S-8340/8341 Series www.ablicinc.com STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER (c) ABLIC Inc., 1999-2010 Rev.4.0_02 The S-8340/8341 Series is a CMOS step-up switching regulator controller which mainly consists of a reference voltage source, oscillation circuit, error amplifier, phase compensation circuit, PWM control circuit (S-8340 Series), and PWM/PFM switching control circuit (S-8341 Series). Since the oscillation frequency is a high 300 kHz or 600 kHz, with the addition of a small external part, the S-8340/8341 Series functions as a highly efficient step-up switching regulator with a high output current. The speed of the output stage is enhanced so that the N-channel power MOS with a low on-resistance can be switched quickly. The S-8340 Series realizes low ripple, high efficiency, and excellent transient characteristics thanks to a PMW control circuit capable of varying the duty ratio linearly from 0 to 82%, optimized error amplifier, and phase compensation circuit. The S-8341 Series contains a PWM/PFM switching control circuit so that it operates using PWM control with a duty ratio of 27% or higher and using PFM control with a duty ratio of lower than 27% to ensure high efficiency in all load ranges. These S-8340/8341 Series serve as ideal main power supply units for portable devices when coupled with the 8-Pin TSSOP package and high oscillation frequencies. Features Oscillation frequency : 600 kHz (A and B types), 300 kHz (C and D types). Output voltage : Selectable in 0.1 V steps between 2.5 to 6.0 V (output voltage fixed output type) Output voltage accuracy : 2.0% Output voltage external setting (FB) type available. FB terminal voltage (VFB) 1.0 V External parts : Coil, diode, capacitors (3), transistor, and resistor only Duty ratio : 0 to 82% (typ.) PWM control (S-8340 Series) 27 to 82% (typ.) PWM/PFM switching control (S-8341 Series A and B types) 21 to 82% (typ.) PWM/PFM switching control (S-8341 Series C and D types) Low-voltage operation: Oscillation guaranteed to start when VDD 0.9 V Built-in current limit circuit: Can be set with an external resistor (RSENSE) Soft-start function set by an external capacitor (CSS) Shutdown function Lead-free, Sn 100%, halogen-free*1 *1. Refer to " Product Name Structure" for details. Applications Power supplies for portable equipments such as PDAs, electronic notebooks, and cellular phones Power supplies for audio equipments such as portable CD players, portable MD players, and headphone stereos Main or local power supplies for notebook PCs and peripherals Constant voltage power supplies for cameras, VCRs, and communication devices Package 8-Pin TSSOP 1 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Block Diagrams (1) S-8340/8341 Series A and C Types (Output Voltage Fixed Output Type) L SD Phase compensation circuit Triangular wave oscillation circuit IC internal power supply PWM comparator EXT VIN VOUT VDD VOUT CC Nch Power MOS FET R1 RS Error amplifier CL CS SENSE PWM, PWM/PFM switching control circuit 120 mV RSENSE Shutdown circuit R2 VSS VREF =1.0 V Voltage/current reference Soft-start circuit CVREF CSS CSS ON/OFF CVREF Figure 1 (2) S-8340/8341 Series B and D Types (Output Voltage External Setting Type) L SD Phase compensation circuit Triangular wave oscillation circuit VIN PWM comparator EXT VOUT VDD IC internal power supply Nch Power MOS FET CFB RS FB Error amplifier SENSE RSENSE 120 mV PWM, PW M/PFM switching control circuit Soft-start circuit Voltage/current reference CVREF CSS ON/OFF RFB2 VREF =1.0 V CSS Figure 2 CVREF CL CS Shutdown circuit 2 RFB1 VSS STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Product Name Structure The control method, product type, and output voltage values for the S-8340/8341 Series can be selected depending on usage. Refer to "1. Product Name" for the definition of the product name, "2. Package" regarding the package drawings and "3. Product Name List" for the full product names. 1. Product Name S-834 x x xx A FT - T2 - x Environmental code U : Lead-free (Sn 100%), halogen-free G : Lead-free (for details, please contact our sales office) IC direction in tape specifications *1 Package name (abbreviation) FT : 8-Pin TSSOP Output voltage 25 to 60 (E.g., when the output voltage is 2.5 V, it is expressed as 25.) Product type A : Output voltage fixed output type, fOSC = 600 kHz B : Output voltage external setting type, fOSC = 600 kHz C : Output voltage fixed output type, fOSC = 300 kHz D : Output voltage external setting type, fOSC = 300 kHz Control method 0 : PWM control 1 : PWM/PFM switching control *1. 2. Refer to the tape drawing. Package Package Name 8-Pin TSSOP Environmental code = G Environmental code = U Package FT008-A-P-SD FT008-A-P-SD Drawing Code Tape FT008-E-C-SD FT008-E-C-SD Reel FT008-E-R-SD FT008-E-R-S1 3 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 3. Product Name List (1) Output Voltage Fixed Output Type Table 1 Output Voltage (V) S-8340 Series A Type fOSC = 600 kHz PWM Control S-8341 Series A Type fOSC = 600 kHz PWM/PFM Switching Control S-8340 Series C Type fOSC = 300 kHz PWM Control S-8341 Series C Type fOSC = 300 kHz PWM/PFM Switching Control 2.5 V S-8340A25AFT-T2-x S-8341A25AFT-T2-x S-8340C25AFT-T2-x S-8341C25AFT-T2-x 3.0 V S-8340A30AFT-T2-x S-8341A30AFT-T2-x S-8340C30AFT-T2-x S-8341C30AFT-T2-x 3.3 V S-8340A33AFT-T2-x S-8341A33AFT-T2-x S-8340C33AFT-T2-x S-8341C33AFT-T2-x 3.4 V S-8340A34AFT-T2-x 3.5 V S-8340A35AFT-T2-x 5.0 V S-8340A50AFT-T2-x S-8341A50AFT-T2-x S-8340C50AFT-T2-x S-8341C50AFT-T2-x 5.1 V S-8340A51AFT-T2-x S-8341C51AFT-T2-x 5.6 V S-8340A56AFT-T2-x 6.0 V S-8340A60AFT-T2-x S-8340C60AFT-T2-x Remark 1. Contact the ABLIC Inc. marketing department for products with an output voltage other than those specified above. 2. x: G or U 3. Please select products of environmental code = U for Sn 100%, halogen-free products. (2) Output Voltage External Setting Type Table 2 Output Voltage (V) S-8340 Series B Type fOSC = 600 kHz PWM Control S-8341 Series B Type fOSC = 600 kHz PWM/PFM Switching Control S-8340 Series D Type fOSC = 300 kHz PWM Control S-8341 Series D Type fOSC = 300 kHz PWM/PFM Switching Control External setting S-8340B00AFT-T2-x S-8341B00AFT-T2-x S-8340D00AFT-T2-x S-8341D00AFT-T2-x Remark 1. x: G or U 2. Please select products of environmental code = U for Sn 100%, halogen-free products. 4 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Pin Configurations Table 3 8-Pin TSSOP Top view 1 2 3 4 8 7 6 5 Figure 3 Pin No. Symbol 1 VSS 2 CVREF 3 CSS 4 ON/OFF 5 VDD 6 VOUT (FB) 7 8 EXT SENSE Pin Description GND pin Reference voltage source pass capacitor connection pin Soft-start capacitor connection pin Shutdown pin "H" : Normal operation (step-up operating) "L" : Entire circuit stopped (step-up stopped) IC power supply pin Output voltage fixed output type : Output voltage monitoring pin [Output voltage external setting type : Feedback pin] External transistor connection pin Current limit detection pin 5 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Absolute Maximum Ratings Table 4 (Ta = 25C unless otherwise specified) Parameter Symbol Absolute Maximum Rating Unit VDD pin voltage VDD VSS 0.3 to VSS 12 V VOUT pin voltage VOUT VSS 0.3 to VSS 12 V FB pin voltage VFB VSS 0.3 to VSS 12 V CVREF pin voltage VCVREF VSS 0.3 to VDD 0.3 V CSS pin voltage VCSS VSS 0.3 to VDD 0.3 V ON/OFF pin voltage VON/OFF VSS 0.3 to VSS 12 V SENSE pin voltage VSENSE VSS 0.3 to VSS 12 V EXT pin voltage VEXT VSS 0.3 to VDD 0.3 V EXT pin current IEXT 100 mA Power dissipation PD 300 (When not mounted on board) mW *1 700 mW Operating ambient temperature Tdpr 40 to 85 C Storage temperature Tstg 40 to 125 C *1. When mounted on board [Mounted board] (1) Board size : 114.3 mm x 76.2 mm x t1.6 mm (2) Board name : JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. (1) When mounted on board (2) 700 600 500 400 300 200 100 0 0 50 150 100 Ambient temperature Ta (C) Figure 4 6 When not mounted on board 400 Power dissipation PD (mW) Power dissipation PD (mW) 800 300 200 100 0 0 50 100 150 Ambient temperature Ta (C) Power Dissipation of Packages STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Electrical Characteristics (1) 600 kHz, Output Voltage Fixed Type (A Type) Table 5 (Ta = 25C unless otherwise specified) Parameter Symbol Conditions Min. VIN VOUT(S) 0.6, IOUT VOUT(S)/50 Typ. Max. Unit Measurement Circuit VOUT(S) 1.02 6 0.9 V 2 ISS2 S-834xA25 34 S-834xA35 44 S-834xA45 54 S-834xA55 60 VOUT VOUT(S) 0.5 V, EXT pin open 350 460 630 810 180 640 810 1060 1250 300 A A A A A 2 2 2 2 2 ISSS VOUT VOUT(S) 0.95, VON/OFF 0 V 3.0 A 2 IEXTH VEXT VOUT(E) 0.2 V IEXTL VEXT 0.2 V 13 17 21 23 32 42 50 56 mA mA mA mA mA mA mA mA Line regulation VOUT1 VIN VOUT(S) 0.4 to VOUT(S) 0.6 IOUT VOUT(S)/50 1 VOUT2 VIN VOUT(S) 0.6, 10 A IOUT VOUT(S)/40 VOUT(S) 1% VOUT(S) 1% V Load regulation 24 30 34 37 56 69 78 85 VOUT(S) 0.5% VOUT(S) 0.5% V 1 Output voltage *2 temperature coefficient VOUT VIN VOUT(S) 0.6, IOUT VOUT(S)/50 , TaVOUT Ta 40 to 85C VOUT VOUT(S) 0.95 fOSC Measure waveform at the EXT pin VIN VOUT(S) 0.95 MaxDuty Measure waveform at the EXT pin 100 ppm/C 1 510 600 690 kHz 2 73 82 89 % 2 19 27 35 % 1 90 120 150 mV 2 0.8 V 2 0.3 V 2 0.1 0.1 0.1 0.1 A A 2 2 3.0 6.0 14.0 ms 1 3.0 8.0 14.0 ms 1 83 85 87 87 % % % % 1 1 1 1 Output voltage *1 VOUT(E) Input voltage VIN Oscillation start voltage VST Current consumption 1 ISS1 Current consumption 2 Current consumption at shutdown EXT pin output current Oscillation frequency Maximum duty ratio PWM/PFM switching duty ratio (S-8341 Series A type) PFMDuty Current limit detection voltage VSENSE ON/OFF pin input voltage VSH VSL ON/OFF pin input leakage current Soft-start time Efficiency ISH ISL tSS EFFI VOUT(S) 0.98 No external parts. The voltage is applied to VOUT. VOUT VOUT(S) 0.95, EXT pin open S-834xA25 34 S-834xA35 44 S-834xA45 54 S-834xA55 60 S-834xA25 34 S-834xA35 44 S-834xA45 54 S-834xA55 60 VIN VOUT(E) 0.1 V, under no load VOUT VOUT(S) 0.95 Judge oscillation at the EXT pin or oscillation stop at "L" VOUT VOUT(S) 0.95 Judge oscillation at the EXT pin. VOUT VOUT(S) 0.95 Judge oscillation stop at the EXT pin. VOUT 6 V, VON/OFF 6 V VOUT 6 V, VON/OFF 0 V VIN VOUT(S) 0.6, CSS 4700 S-8340Axx pF, IOUT VOUT(S)/50 Measure time until oscillation occurs at the EXT pin. VIN VOUT(S) 0.6, IOUT VOUT(S)/50 S-8341Axx S-834xA25 34 S-834xA35 44 S-834xA45 54 S-834xA55 60 VOUT(S) V 1 V 1 7 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series External parts Coil : Diode : Capacitor : Transistor : Base resistor (Rb) : Base capacitor (Cb) : CVREF : CSS : Sumida Corporation CD54 (10 H) Matsushita Electronic Industrial Co., Ltd. MA735 (Schottky type) Nichicon Corporation F93 (16 V, 47 F, tantalum type) Sanyo Electric Co., Ltd. 2SD1628G 1.0 k 2200 pF (ceramic type) 0.01 F 4700 pF The VDD pin is connected to the VOUT pin. The ON/OFF pin is connected to the VOUT pin unless otherwise specified. Connect the SENSE pin to the VSS pin. *1. VOUT(S) : Set output voltage value VOUT(E) : Actual output voltage value : Output voltage value when IOUT VOUT(S)/50 and VIN VOUT(S) 0.6. *2. The change of output voltage with temperature [mV/C] is calculated from the following formula. VOUT [mV/C] = VOUT(S) [V] Ta (Change of output voltage with temperature) Caution 8 VOUT [ppm/C] 1000 Ta VOUT (Set output voltage (Output voltage temperature value) coefficient) The S-8340/8341 Series steps up from VDD = 0.9 V. However, 2.5 V or more for VDD is recommended to stabilize the output voltage and oscillation frequency. If VDD is taken from VIN or other power sources, instead of VOUT, VDD should be 2.5 V or more. However, if VDD is not taken from VOUT, note that the output voltage accuracy of 2.0% is not guaranteed due to dependency of output voltage on VDD. In particular, accuracy of output voltage is degraded significantly when the VDD voltage is 6.0 V or more. Therefore, do not use this IC when the VDD voltage is 6.0 V or more. If VDD of 2.5 V or more is applied, increase power supply so that VDD becomes 2.5 V or more within the soft-start time (3.0 ms). STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (2) 600 kHz, Output Voltage External Setting Type (B Type) Table 6 (Ta = 25C unless otherwise specified) Parameter Symbol *1 Conditions Min. Typ. Max. Unit Measurement Circuit VOUT(E) VIN 2.4 V, IOUT 80 mA 3.920 4.000 4.080 V 3 FB pin voltage VFB VIN 2.4 V, IOUT 80 mA 0.980 1.000 1.020 V 3 Input voltage VIN 6 V 3 0.9 V 4 Output voltage No external parts. Oscillation start voltage VST2 Current consumption 1 ISS1 VOUT 3.8 V Current consumption 2 ISS2 VOUT ISSS VOUT 3.8 V, VON/OFF 0 V Current consumption at shutdown The voltage is applied to VDD. 4.5 V 460 740 A 4 180 300 A 4 3.0 A 4 IEXTH VEXT VOUT(E) 0.2 V 19 30 mA IEXTL VEXT 0.2 V 46 69 mA Line regulation VOUT1 1.6 V VIN 2.4 V, IOUT 80 mA 20 40 mV 3 Load regulation VOUT2 VIN 2.4 V, 10 A IOUT 100 mA 20 40 mV 3 VIN 2.4 V, IOUT 80 mA, Ta 40 to 85C 100 ppm/C 3 EXT pin output current VOUT Output voltage temperature coefficient *2 TaVOUT Oscillation frequency fOSC VOUT 3.8 V, measure waveform at the EXT pin 510 600 690 kHz 4 Maximum duty ratio MaxDuty VIN 3.8 V, measure waveform at the EXT pin 73 82 89 % 4 PFMDuty VIN VOUT(E) 0.1 V, under no load 19 27 35 % 3 90 120 150 mV 4 50 50 nA 4 0.8 V 4 0.3 V 4 PWM/PFM switching duty ratio (S-8341 Series B type) Current limit detection voltage FB pin input current VOUT 3.8 V VSENSE Judge oscillation at the EXT pin or oscillation stop at "L" IFB ON/OFF pin input voltage VSH VOUT 6 V, VFB 1.5 V VOUT 3.8 V Judge oscillation at the EXT pin. VSL VOUT 3.8 V Judge oscillation stop at the EXT pin. ON/OFF pin input ISH VOUT 6 V, VON/OFF 6 V 0.1 0.1 A 4 leakage current ISL VOUT 6 V, VON/OFF 0 V 0.1 0.1 A 4 Soft-start time tSS VIN 2.4 V, S-8340B00 3.0 6.0 14.0 ms 3 S-8341B00 3.0 8.0 14.0 ms 3 85 % 3 CSS 4700 pF, IOUT 80 mA, Measure time until oscillation occurs at the EXT pin. Efficiency EFFI VIN 2.4 V, IOUT 80 mA 9 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series External parts Sumida Corporation CD54 (10 H) Matsushita Electronic Industrial Co., Ltd. MA735 (Schottky type) Nichicon Corporation F93 (16 V, 47 F, tantalum type) Sanyo Electric Co., Ltd. 2SD1628G 1.0 k 2200 pF (ceramic type) 0.01 F 4700 pF 300 k 100 k 50 pF Coil : Diode : Capacitor : Transistor : Base resistor (Rb) : Base capacitor (Cb) : CVREF : CSS : RFB1 : RFB2 : CFB : The ON/OFF pin is connected to the VOUT pin unless otherwise specified. Connect the SENSE pin to the VSS pin. *1. VOUT(E) : Actual output voltage value : Output voltage value when IOUT 80 mA and VIN = 2.4 V is applied. 300 k The Typ. value (set output voltage value) is 1 + [V] 100 k *2. The change of output voltage with temperature [mV/C] is calculated from the following formula. However, the temperature change rates for RFB1 and RFB2 are assumed to be the same. VOUT [mV/C] 1 Ta (Change of output voltage with temperature) Caution 10 RFB1 RFB2 (Set output voltage value) VOUT [ppm/C] 1000 Ta VOUT (Output voltage temperature coefficient) The S-8340/8341 Series steps up from VDD = 0.9 V. However, 2.5 V or more for VDD is recommended to stabilize the output voltage and oscillation frequency. If VDD is taken from VIN or other power sources, instead of VOUT, VDD should be 2.5 V or more. However, if VDD is other than 4.0 V, note that the output voltage accuracy of 2.0% is not guaranteed due to dependency of output voltage on VDD. In particular, accuracy of output voltage is degraded significantly when the VDD voltage is 6.0 V or more. Therefore, do not use this IC when the VDD voltage is 6.0 V or more. If VDD of 2.5 V or more is applied, increase power supply so that VDD becomes 2.5 V or more within the soft-start time (3.0 ms). STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (3) 300 kHz, Output Voltage Fixed Type (C Type) Table 7 (Ta = 25C unless otherwise specified) Parameter Symbol Conditions Min. VIN VOUT(S) 0.6, IOUT VOUT(S)/50 Typ. Max. Unit Measurement Circuit VOUT(S) 1.02 6 0.9 V 2 ISS2 S-834xC25 34 S-834xC35 44 S-834xC45 54 S-834xC55 60 VOUT VOUT(S) 0.5 V, EXT pin open 210 270 350 440 110 430 520 650 740 185 A A A A A 2 2 2 2 2 ISSS VOUT VOUT(S) 0.95, VON/OFF 0 V 3.0 A 2 IEXTH VEXT VOUT(E) 0.2 V IEXTL VEXT 0.2 V 13 17 21 23 32 42 50 56 mA mA mA mA mA mA mA mA Line regulation VOUT1 VIN VOUT(S) 0.4 to VOUT(S) 0.6 IOUT VOUT(S)/50 1 VOUT2 VIN VOUT(S) 0.6, 10 A IOUT VOUT(S)/40 VOUT(S) 1% VOUT(S) 1% V Load regulation 24 30 34 37 56 69 78 85 VOUT(S) 0.5% VOUT(S) 0.5% V 1 Output voltage *2 temperature coefficient VOUT VIN VOUT(S) 0.6, IOUT VOUT(S)/50 TaVOUT Ta 40 to 85C VOUT VOUT(S) 0.95 fOSC Measure waveform at the EXT pin VIN VOUT(S) 0.95 MaxDuty Measure waveform at the EXT pin 100 ppm/C 1 255 300 345 kHz 2 73 82 89 % 2 15 21 31 % 1 90 120 150 mV 2 0.8 V 2 0.3 V 2 0.1 0.1 0.1 0.1 A A 2 2 6.0 14.3 28.0 ms 1 6.0 17.2 28.0 ms 1 83 85 87 87 % % % % 1 1 1 1 Output voltage *1 VOUT(E) Input voltage VIN Oscillation start voltage VST Current consumption 1 ISS1 Current consumption 2 Current consumption at shutdown EXT pin output current Oscillation frequency Maximum duty ratio PWM/PFM switching duty ratio (S-8341 Series C type) PFMDuty Current limit detection voltage VSENSE ON/OFF pin input voltage VSH VSL ON/OFF pin input leakage current Soft-start time Efficiency ISH ISL tSS EFFI VOUT(S) 0.98 No external parts. The voltage is applied to VOUT. VOUT VOUT(S) 0.95, EXT pin open S-834xC25 34 S-834xC35 44 S-834xC45 54 S-834xC55 60 S-834xC25 34 S-834xC35 44 S-834xC45 54 S-834xC55 60 VIN VOUT(E) 0.1 V, under no load VOUT VOUT(S) 0.95 Judge oscillation at the EXT pin or oscillation stop at "L" VOUT VOUT(S) 0.95 Judge oscillation at the EXT pin. VOUT VOUT(S) 0.95 Judge oscillation stop at the EXT pin. VOUT 6 V, VON/OFF 6 V VOUT 6 V, VON/OFF 0 V VIN VOUT(S) 0.6, CSS 4700 S-8340Cxx pF, IOUT VOUT(S)/50 , Measure time until oscillation occurs at EXT pin. VIN VOUT(S) 0.6, IOUT VOUT(S)/50 S-8341Cxx S-834xC25 34 S-834xC35 44 S-834xC45 54 S-834xC55 60 VOUT(S) V 1 V 1 11 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series External parts Coil : Diode : Capacitor : Transistor : Base resistor (Rb) : Base capacitor (Cb) : CVREF : CSS : Sumida Corporation CD54 (10 H) Matsushita Electronic Industrial Co., Ltd. MA735 (Schottky type) Nichicon Corporation F93 (16 V, 47 F, tantalum type) Sanyo Electric Co., Ltd. 2SD1628G 1.0 k 2200 pF (ceramic type) 0.01 F 4700 pF The VDD pin is connected to the VOUT pin. The ON/OFF pin is connected to the VOUT pin unless otherwise specified. Connect the SENSE pin to the VSS pin. *1. VOUT(S) : Set output voltage value VOUT(E) : Actual output voltage value : Output voltage value when IOUT VOUT(S)/50 and VIN VOUT(S) 0.6. *2. The change of output voltage with temperature [mV/C] is calculated from the following formula. VOUT [mV/C] = VOUT(S) [V] Ta (Change of output voltage with temperature) Caution 12 VOUT [ppm/C] 1000 Ta VOUT (Set output voltage (Output voltage temperature value) coefficient) The S-8340/8341 Series steps up from VDD = 0.9 V. However, 2.5 V or more for VDD is recommended to stabilize the output voltage and oscillation frequency. If VDD is taken from VIN or other power sources, instead of VOUT, VDD should be 2.5 V or more. However, if VDD is not taken from VOUT, note that the output voltage accuracy of 2.0% is not guaranteed due to dependency of output voltage on VDD. In particular, accuracy of output voltage is degraded significantly when the VDD voltage is 6.0 V or more. Therefore, do not use this IC when the VDD voltage is 6.0 V or more. If VDD of 2.5 V or more is applied, increase power supply so that VDD becomes 2.5 V or more within the soft-start time (6.0 ms). STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (4) 300 kHz, Output Voltage External Setting Type (D Type) Table 8 (Ta = 25C unless otherwise specified) Parameter Output voltage Symbol *1 Conditions Min. Typ. Max. Unit Measurement Circuit VOUT(E) VIN = 2.4 V, IOUT = 80 mA 3.920 4.000 4.080 V 3 FB pin voltage VFB VIN = 2.4 V, IOUT = 80 mA 0.980 1.000 1.020 V 3 Input voltage VIN 6 V 3 0.9 V 4 No external parts. Oscillation start voltage VST2 Current consumption 1 ISS1 VOUT = 3.8 V 255 460 A 4 Current consumption 2 ISS2 VOUT = 4.5 V 110 185 A 4 ISSS VOUT = 3.8 V, VON/OFF = 0 V 3.0 A 4 Current consumption at shutdown The voltage is applied to VDD. IEXTH VEXT = VOUT(E) 0.2 V 19 30 mA IEXTL VEXT = 0.2 V 46 69 mA Line regulation VOUT1 1.6 V VIN 2.4 V, IOUT = 80 mA 20 40 mV 3 Load regulation VOUT2 VIN = 2.4 V, 10 A IOUT 100 mA 20 40 mV 3 VIN = 2.4 V, IOUT = 80 mA, Ta = 40to 85C 100 ppm/C 3 EXT pin output current VOUT Output voltage temperature coefficient *2 TaVOUT Oscillation frequency fOSC VOUT = 3.8 V, Measure waveform at the EXT pin 255 300 345 kHz 4 Maximum duty ratio MaxDuty VIN = 3.8 V, Measure waveform at the EXT pin 73 82 89 % 4 PFMDuty VIN = VOUT(E) 0.1 V, Under no load 15 21 31 % 3 90 120 150 mV 4 50 50 nA 4 0.8 V 4 0.3 V 4 PWM/PFM switching duty ratio (S-8341 Series D type) Current limit detection voltage FB pin input current VOUT = 3.8 V VSENSE Judge oscillation at the EXT pin or oscillation stop at "L" IFB ON/OFF pin input voltage VSH VOUT = 6 V, VFB = 1.5 V VOUT = 3.8 V Judge oscillation at the EXT pin. VSL VOUT = 3.8 V Judge oscillation stop at the EXT pin. ISH VOUT = 6 V, VON/OFF = 6 V 0.1 0.1 A 4 leakage current ISL VOUT = 6 V, VON/OFF = 0 V 0.1 0.1 A 4 Soft-start time tSS VIN = 2.4 V, S-8340D00 6.0 14.3 28.0 ms 3 S-8341D00 6.0 17.2 28.0 ms 3 85 % 3 ON/OFF pin input CSS = 4700 pF, IOUT = 80 mA, Measure time until oscillation occurs at the EXT pin. Efficiency EFFI VIN = 2.4 V, IOUT = 80 mA 13 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series External parts Sumida Corporation CD54 (10 H) Matsushita Electronic Industrial Co., Ltd. MA735 (Schottky type) Nichicon Corporation F93 (16 V, 47 F, tantalum type) Sanyo Electric Co., Ltd. 2SD1628G 1.0 k 2200 pF (ceramic type) 0.01 F 4700 pF 300 k 100 k 50 pF Coil : Diode : Capacitor : Transistor : Base resistor (Rb) : Base capacitor (Cb) : CVREF : CSS : RFB1 : RFB2 : CFB : The ON/OFF pin is connected to the VOUT pin unless otherwise specified. Connect the SENSE pin to the VSS pin. *1. VOUT(E) : Actual output voltage value : Output voltage value when IOUT 80 mA and VIN = 2.4 V is applied. 300 k The Typ. value (set output voltage value) is 1 + [V] 100 k *2. The change of output voltage with temperature [mV/C] is calculated from the following formula. However, the temperature change rates for RFB1 and RFB2 are assumed to be the same. VOUT [mV/C] 1 Ta (Change of output voltage with temperature) Caution 14 RFB1 RFB2 (Set output voltage value) VOUT [ppm/C] 1000 Ta VOUT (Output voltage temperature coefficient) The S-8340/8341 Series steps up from VDD = 0.9 V. However, 2.5 V or more for VDD is recommended to stabilize the output voltage and oscillation frequency. If VDD is taken from VIN or other power sources, instead of VOUT, VDD should be 2.5 V or more. However, if VDD is other than 4.0 V, note that the output voltage accuracy of 2.0% is not guaranteed due to dependency of output voltage on VDD. In particular, accuracy of output voltage is degraded significantly when the VDD voltage is 6.0 V or more. Therefore, do not use this IC when the VDD voltage is 6.0 V or more. If VDD of 2.5 V or more is applied, increase power supply so that VDD becomes 2.5 V or more within the soft-start time (6.0 ms). STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Measurement Circuits 1. SD L Cb + CL Rb VIN + CIN EXT SENSE VSS CVREF VOUT VDD CSS ON/OFF RL V Figure 5 2. A + EXT Oscilloscope SENSE VSS VOUT CVREF VDD CSS ON/OFF A Figure 6 3. SD L Cb CFB RFB1 + C L Rb VIN + CIN SENSE VSS EXT FB CVREF CSS VDD RL V RFB2 ON/OFF Figure 7 15 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 4. A RFB1 Oscilloscope CFB SENSE EXT FB + VDD A VSS CVREF CSS ON/OFF A Figure 8 16 RFB2 VOUT STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Operation 1. Switching Control Method 1. 1 PWM Control (S-8340 Series) The S-8340 Series is a DC-DC converter using a pulse width modulation method (PWM). In conventional PFM DC-DC converters, pulses are skipped when the output load current is low, causing a fluctuation in the ripple frequency of the output voltage, resulting in an increase in the ripple voltage. The switching frequency does not change, although the pulse width changes from 0 to 82% corresponding to each load current in the S-8340 Series. The ripple voltage generated from switching can thus be eliminated easily through a filter. When the pulse width is 0% (when no load is applied or the input voltage is high), pulses are skipped and the current consumption is low. 1. 2 PWM/PFM Switching Control (S-8341 Series) The S-8341 Series is a DC-DC converter that automatically switches between a pulse width modulation method (PWM) and a pulse frequency modulation method (PFM) depending on the load current. The S-8341 Series operates under PWM control with the pulse duty changing from 27 to 82% (A and B types) and from 21 to 82% (C and D types) in a high output load current area. The S-8341 Series operates under PFM control with the pulse duty fixed at 27% (A and B types) and at 21% (C and D types) in a low load current area, and pulses are skipped according to the load current. The oscillation circuit thus oscillates intermittently so that the resultant lower self current consumption prevents a reduction in the efficiency at a low load current. The switching point from PWM control to PFM control depends on the external devices (coil, diode, etc.), and input and output voltage values. The S-8341 Series is an especially highly efficient DC-DC converter at an output load current around 1 mA. 2. Soft-Start Function The S-8340/8341 Series has a built-in soft-start circuit. This circuit enables the output voltage (VOUT) to rise gradually over the specified soft-start time (tSS) to suppress the overshooting of the output voltage and the rush current from the power supply when the power is switched on or the ON/OFF pin is changed to "H". Generally, a rush current flows to an output capacitor through an inductor and a diode in the step-up circuit immediately after the power is turned on as shown in Figure 9. Note that the soft-start function of this IC, however, does not limit this current. S -8 3 40 A 3 3 A F T (V IN 0 1 .9 V , R L 3 0 0 k ) 3 V O u t p u t vo lta g e (1 V /d iv ) 0 V 1 .5 A R u s h cu r re n t (0. 5 A /d iv ) 0 A t (2 m s /d iv ) Figure 9 Waveforms of Output Voltage and Rush Current at Soft-Start 17 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series The soft-start circuit of the S-8340/8341 Series increases the duty ratio gradually as shown in Figure 10. The soft-start time (tSS) can be set with an external capacitor (CSS). Figure 10 Image of EXT Pin Waveform If fOSC 600 kHz and CSS 4700 pF, the time until the duty ratio of 50% is reached is 9.7 ms (typ.). If VIN 2 V, the approximate time until a specific duty ratio is reached is calculated from the following formula : If fOSC 600 kHz, tSS [ms] = CSS [pF] If fOSC 300 kHz, tSS [ms] = CSS [pF] 8.336 Duty [%] + 682.45 535000 6.564 Duty [%] + 698 229000 Even if the IC reaches a certain duty at a duty ratio of 0 to 43%, there may be a delay of the output voltage (VOUT) in reaching the specified voltage (VOUT(S)). This delay occurs due to the delay of the error amplifier reference voltage in reaching the specified voltage (1.0 V). Note that the maximum delay time may be the value calculated when a duty ratio is 43%. 3. ON/OFF Pin (Shutdown Pin) The ON/OFF pin stops or starts the step-up operation. When the ON/OFF pin is set to "L", all the internal circuits stop operating, reducing power consumption. The EXT pin voltage becomes equal to the VSS voltage, thereby turning off the switching transistor. The ON/OFF pin is configured as shown in Figure 11 and is not either pulled up or pulled down. So, do not use it in a floating state. Applying 0.3 to 0.8 V to the ON/OFF pin increases current consumption. So do not apply such voltage. When the ON/OFF pin is not used, connect it to the VDD pin. The ON/OFF pin does not have hysterisis. VDD ON/OFF ON/OFF Pin CR Oscillation Circuit Output Voltage "H" Operating Set value "L" Stopped VIN*1 *1. Voltage obtained by extracting the voltage drop due to DC resistance of the inductor and the diode forward voltage from VIN. VSS Figure 11 ON/OFF Pin Structure 18 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 4. Current Limit Circuit The current limit circuit of the S-8340/8341 Series protects the external transistors from being damaged by heat due to an overload or magnetic saturation of coils. Inserting a SENSE resistor (RSENSE) between the external FET source or external NPN bipolar transistor emitter and Vss and entering a connection point with a sensor resistor into the SENSE pin enables the current limit to function. Refer to " Standard Circuit". A current limiting comparator in the IC monitors the SENSE pin for reaching the current limit detection voltage (VSENSE 120 mV (typ.)). Upon detection of the voltage, the external transistor is held off for one clock of the oscillator so that the current flowing in the external transistor is limited. At the ON signal of the next clock, the external transistor is turned on and the current limit detection function is resumed. However, this current limit circuit contains a CR filter with a time constant ( = 220 ns (typ.)) between the SENSE pin and the current limiting comparator in the IC to prevent detection errors caused by the spike voltage generated at the SENSE pin. If the time (pulse width tON : "H" level time at the EXT pin) after the external transistor turns on until the current limit circuit operates is short, the current value that is actually limited becomes higher than the current limit setting value determined by VSENSE/RSENSE as a side effect. The actual limit current value (ILIMIT) is expressed by the following equation : ton 0.5 ILIMIT 1 e CR RSENSE VSENSE Remark CR in the equation is determined by the internal CR filter and varies in the range 116 to 470 ns (220 ns (typ.).) Caution Therefore, this current limit function does not guarantee full protection of external parts by ILIMIT VSENSE/RSENSE under all operating conditions. Perform a thorough evaluation using the actual devices. For example, usage when the current value that the current limit circuit actually functions to raise the current limit set value decided by VSENSE/RSENSE that includes usage under the conditions that the input voltage become close to the output voltage or situations when the output voltage falls due to the activation of the current limit circuit and become close to the input voltage. Figure 12 shows an example of the actually measured increase of the peak current flowing through the coil when the current limit circuit functions while the input voltage is nearing the output voltage. Figure 13 shows an example of the actually measured increase of the peak current flowing through the coil when the output voltage drops and approaches the input voltage by increasing the output current after the current limit circuit functions. Input Voltage (VIN) vs. Coil Peak Current (ILPEAK) 4 Output Current (IOUT) vs. Coil Peak Current (ILPEAK) S-8340A50 (RSENSE 51 m) 5 ILPEAK (A) ILPEAK (A) 2 VSENSE / RSENSE 1 Figure 12 Current limit circuit is activated 4 3 0 S-8340A50 (VIN 3V, RSENSE 51 m) Influence of CR filter 3 2 VSENSE / RSENSE 1 1 2 3 VIN (V) 4 5 ILPEAK Measured at Activation of Current Limit (VOUT Starts to Fall) 0 0 2 1 3 IOUT (A) Figure 13 Measuring Coil Peak Current (ILPEAK) If the current limit circuit is not used, remove RSENSE and connect the external transistor source or the emitter and the SENSE pin to VSS. 19 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Series Products and External Parts Selection 1. Method for Selecting Series Products The S-8340/8341 Series is classified into eight types, according to the control systems (PWM and PWM/PFM switching), oscillation frequencies, and output voltage setting types. The following describes the features of respective types. Select the type according to the applications. 1. 1 Control Systems Two different control systems are available : PWM control system (S-8340 Series) and PWM/PFM switching control system (S-8341 Series). For applications for which the load current greatly differs between standby and operation, if the efficiency during standby is important, applying the PWM/PFM switching system (S-8341 Series) realizes high efficiency during standby. For applications for which switching noise is critical, applying the PWM control system (S-8340 Series) whereby switching frequency does not change due to load current allows the ripple voltage to be easily eliminated by using a filter. 1. 2 Oscillation Frequencies Either oscillation frequencies, 600 kHz (A and B types) or 300 kHz (C and D types), can be selected. The A and B types whereby high operation frequency allows the L value to be reduced, so a small inductor can be used. In addition, use of small output capacitors is effective for downsizing devices. The C and D types, whereby lower oscillation frequency realizes smaller self-consumption current, are highly efficient under light loads. In particular, the C type, when combined with a PWM/PFM switching control system, drastically improves the operation efficiency when the output load current is approximately 1 mA. 1. 3 Output Voltage Setting Either fixed output type (A and C types) or external setting type (B and D types) can be selected. The A and C types, whereby output voltage can be internally set between 2.5 and 6.0 V in the 0.1 V steps, realizes highly accurate output voltage of 2.0% with internal highly resistant and highly accurate resistors. In the B and D types, the output voltage can be adjusted in the range 2.5 to 6.0 V by adding external resistors (RFB1 and RFB2) and a capacitor (CFB). A temperature gradient can be provided by installing a thermistor in series to RFB1 and RFB2. The resistance of RFB1 RFB2 must not exceed 2 M, and set the ratio of RFB1 to RFB2 so that the FB pin is at 1.0 V. Add CFB in parallel with RFB1 to prevent unstable operation due to output oscillation. Set CFB so that fOSC 1/(2 CFB RFB1) is 0.1 to 20 kHz (normally, 10 kHz). Example : VOUT 3.0 V, RFB1 200 k, RFB2 100 k, CFB 100 pF The accuracy of the output voltage VOUT set with resistors RFB1 and RFB2 is affected by the absolute precision of external resistors RFB1 and RFB2, the FB pin input current (IFB) and IC power supply voltage (VDD) as well as the precision of the voltage at FB pin (1 V 2.0%). When it is assumed that IFB is 0 nA, the maximum absolute value variations of external resistors RFB1 and RFB2 are RFB1max. and RFB2max., the minimum absolute value variations of external resistors RFB1 and RFB2 are RFB1min. and RFB2min., and the shift of the output voltage due to the dependence of voltage on VDD is V, the minimum value (VOUT min.) and maximum value (VOUT max.) of variations of VOUT are expressed by the following formulas : 20 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series VOUT min. (1 RFB1 min. ) 0.98 V V RFB2 max. RFB1 max. VOUT max. (1 ) 102 V V RFB2 min. RFB1 and RFB2 must be adjusted in order to set the voltage accuracy of VOUT to the IC output voltage accuracy (VOUT 2.0) or lower. The smaller RFB1 and RFB2 are, the less VOUT is affected by the absolute value accuracy of RFB1 and RFB2. The smaller RFB1 and RFB2 are, the less VOUT is affected by IFB. To reduce the influence due to IFB that affects variations of VOUT, the RFB2 value must be set to a value sufficiently lower than the input impedance at the FB pin (1 V/50 nA 20 M (max.)). Reactive current flows through RFB1 and RFB2. Unless the reactive current value is limited as low as possible with respect to the actual load current, efficiency decreases. Therefore, RFB1 and RFB2 should be sufficiently large. Caution If the RFB1 and RFB2 values are too large (1 M or more), VOUT is subject to be affected by external noise, therefore, thoroughly test the performance with the actual equipment. Since the accuracy of VOUT and reactive current must be traded off, they must be considered according to application requirements. Caution Connect the VDD pin to the VOUT pin for both the fixed output types and external setting types as shown in " Standard Circuit". In the cases when VDD requires to be applied from VIN or other power source instead of VOUT, raise VDD to 2.5 V or higher within the soft-start time (3.0 ms: A and B types, 6.0 ms: C and D types). When the VDD pin is connected to the VOUT pin, VIN can be increased slowly without any problems. The table below provides a rough guide for selecting a product type according to the application requirements of the application. Choose the product that gives you the largest number of circles (O). Table 9 A S-8340 B C D A S-8341 B C D The set output voltage is 6 V or less Set an output voltage freely The efficiency under light loads (approx. 1mA) is an important factor To be operated with a medium load current (200 mA class) To be operated with a high load current (1 A class) It is important to have a low-ripple voltage Downsizing of external components is important Remark The symbol " " denotes an indispensable condition, while the symbol "" indicates that the corresponding series has superiority in that aspect. The symbol "" indicates particularly high superiority. 21 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 2. Inductor The inductance value (L value) greatly affects the maximum output current (IOUT) and the efficiency (). As the L value is reduced gradually, the peak current (IPK) increases and IOUT increases. As the L value is made even smaller, IOUT decreases since the efficiency degrades and the current driveability is insufficient. As the L value is increased, the dissipation in the switching transistor due to IPK decreases, and the efficiency reaches the maximum at a certain L value. As the L value is made even larger, the efficiency degrades since the dissipation due to the series resistance of the inductor increases. IOUT also decreases. In the S-8340/8341 Series, as the L value is increased, the output voltage may be unstable depending on the conditions of the input voltage, output voltage, and load current. Select the L value after performing a thorough valuation under actual use conditions. The guidelines for the L range are from 2.2 to 22 H for the A and B types, and 4.7 to 47 H for the C and D types. The recommended L value is 5 to 10 H for the A and B types, and 10 to 22 H for the C and D types. When choosing an inductor, attention to its allowable current should be paid since the current exceeding the allowable value will cause magnetic saturation in the inductor, leading to a marked decline in efficiency and a breakdown of the IC due to large current. An inductor should therefore be selected so that IPK does not surpass its allowable current. IPK is represented by the following equations in non-continuous operation mode. IPK 2 IOUT (VOUT VF VIN) fosc L Where fOSC is the oscillation frequency, L is the inductance value of the inductor, and VF is the forward voltage of the diode. VF should be appropriately 0.4 V. For example, if a power supply with the input voltage (VIN) 3 V, output voltage (VOUT) 5 V, and load current (IOUT) 30 mA is used, fOSC 600 kHz when the S-8340A50AFT is used. When 10 H is selected for the L value, IPK 155 mA from the above formula. Therefore, in this case, an inductor with a permissible current of 155 mA or higher for the L value of 10 H should be selected. 3. Diode Use an external diode that meets the following requirements : Low forward voltage (Schottky barrier diode is recommended.) High switching speed (50 ns max.) The reverse-direction withstand voltage is VOUT VF or higher. The current rating is IPK or larger. 4. Capacitors (CIN, CL) A capacitor inserted on the input side (CIN) improves the efficiency by reducing the power impedance and stabilizing the input current. Select a CIN value according to the impedance of the power supply used. Approximately 47 to 100 F is recommended for a capacitance depending on the impedance of the power source and load current value. For the output side capacitor (CL), select a large capacitance with low ESR (Equivalent Series Resistance) for smoothing the ripple voltage. When the input voltage is extremely high or the load current is extremely large, the output voltage may become unstable. In this case the unstable area will become narrow by selecting a large capacitance for an output capacitor. A tantalum electrolyte capacitor is recommended since the unstable area widens when a capacitor with a large ESR, such as an aluminum electrolyte capacitor, or a capacitor with a small ESR, such as a ceramic capacitor, is chosen. It is recommended that a capacitor of which the capacitance is 47 to 200 F and ESR is 40 to 270 m be selected. Fully evaluate input and output capacitors under actual operating conditions, then select them. 22 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 5. External Transistors Enhancement (N-channel) MOS FET type or bipolar (NPN) type can be used for the external transistors. 5. 1 Enhancement (N-Channel) MOS FET Type The EXT pin can directly drive an N-channel MOS FET. When an N-channel MOS FET is used, efficiency will be 2 to 3% higher than that achieved by an NPN bipolar transistor since the MOS FET switching speed is faster and power dissipation due to the base current is avoided. A large current may flow at power on with some MOS FETs selected. Perform thorough evaluation using the actual devices to select. The recommended gate capacitance of the MOS FET to be used is 1200 pF or smaller. The important parameters in selecting a MOS FET are threshold voltage, breakdown voltage between drain and source, total gate capacitance, on-resistance, and the current rating. The EXT pin voltage swings between VDD and VSS. If VDD is low, a MOS FET of which the threshold voltage is low enough so that the MOS FET is completely turned on must be used. If VDD is high, the breakdown voltage between the gate and source must be higher by at least several volts. During the step-up operation, voltage VOUT + VF is applied between the drain and source of the MOS FET. So the breakdown voltage between the drain and source should be higher than the VOUT + VF voltage by at least several volts. The total gate capacitance and the on-resistance affect the efficiency. The larger the total gate capacitance becomes and the higher the input voltage becomes, the more the power dissipation for charging and discharging the gate capacitance by switching operation increases, and affects the efficiency at low load current region. If the efficiency at low load is important, select MOS FETs with a small total gate capacitance. In the regions where the load current is high, the efficiency is affected by power dissipation caused by the resistance of the MOS FETs. If the efficiency under heavy load is particularly important in the application, choose MOS FETs which have an on-resistance as low as possible. As for the current rating, select a MOS FET whose maximum continuous drain current rating is higher than IPK. 5. 2 Bipolar (NPN) Type Figures 16 and 17 in " Standard Circuits (2) Using Bipolar Transistors" show sample circuit diagrams using Sanyo Electric Co., Ltd. 2SD1628G for the bipolar transistor (NPN). The driveability for increasing the output current by means of a bipolar transistor depend on the hFE and Rb values of that bipolar transistor. The Rb value is given by the following equation : Rb= VDD 0.7 Ib 0.4 IEXTH Find the necessary base current (Ib) using the hFE value of the bipolar transistor by the equation, Ib IPK/hFE, and select a smaller Rb value. A small Rb value can increase the output current, but the efficiency decreases. A current may flow as the pulses or voltage drops take place due to the wiring resistance or some other reason. Determine an optimum value through experimentation. In addition, if a speed-up capacitor (Cb) is inserted in parallel with the resistance (Rb) as shown in Figures 16 and 17, the switching loss will be reduced, leading to a higher efficiency. Select a Cb value by using the following equation as a guide : Cb 1 2 Rb fosc 0.1 However, the optimum Cb value differs depending upon the characteristics of the bipolar transistor. Select a Cb value after performing a thorough evaluation. 23 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Standard Circuit (1) Using MOS FET L SD Phase com pensation circuit Triangular w ave oscillation circuit IC internal power supply PW M comparator EXT V IN V OUT VDD VO UT CC Nch Power MOS FET R1 RS Error am plifier CL CS SENSE PW M , PW M/PFM sw itching control circuit 120 mV R SENSE Shutdown circuit R2 VSS VREF =1.0 V Soft-start circuit Voltage/current reference CVREF CSS C SS ON/OFF C VREF Single ground Figure 14 Output Voltage Fixed Output Type L SD Phase com pensation circuit Triangular w ave oscillation circuit V IN Nch Power MOS FET IC internal pow er supply C FB RS SENSE R SENSE PW M comparator EXT V OUT VDD Error am plifier PW M, PW M/PFM switching control circuit 120 mV Voltage/current reference Soft-start circuit VSS CVREF CSS ON/OFF R FB2 VREF =1.0 V C SS C VREF Single ground Figure 15 CL CS Shutdown circuit 24 R FB1 FB Output Voltage External Setting Type STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (2) Using Bipolar Transistor L SD NPN Bipolar Transistor IC internal power supply PW M comparator EXT V IN Phase com pensation circuit Triangular w ave oscillation circuit Cb V OUT VDD VO UT CC Rb R1 RS CL Error am plifier SENSE CS PW M, PW M/PFM switching control circuit 120 mV R SENSE Shutdown circuit R2 VSS VREF =1.0 V Soft-start circuit Voltage/current reference CVREF CSS C SS O N/O FF C VREF Single ground Figure 16 Output Voltage Fixed Output Type L SD PW M comparator IC internal pow er supply EXT V IN NPN Bipolar Transistor Phase com pensation circuit Triangular w ave oscillation circuit Cb Rb C FB RS Error am plifier SENSE R SENSE V OUT VDD CS 120 mV Shutdown circuit PW M, PW M/PFM switching control circuit CL VSS CVREF CSS ON/OFF R FB2 VREF =1.0 V Voltage/current reference Soft-start circuit R FB1 FB C SS C VREF Single ground Figure 17 Output Voltage External Setting Type Caution The above connection and constant will not guarantee successful operation. evaluation using the actual application to set the constant. Perform thorough 25 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Precautions Mount the external capacitors, diode, coil, and other peripheral parts as close to the IC as possible, and make a onepoint grounding. Characteristic ripple voltage and spike noise occur in IC containing switching regulators. Moreover rush current flows at the time of a power supply injection. Because these largely depend on the coil, the capacitor and impedance of power supply used, fully check them using an actually mounted model. Make sure that dissipation of the switching transistor especially at high temperature will not surpass the power dissipation of the package. To stabilize operation, use a capacitor with a low ESR as a bypass capacitor between the VDD and VSS pins of the IC, and install and wire it with a short distance and a low impedance. Connect CVREF to the VSS pin. The main circuit of the IC operates on the internal power supply connected to the CVREF pin. CVREF is a bypass capacitor that stabilizes the internal power supply. Use a 0.01 to 1 F ceramic capacitor as CVREF and install and wire it to assure a short distance and a low impedance. Switching regulator performance varies depending on the design of PC patterns, peripheral circuits and parts. Thoroughly evaluate the actual device when setting. When using parts other than those which are recommended, contact the ABLIC Inc. marketing department. Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement by products including this IC of patents owned by a third party. 26 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Characteristics 1. Examples of Major Characteristics (Typical Data) (1) Current Consumption 1 (ISS1) vs. Supply Voltage (VDD) S-8340C33A (f OSC : 300 kHz) S-8340A33A (fOSC : 600 kHz) 1000 600 85C 500 25C 600 I SS1 (A) I SS1 (A) 800 400 Ta 40C 200 0 2.5 85C 25C 400 300 200 Ta 40C 100 3.0 3.5 4.0 4.5 5.0 5.5 0 2.5 6.0 3.0 3.5 4.0 4.5 VD D (V) VD D (V) 5.0 5.5 6.0 5.0 5.5 6.0 5.5 6.0 (2) Current Consumption 2 (ISS2) vs. Supply Voltage (VDD) S-8340A33A (fOSC : 600 kHz) S-8340C33A (f OSC : 300 kHz) 300 300 85C 250 250 200 ISS2 (A) ISS2 (A) 200 150 100 Ta 40C 25C 50 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 85C 25C 150 100 50 Ta 40C 0 2.5 6.0 3.0 3.5 4.0 V DD (V) 4.5 V DD (V) (3) Current Consumption at Shutdown (ISSS) vs. Supply Voltage (VDD) S-8340A33A (f OSC : 600 kHz) / S-8340C33A (f OSC : 300 kHz) 1.0 85C I SSS (A) 0.8 25C Ta 40C 0.6 0.4 0.2 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 VDD (V) (4) Oscillation Frequency (fOSC) vs. Supply Voltage (VDD) S-8340A33A (fOSC : 600 kHz) S-8340C33A (f OSC : 300 kHz) 400 85C 700 600 Ta 40C fOSC (kHz) fOSC (kHz) 800 25C 500 400 2.5 3.0 3.5 4.0 4.5 VD D (V) 5.0 5.5 6.0 85C 350 300 Ta 40C 25C 250 200 2.5 3.0 3.5 4.0 4.5 5.0 VD D (V) 27 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (5) EXT Pin Output Current "H" (IEXTH) vs. Supply Voltage (VDD) (6) EXT Pin Output Current "L" (IEXTL) vs. Supply Voltage (VDD) S-8340A33A (f OSC : 600 kHz ) / S-8340C33A (f OSC : 300 kHz) S-8340A33A (f OSC : 600 kHz ) / S-8340C33A (f OSC : 300 kHz) 60 140 Ta 40C 40 30 20 10 Ta 40C 120 25C IEXTL (mA) I EXTH (mA) 50 85C 100 80 60 40 25C 20 85C 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 6.0 3.0 3.5 4.0 VD D (V) 4.5 5.0 5.5 6.0 5.5 6.0 VDD (V) (7) Soft-Start Time (tSS) vs. Supply Voltage (VDD) S-8340A33A (f OSC : 600 kHz) S-8340C33A (fOSC : 300 kHz) 20 40 Ta 40C Ta 40C 30 tSS (ms) tSS (ms) 15 10 5 20 10 25C 85C 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 2.5 3.0 3.5 VD D (V) 4.0 4.5 5.0 VD D (V) (8) ON/OFF Pin Input Voltage "H" (VSH) vs. Supply Voltage (VDD) S-8340A33A (f OSC : 600 kH z) / S-8340C 33A (f OSC : 300 kHz ) (9) ON/OFF Pin Input Voltage "L" (VSL) vs. Supply Voltage (VDD) S-8340A33A (f OSC : 600 kHz) / S-8340C33A (fOSC : 300 kHz) 1.0 1.0 85C 0.8 0.8 25C 0.6 0.4 VSL (V) VSH (V) 85C 25C 0 Ta 40C 0.6 0.4 0.2 0.2 0.0 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Ta 40C 2.5 6.0 85C 25C 3.0 3.5 VDD (V) 4.0 4.5 5.0 5.5 6.0 VDD (V) (10) Output Voltage (VOUT) vs. Supply Voltage (VDD) S-8340A25A (f OSC : 600 kHz) / S-8340C25A (fOSC : 300 kHz) 2.54 25C 3.34 85C 3.32 2.50 VOUT (V) VOUT (V) 2.52 2.48 2.46 Ta 40C 2.44 2.42 25C 85C 3.30 3.28 3.26 3.24 Ta 40C 3.22 2.40 3.20 2.5 3.0 3.5 4.0 4.5 VDD (V) 28 S-8340A33A (f OSC : 600 kHz ) / S-8340C33A (f OSC : 300 kHz) 5.0 5.5 6.0 2.5 3.0 3.5 4.0 4.5 VDD (V) 5.0 5.5 6.0 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series S-8340A50A (f OSC : 600 kHz) / S-8340C50A (fOSC : 300 kHz) 5.04 25C VOUT (V) 5.02 85C 5.00 4.98 4.96 4.94 4.92 Ta 40C 4.90 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 VDD (V) (11) Oscillation Start Voltage (VST) vs. Temperature (Ta) (12) Maximum Duty Ratio (MaxDuty) vs. Supply Voltage (VDD) S-8340A33A (fOSC : 600 kHz) / S-8340C33A (f OSC : 300 kH z) 1.0 85 0.9 84 MaxDuty (%) VST (V) S-8340A33A (f OSC : 600 kHz) / S-8340C33A (fOSC : 300 kHz) 0.8 0.7 0.6 81 80 0.4 79 20 0 20 40 60 85C 82 0.5 40 25C 83 Ta 40C 2.5 80 3.0 3.5 Ta (C) 4.0 4.5 5.0 5.5 6.0 VD D (V) (13) PWM/PFM Switching Duty Ratio (PFMDuty) vs. Supply Voltage (VDD) S-8341A33A (f OSC : 600 kHz) S-8341C33A (fOS C : 300 kHz ) 24 25C 29 85C PFMDuty (%) PFMDuty (%) 30 28 27 26 Ta 40C 25 23 25C 22 21 20 19 24 85C Ta 40C 18 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 2.5 VD D (V) 3.0 3.5 4.0 4.5 5.0 5.5 6.0 V D D (V) (14) Current Limit Detection Ratio (VSENSE) vs. Supply Voltage (VDD) S-8340A33A (f OSC : 600 kHz ) / S-8340C33A (f OSC : 300 kHz) 135 25C VSENSE (mV) 130 85C 125 120 115 Ta 40C 110 105 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 VDD (V) 29 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 2. Examples of Transient Response Characteristics (1) Power-on (Typical Data) S-8340A33AFT, fOSC = 600 kHz, Ta = 25C VIN = 0 1.98 V, IOUT = 1 mA 3V VIN (1 V/div) 0V 3V VIN (1 V/div) 0V V OUT (1 V/div) VIN = 0 1.98 V, IOUT = 200 mA 3V V OUT (1 V/div) 0V 3V 0V t (2 ms/div) t (2 ms/div) S-8340C33AFT, fOSC = 300 kHz, Ta = 25C VIN = 0 1.98 V, IOUT = 1 mA I 3V VIN (1 V/div) 0V V OUT (1 V/div) VIN = 0 1.98 V, IOUT = 200 mA 3V VIN (1 V/div) 0V 3V V OUT (1 V/div) 0V 3V 0V t (4 ms/div) t (4 ms/div) (2) ON/OFF Pin Response (Typical Data) S-8340A33AFT, fOSC = 600 kHz, Ta = 25C VON /OFF 0 1.98 V, IOUT = 200 mA VON/OFF 0 1.98 V, IOU T = 1 mA 3V VON/OFF (1 V/div) 0V 3V VON/OFF (1 V/div) 0V V OUT (1 V/div) 3V V OUT (1 V/div) 3V 0V 0V t (2 ms/div) t (2 ms/div) S-8340C33AFT, fOSC = 300 kHz, Ta = 25C VON/OFF 0 1.98 V, IOU T = 1 mA VON/OFF 0 1.98 V, IOU T = 200 mA 3V VON/OFF (1 V/div) 0V VON/OFF (1 V/div) 3V 3V V OUT (1 V/div) 0V V OUT (1 V/div) 3V 0V t (4 ms/div) 30 0V t (4 ms/div) STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (3) Load Fluctuations S-8340A33AFT, fOSC = 600 kHz S-8340C33AFT, fOSC = 300 kHz VIN = 1.98 V, IOUT = 100 mA 100 A 100 mA IOUT 100 A VIN = 1.98 V, IOUT = 100 mA 100 A 100 mA IOUT 100 A V OUT (0.02 V/div) VOUT (0.02 V/div) t (4 ms/div) S-8340A33AFT, fOSC = 600 kHz t (4 ms/div) S-8340C33AFT, fOSC = 300 kHz VIN = 1.98 V, IOUT = 100 A 100 mA VIN = 1.98 V, IOUT = 100 A 100 mA 100 mA IOUT 100 A 100 mA IOUT 100 A V OUT (0.02 V/div) VOUT (0.02 V/div) t (0.2 ms/div) t (0.2 ms/div) (4) Input Voltage Fluctuations S-8340A33AFT, fOSC = 600 kHz VIN = 1.98 2.64 V, IOUT = 100 mA S-8340C33AFT, fOSC = 300 kHz VIN = 1.98 2.64 V, IOUT = 100 mA 66 2.64 V VIN (0.3 V/div) 1.98 V VIN 2.64 V (0.4 V/div) 1.98 V V OUT (0.02 V/div) VOUT (0.02 V/div) t (0.2 ms/div) S-8340A33AFT, fOSC = 600 kHz t (0.2 ms/div) S-8340C33AFT, fOSC = 300 kHz VIN = 2.64 1.98 V, IOUT = 100 mA VIN = 2.64 1.98 V, IOUT = 100 mA VIN 2.64 V (0.4 V/div) 1.98 V VIN 2.64 V (0.3 V/div) 1.98 V VOUT (0.02 V/div) VOUT (0.02 V/div) t (0.2 ms/div) t (0.2 ms/div) 31 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Reference Data Reference data are intended for use in selecting external parts to the IC. The information therefore provides characteristic data in which external parts are selected with a view of wide variety of IC applications. All data shows typical value. 1. External Parts for Reference Data Table 10 No. (1) External Parts List for Output Current vs. Efficiency, Output Current vs. Output Voltage Characteristics Data for A Type Product Output Name Voltage S-8340A25AFT 2.5 V (2) (3) S-8341A25AFT (4) (5) S-8340A33AFT 3.3 V (6) (7) S-8341A33AFT (8) (9) S-8340A50AFT 5.0 V (10) (11) S-8341A50AFT (12) Diode Output Capacitor Sense Inductor Transistor CDRH5D18/4.1 H NDS335N RB491D F920J476MB3 1 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *2 CDRH5D18/4.1 H NDS335N RB491D F920J476MB3 1 *1 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *2 CDRH5D18/4.1 H NDS335N RB491D F920J476MB3 1 *1 CDRH124/10 H FTS2001 RBO81L-20 F951C476MG1 2 *2 CDRH5D18/4.1 H NDS335N RB491D F920J476MB3 1 *1 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *2 CDRH5D18/4.1 H NDS335N RB491D F951A476MF1 1 *1 Resistor 0 Application *1 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *2 CDRH5D18/4.1 H NDS335N RB491D F951A476MF1 1 *1 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *2 *1. CDRH5D18 + NDS335N + RB491D: For small and thin parts of which height is 2 mm or shorter (The maximum current of an external part should be set to 1.7 A.) *2. CDRH124 + FTS2001 + RBO81L-20: For heavy load current (The maximum current of an external part should be set to 4.5 A.) Table 11 No. (13) External Parts List for Output Current vs. Efficiency, Output Current vs. Output Voltage Characteristics Data for C Type Product Output Name Voltage S-8340C25AFT 2.5 V (14) (15) S-8341C25AFT (16) (17) S-8340C33AFT 3.3 V (18) (19) S-8341C33AFT (20) (21) S-8340C50AFT (22) (23) (24) S-8341C50AFT 5.0 V Transistor Diode Output Capacitor CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *4 CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 *3 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *4 CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 *3 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *4 CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 *3 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *4 CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 *3 Resistor 0 Application *3 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *4 CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 *3 CDRH124/10 H FTS2001 RBO81L20 F951C476MG1 2 *4 *3. CDRH6D28 + FDN335N + RB491D: For part height of 3 mm and high efficiency *4. CDRH124 + FTS2001 + RBO81L-20: For optimizing the load current driveability 32 Sense Inductor STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Table 12 Product Output Name Voltage S-8341A25AFT 2.5 V No. (25) External Parts List for Output Current vs. PFM/PWM Switching Input Voltage Characteristics Data for A Type (26) (27) S-8341A33AFT 3.3 V (28) (29) S-8341A50AFT 5.0 V (30) Diode Output Capacitor Sense Inductor Transistor CDRH5D18/4.1 H NDS335N RB491D F920J476MB3 1 CDRH124/10 H FTS2001 RBO81L-20 F951C476MG1 2 CDRH5D18/4.1 H NDS335N RB491D F920J476MB3 1 *1 CDRH124/10 H FTS2001 RBO81L-20 F951C476MG1 2 *2 CDRH5D18/4.1 H NDS335N RB491D F951A476MF1 1 *1 CDRH124/10 H FTS2001 RBO81L-20 F951C476MG1 2 *2 Resistor 0 Application *1 *2 *1. CDRH5D18 + NDS335N + RB491D: For small and thin parts of which height is 2 mm or shorter (The maximum current of an external part should be set to 1.7 A.) *2. CDRH124 + FTS2001 + RBO81L-20: For heavy load current (The maximum current of an external part should be set to 4.5 A.) Table 13 No. (31) External Parts List for Output Current vs. PFM/PWM Switching Input Voltage Characteristics Data for C Type Product Output Name Voltage S-8341C25AFT 2.5 V (32) (33) S-8341C33AFT 3.3 V (34) (35) (36) S-8341C50AFT 5.0 V Inductor Transistor CDRH6D28/10 H CDRH124/10 H CDRH6D28/10 H CDRH124/10 H Sense Diode Output Capacitor FDN335N RB491D F951C476MG1 1 FTS2001 RBO81L-20 F951C476MG1 2 *4 FDN335N RB491D F951C476MG1 1 *3 FTS2001 RBO81L-20 F951C476MG1 2 *4 CDRH6D28/10 H FDN335N RB491D F951C476MG1 1 *3 CDRH124/10 H FTS2001 RBO81L-20 F951C476MG1 2 *4 Resistor 0 Application *3 *3. CDRH6D28 + FDN335N + RB491D: For part heights of 3 mm and high efficiency *4. CDRH124 + FTS2001 + RBO81L-20: For optimizing the load current driveability 33 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series External Parts List for Ripple Data Table 14 No. (37) External Parts for Output Current vs. Ripple Voltage Characteristics Data for A Type Product Output Name Voltage S-8340A25AFT 2.5 V (38) (39) S-8341A25AFT (40) (41) S-8340A33AFT 3.3 V (42) (43) S-8341A33AFT (44) (45) S-8340A50AFT (46) (47) (48) S-8341A50AFT 5.0 V Inductor Transistor Diode CDRH5D18/4.1 H NDS335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH5D18/4.1 H NDS335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH5D18/4.1 H NDS335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH5D18/4.1 H NDS335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH5D18/4.1 H NDS335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH5D18/4.1 H NDS335N RB491D CDRH124/10 H FTS2001 RBO81L-20 Output Capacitor F920J476MB3 1 F920J476MB3 2 F951C476MG1 2 F951A107MG1 2 F920J476MB3 1 F920J476MB3 2 F951C476MG1 2 F951A107MG1 2 F920J476MB3 1 F920J476MB3 2 F951C476MG1 2 F951A107MG1 2 F920J476MB3 1 F920J476MB3 2 F951C476MG1 2 F951A107MG1 2 F951A476MF1 1 F951A476MF1 2 F951C476MG1 2 F951A107MG1 2 F951A476MF1 1 F951A476MF1 2 F951C476MG1 2 F951A107MG1 2 Sense Resistor 0 Application *1 *2 *1 *2 *1 *2 *1 *2 *1 *2 *1 *2 *1. CDRH5D18 + NDS335N + RB491D: For small and thin parts of which the height is 2 mm or shorter (The maximum current of an external part should be set to 1.7 A.) *2. CDRH124 + FTS2001 + RBO81L-20: For heavy load current (The maximum current of an external part should be set to 4.5 A.) 34 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Table 15 No. (49) External Parts for Output Current vs. Ripple Voltage Characteristics Data for C Type Product Output Name Voltage S-8340C25AFT 2.5 V (50) (51) S-8341C25AFT (52) (53) S-8340C33AFT 3.3 V (54) (55) S-8341C33AFT (56) (57) S-8340C50AFT (58) (59) (60) S-8341C50AFT 5.0 V Inductor Transistor Diode CDRH6D28/10 H FDN335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH6D28/10 H FDN335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH6D28/10 H FDN335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH6D28/10 H FDN335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH6D28/10 H FDN335N RB491D CDRH124/10 H FTS2001 RBO81L-20 CDRH6D28/10 H FDN335N RB491D CDRH124/10 H FTS2001 RBO81L-20 Output Capacitor F951C476MG1 1 F951C476MG1 2 F951C476MG1 2 F951A107MG1 2 F951C476MG1 1 F951C476MG1 2 F951C476MG1 2 F951A107MG1 2 F951C476MG1 1 F951C476MG1 2 F951C476MG1 2 F951A107MG1 2 F951C476MG1 1 F951C476MG1 2 F951C476MG1 2 F951A107MG1 2 F951C476MG1 1 F951C476MG1 2 F951C476MG1 2 F951A107MG1 2 F951C476MG1 1 F951C476MG1 2 F951C476MG1 2 F951A107MG1 2 Sense Resistor 0 Application *3 *4 *3 *4 *3 *4 *3 *4 *3 *4 *3 *4 *3. CDRH6D28 + FDN335N + RB491D: For part heights of 3 mm and high efficiency *4. CDRH124 + FTS2001 + RBO81L-20: For optimizing the load current driveability 35 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series Performance Data for Parts The following shows the performance of external parts. Table 16 Component Product Name Performance of External Parts Manufacturer L Inductor DC resistance Performance Max. Current 4.1 H 0.042 typ. 0.057 max. 1.95 A CDRH124 10 H 0.028 max. 4.5 A CDRH6D28 10 H 0.048 typ. 0.065 max. 1.70 A CDRH5D18 RB491D Diode Sumida Corporation Rohm Corporation Diameter 5.7 mm typ. 6.0 mm max. 12. 0 mm typ. 12.3 mm max. 6.7 mm typ. 7.0 mm max. Height 1.8 mm typ. 2.0 mm max. 4.5 mm max. 3.0 mm max. Forward current 1.0 A @VF = 0.45 V, Vrm 25 V Forward current 5.0 A @VF = 0.45 V, Vrm 25 V RB081L20 47 F, 16 V, 5.5 4.8 2.3 mm max., ESR = 0.08 (nominal value) 47 F, 10 V, 5.5 4.8 2.0 mm max., F951A476MF1 ESR = 0.1 (nominal value) 47 F, 6.3 V, 3.6 3 1.2 mm max., F920J476MB3 ESR = 0.27 (nominal value) 100 F, 10 V, 5.5 4.8 2.3 mm max., F951A107MG1 ESR = 0.08 (nominal value) VDSS = 20 V max., VGSS = 8 V max., ID = 1.7 A max., External Fairchild transistor Vth = 0.5 V to 1 V, Ciss = 240 pF typ., Semiconductor NDS335N*1 (N-channel Corporation RDS(ON) = 0.14 max.(VGS = 2.7 V), SOT-23-3 package or FET) equivalent VDSS = 20 V max., VGSS = 8 V max., ID = 1.7 A max., Vth = 0.4 V to 1.5 V, Ciss = 310 pF typ., FDN335N RDS(ON) = 0.10 max.(VGS = 2.5 V), SOT-23-3 package or equivalent VDSS = 20 V max., VGSS = 8 V max., ID = 5 A max., Sanyo Electric FTS2001 Vth = 0.4 V to 1.3 V, Ciss = 750 pF typ., Co., Ltd. RDS(ON) = 0.046 max.(VGS = 2.5 V), 8-Pin TSSOP package *1. The manufacturer recommends the FDN335N as an alternative for the NDS335N. Capacitor (output capacitance) (tantalum electrolytic capacitor) Caution 36 F951C476MG1 Nichicon Corporation The value of each characteristic in Table 16 depends on the materials prepared by each manufacturer, however, confirm the specifications by referring to respective materials when using any of the above. STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 2. Output Current (IOUT) vs. Efficiency () Characteristics The following shows the actual output current (IOUT) vs. efficiency () characteristics when the S-8340/8341 Series is used under conditions (1) to (24) in Tables 10 and 11. (1) S-8340A25AFT (CDRH5D18/4.1 NDS335N) H, (CDRH5D18/4.1 H, NDS335N) VIN 1.2 V I N=1.2V 0.1 1 10 IOUT(mA) (mA) IOUT (%) (%) 1.8V 1.5V 100 (3) S-8341A25AFT 1.8V VVINI N 1.2 V =1.2V 1 10 IOUT(mA) (mA) IOUT 1.5V 100 =1.2V VINVI N1.2 V 10 IOUT IOUT(mA) (mA) 1.8V 100 VINVIN=1.5V 1.5 V 1 10 100 IIOUT (mA) OUT (mA) 1.8V 1000 10000 1000 10000 1000 10000 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 3.0V VI N=1.5V VIN 1.5 V 1.8V 1 10 100 IOUT (mA) (mA) (8) S-8341A33AFT (%) (%) (%) (%) 10000 2.4V 0.1 3.0V VVI N=1.2V IN 1.2 V 1.8V 1 1000 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 60 50 40 30 20 1000 (CDRH5D18/4.1 H, NDS335N) (CDRH5D18/4.1 H,NDS335N) 0.1 100 90 80 70 100 90 80 70 60 50 40 30 20 (7) S-8341A33AFT 60 50 40 30 20 10 100 (mA) IOUT (mA) (%) (%) (%) (%) 60 50 40 30 20 100 90 80 70 1 (6) S-8340A33AFT 3.0V 1 V 1.5 V VIN I N=1.5V 0.1 (CDRH5D18/4.1 NDS335N) H, (CDRH5D18/4.1 H, NDS335N) 0.1 1.8V 60 50 40 30 20 1000 (5) S-8340A33AFT 100 90 80 70 2.4V 0.1 (CDRH5D18/4.1 NDS335N) H, (CDRH5D18/4.1 H, NDS335N) 0.1 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) (4) S-8341A25AFT (%) (%) 100 90 80 70 60 50 40 30 20 100 90 80 70 1000 %) (%) (%) (%) 100 90 80 70 60 50 40 30 20 (2) S-8340A25AFT 10 IOUT(mA) (mA) IOUT 100 1000 100 90 80 70 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 3.0V 1.8V 60 50 40 30 20 VVINI N=1.5V 1.5 V 0.1 1 10 100 (mA) IOUT (mA) 37 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 100 90 80 70 (10) S-8340A50AFT (CDRH5D18/4.1 H, NDS335N) (CDRH5D18/4.1 H,NDS335N) 100 90 80 4.5V 3.0V 60 50 40 30 20 VIN V 1.8 V I N=1.8V 0.1 1 10 100 IOUT (mA) IOUT (mA) 4.5V 3.0V 1 VVINI N=1.8V 1.8 V 10 IOUT(mA) (mA) IOUT 100 100 90 80 70 60 50 40 30 20 1000 (13) S-8340C25AFT 1 10 IIOUT (mA) OUT (mA) (%) (%) (%) (%) V 1.2 V VIN I N=1.2V 0.1 1.5V 100 100 90 80 70 100 90 80 70 10 IIOUT (mA) OUT (mA) (%) (%) (%) (%) 38 1 10 100 IIOUT (mA) OUT (mA) 1000 10000 (CDRH124/10 FTS2001) (CDRH124/10 H,H, FTS2001) 2.4V 1.8V VIINN=1.5V 1.5 V 1 10 100 1000 10000 (16) S-8341C25AFT VVINI N=1.2V 1.2 V 1 VVINI N=1.8V 1.8 V IOUT (mA) (mA) 1.8V 0.1 10000 3.0V 0.1 (CDRH6D28/10 H, FDN335N) (CDRH6D28/10 H,FDN335N) 60 50 40 30 20 1000 4.5V 60 50 40 30 20 1000 (15) S-8341C25AFT 100 90 80 70 10 100 IOUT (mA) IOUT (mA) (14) S-8340C25AFT 1.8V 60 50 40 30 20 1 (CDRH124/10 H, FTS2001) (CDRH124/10 H,FTS2001) 0.1 (CDRH6D28/10 FDN335N) (CDRH6D28/10 H,H, FDN335N) 100 90 80 70 =1.8V VVINI N 1.8 V (12) S-8341A50AFT (CDRH5D18/4.1 H,NDS335N) (CDRH5D18/4.1 H, NDS335N) 0.1 3.0V 0.1 (%) (%) (%) (%) 100 90 80 70 60 50 40 30 20 4.5V 50 40 30 20 1000 (11) S-8341A50AFT (CDRH124/10 FTS2001) (CDRH124/10 H,H, FTS2001) 70 60 (%) (%) (%) (%) (9) S-8340A50AFT 1.5V 100 1000 (CDRH124/10 H, FTS2001) (CDRH124/10 H,FTS2001) 2.4V 1.8V 60 50 40 30 20 V 1.5 V VIN I N=1.5V 0.1 1 10 100 IIOUT (mA) OUT (mA) 1000 10000 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (17) S-8340C33AFT (18) S-8340C33AFT 100 90 80 70 60 50 40 30 20 (CDRH6D28/10 H, FDNS335N) 100 90 80 70 60 50 40 30 20 3.0V V 1.2 V VIN I N=1.2V 0.1 1 10 1.8V 100 IOUT (mA) OUT (mA) (%) (%) (%) (%) (CDRH6D28/10H, FDN335N) 1000 V 1.2 V VINI N=1.2V 1 10 1.8V 100 IIOUT (mA) OUT (mA) (%) (%) (%) (%) 60 50 40 30 20 3.0V 1.8V VVINI N=1.5V 1.5 V 1 10 100 1000 10000 (CDRH124/10 H, FTS2001) 4.5V 3.0V VVINI N=1.8V 1.8 V 1 10 100 (mA) IIOUT OUT(mA) (%) (%) (%) (%) 10000 (22) S-8340C50AFT 100 90 80 70 (CDRH124/10 H,FTS2001) 4.5V 3.0V 60 50 40 30 20 1000 =1.8V VVINI N 1.8 V 0.1 1 10 100 1000 10000 IOUT(mA) (mA) IOUT (23) S-8341C50AFT (24) S-8341C50AFT (CDRH6D28/10 H, FDN335N) (CDRH6D28/10 H, FDN335N) 4.5V VINVIN=1.8V 1.8 V 10 IIOUT (mA) OUT (mA) 100 (%) (%) (%) (%) 1000 IOUT IOUT(mA) (mA) (CDRH6D28/10H, FDN335N) 1 100 (CDRH124/10 H, FTS2001) 0.1 (CDRH6D28/10 H, FDN335N) 0.1 10 60 50 40 30 20 1000 (21) S-8340C50AFT 100 90 80 70 60 50 40 30 20 1 (CDRH124/10 H, FTS2001) 100 90 80 70 3.0V 0.1 VVINI N=1.5V 1.5 V (20) S-8341C33AFT (CDRH6D28/10H, FDN335N) 100 90 80 70 60 50 40 30 20 1.8V 0.1 (CDRH6D28/10 H, FDN335N) 0.1 3.0V IOUT (mA) (mA) (19) S-8341C33AFT 100 90 80 70 (CDRH124/10H, FTS2001) (CDRH124/10 H, FTS2001) 3.0V 1000 100 90 80 70 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 4.5V 3.0V 60 50 40 30 20 VVINI N=1.8V 1.8 V 0.1 1 10 100 IOUT (mA) (mA) 1000 10000 39 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 3. Output Current (IOUT) vs. Output Voltage (VOUT) Characteristics The following shows the actual output current (IOUT) vs. output voltage (VOUT) characteristics when the S-8340/8341 Series is used under conditions (1) to (24) in Tables 10 and 11. (1) S-8340A25AFT (CDRH5D18/4.1 H, NDS335N) (CDRH5D18/4.1 H,NDS335N) 2.54 2.52 2.50 1.5V VVINI N=1.2V 1.2 V 2.48 2.46 2.60 2.58 VVINI N=1.5V 1.5 V (V) 2.58 2.56 2.56 2.54 2.52 2.50 1.8V 2.48 2.46 1.8V 0.1 1 10 100 (CDRH124/10 H, FTS2001) (CDRH124/10 FTS2001) H, V 2.62 VOUT (V) V VOUT (V) (V) 2.62 2.60 (2) S-8340A25AFT 1000 2.4V 0.1 1 IOUT IOUT(mA) (mA) (3) S-8341A25AFT (CDRH5D18/4.1 H,H, NDS335N) (CDRH5D18/4.1 NDS335N) 2.62 (V) 1.5V VVINI N=1.2V 1.2 V 2.56 2.54 2.52 2.50 1.8V 2.48 2.46 1 10 IOUT IOUT(mA) (mA) 100 1000 (5) S-8340A33AFT (CDRH5D18/4.1 H, NDS335N) (CDRH5D18/4.1 H,NDS335N) 3.60 3.45 3.40 3.35 3.30 3.0V 3.25 3.20 1 10 IOUT IOUT(mA) (mA) 100 (CDRH5D18/4.1 H,H, NDS335N) (CDRH5D18/4.1 NDS335N) 3.60 VV 1.5 V N=1.5V INI 3.0V 1 10 100 IOUT (mA) OUT (mA) 1000 10000 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 10 IOUT (mA) IOUT (mA) 100 3.45 3.40 3.35 3.30 1.8V VVINI N=1.5V 1.5 V 3.25 3.20 3.0V 1 (V) 1.8V V VVINI N=1.2V 1.2 V 3.25 3.20 40 1.8V 3.55 3.50 0.1 1000 (8) S-8341A33AFT VOUT (V) (V) V VVOUT (V) OUT(V) 3.35 3.30 100 (CDRH124/10 H, FTS2001) (CDRH124/10 H,FTS2001) 0.1 1000 3.55 3.50 3.45 3.40 10 IOUT IOUT(mA) (mA) 3.25 3.20 (7) S-8341A33AFT 3.60 (V) 1.8V VVINI N=1.2V 1.2 V 0.1 1 3.55 3.50 V (V) V VOUT (V) 3.35 3.30 2.4V (6) S-8340A33AFT 3.55 3.50 3.45 3.40 N=1.5V VV 1.5 V INI 0.1 VOUT (V) 3.60 1.8V 2.48 2.46 0.1 1000 (CDRH124/10 H, FTS2001) (CDRH124/10 FTS2001) H, 2.60 2.58 V (V) 2.52 2.50 VOUT (V) V 2.60 2.58 2.56 2.54 100 (4) S-8341A25AFT VOUT (V) 2.62 10 IOUT(mA) (mA) IOUT 1000 3.0V 0.1 1 10 100 IOUT IOUT(mA) (mA) 1000 10000 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (9) S-8340A50AFT (CDRH5D18/4.1 NDS335N) (CDRH5D18/4.1 H,H, NDS335N) 5.20 5.15 5.30 5.25 3.0V VVINI N=1.8V 1.8 V 5.10 5.05 5.00 4.95 VOUT V (V)(V) VOUT V (V) (V) 5.30 5.25 (10) S-8340A50AFT 4.5V 4.90 (CDRH124/10 FTS2001) (CDRH124/10 H,H, FTS2001) 5.10 5.05 4.5V 5.00 4.95 4.90 0.1 1 10 100 1000 0.1 1 10 IIOUT (mA) OUT (mA) 3.0V 5.00 4.95 VOUT V (V)(V) VOUT V (V)(V) 5.30 5.25 VVINI N=1.8V 1.8 V 5.10 5.05 4.5V 0.1 (CDRH124/10 H,H, FTS2001) (CDRH124/10 FTS2001) 3.0V 5.20 5.15 VIN 1.8 V VI N=1.8V 5.10 5.05 5.00 4.95 4.5V 1 10 100 0.1 1000 1 10 (13) S-8340C25AFT 1.5V IN 1.8V 2.48 2.46 0.1 1 10 100 1.8V VVIN =1.5V 1.5 V 2.56 2.54 IN 2.52 2.50 2.48 2.46 1000 2.4V 0.1 1 IIOUT (mA) OUT (mA) (CDRH6D28/10 H, FDN335N) (CDRH6D28/10 H,FDNS335N) 2.62 2.48 2.46 10 IIOUT (mA) OUT (mA) 100 2.56 2.54 2.52 2.50 1.8V VVINI N=1.5V 1.5 V 2.48 2.46 1.8V 1 (V) 1.5V V V 1.2 V VINI N=1.2V 0.1 1000 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 2.60 2.58 2.54 2.52 2.50 100 (16) S-8341C25AFT VOUT (V) (V) V VOUT (V) 10 IOUT (mA) IOUT (mA) (15) S-8341C25AFT 2.58 2.56 10000 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 2.60 2.58 VOUT V (V) (V) VOUT V (V) (V) 2.62 VINV 1.2 V =1.2V 2.54 2.52 2.50 1000 (14) S-8340C25AFT (CDRH6D28/10 H, FDN335N) (CDRH6D28/10 H,FDNS335N) 2.58 2.56 100 IOUT (mA) IOUT (mA) IIOUT (mA) OUT(mA) 2.62 2.60 10000 4.90 4.90 2.62 2.60 1000 (12) S-8341A50AFT (CDRH5D18/4.1 NDS335N) (CDRH5D18/4.1 H,H, NDS335N) 5.20 5.15 100 IOUT (mA) IOUT (mA) (11) S-8341A50AFT 5.30 5.25 3.0V VIINN=1.8V 1.8 V V 5.20 5.15 1000 2.4V 0.1 1 10 100 1000 IOUT(mA) (mA) IOUT 41 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (17) S-8340C33AFT (CDRH6D28/10 H, FDN335N) (CDRH6D28/10 H,FDN335N) 3.60 1.8V VV 1.2 V IN =1.2V IN (V) 3.45 3.40 3.35 3.30 3.45 3.40 3.35 3.30 3.0V 3.25 3.20 0.1 1 10 (CDRH124/10 H, FTS2001) (CDRH124/10 H,FTS2001) 3.55 3.50 VOUT (V) VOUT V (V)(V) 3.55 3.50 V 3.60 (18) S-8340C33AFT 1.8V VIN 1.5 V V =1.5V IN 3.0V 3.25 3.20 100 0.1 1000 1 (19) S-8341C33AFT 3.60 (CDRH6D28/10 H, FDN335N) (CDRH6D28/10 H,FDN335N) 3.60 (V) IN 3.25 3.20 3.45 3.40 V 1.8V VVIN =1.2V 1.2 V 3.35 3.30 1 10 VVINI N=1.5V 1.5 V 100 3.0V 0.1 1000 1 (21) S-8340C50AFT 4.5V 5.00 4.95 V 3.0V (V) 5.30 5.25 VOUT (V) (V) V VOUT (V) VVINI N=1.8V 1.8 V 5.10 5.05 4.90 1 10 IIOUT (mA) OUT (mA) 100 V 1.8 V VINI N=1.8V 3.0V 4.5V 5.10 5.05 5.00 4.95 0.1 1 10 100 1000 10000 IOUT (mA) IOUT (mA) (24) S-8341C50AFT (CDRH6D28/10 FDN335N) H, (CDRH6D28/10 H, FDN335N) 5.20 5.15 5.30 5.25 (V) 3.0V VVINI N=1.8V 1.8 V V 5.10 5.05 VOUT (V) (V) V VOUT (V) 10000 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 5.20 5.15 1000 (23) S-8341C50AFT 5.00 4.95 4.5V 4.90 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 5.20 5.15 3.0V VVINI N=1.8V 1.8 V 5.10 5.05 5.00 4.95 4.5V 4.90 0.1 42 1000 4.90 0.1 5.30 5.25 100 (22) S-8340C50AFT (CDRH6D28/10 FDN335N) (CDRH6D28/10 H, FDN335N) H, 5.20 5.15 10 IIOUT (mA) OUT (mA) IOUT IOUT(mA) (mA) 5.30 5.25 10000 1.8V 3.25 3.20 3.0V 0.1 1000 (CDRH124/10 H, FTS2001) (CDRH124/10 H,FTS2001) 3.55 3.50 VOUT (V) (V) V VOUT (V) 3.35 3.30 100 (20) S-8341C33AFT 3.55 3.50 3.45 3.40 10 IOUT (mA) IOUT (mA) IOUT IOUT(mA) (mA) 1 10 IIOUT (mA) OUT (mA) 100 1000 0.1 1 10 IOUT (mA) OUT(mA) 100 1000 10000 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 4. Output Current (IOUT) vs. PFM/PWM Switching Input Voltage (VIN) Characteristics The following shows the actual output current (IOUT) vs. PFM/PWM switching input voltage (VIN) characteristics when the S-8341 Series is used under conditions (25) to (36) in Tables 12 and 13. (25) S-8341A25AFT 3.5 3.0 VIN (V) 1.5 PW M 1.0 2.0 1.5 0.5 0.0 0.0 10 100 1000 1 IIOUT (mA) OUT (mA) (27) S-8341A33AFT 1.5 PW M 1.0 0.5 10 100 IOUT IOUT(mA) (mA) 1 10 100 IOUT IOUT(mA) (mA) 1000 (30) S-8341A50AFT (CDRH5D18/4.1 NDS335N) (CDRH5D18/4.1 H,H, NDS335N) 4.0 5.0 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 4.0 PFM 3.0 PFM 3.0 2.0 VIN (V) V (V) V VIN (V) (V) 1.0 1000 (29) S-8341A50AFT PW M 1.0 2.0 PW M 1.0 0.0 0.0 0.1 1 10 IOUT IOUT(mA) (mA) 100 1000 (31) S-8341C25AFT 1 3.5 1000 (CDRH124/10 FTS2001) H, (CDRH124/10 H, FTS2001) 3.0 PFM 2.5 10 100 IOUT IOUT(mA) (mA) (32) S-8341C25AFT (CDRH6D28/10 FDN335N) H, (CDRH6D28/10 H, NDS335N) 3.0 PFM 2.5 2.0 VIN (V) V (V) 2.0 VIN (V) PW M 1.5 0.0 1 V (V) 2.0 0.5 0.0 3.5 PFM 2.5 2.0 5.0 100 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 3.0 (V) V VIN(V) (V) V VIN(V) 3.5 PFM 2.5 10 IOUT IOUT(mA) (mA) (28) S-8341A33AFT (CDRH5D18/4.1 NDS335N) H, (CDRH5D18/4.1 H, NDS335N) 3.0 PW M 1.0 0.5 3.5 PFM 2.5 2.0 1 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 3.0 V (V) VIN (V) 3.5 PFM 2.5 V (V) (26) S-8341A25AFT (CDRH5D18/4.1 NDS335N) H, (CDRH5D18/4.1 H, NDS335N) 1.5 PW M 1.0 1.5 PW M 1.0 0.5 0.5 0.0 0.0 1 10 IOUT IOUT(mA) (mA) 100 1 10 IOUT(mA) (mA) IOUT 100 43 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (33) S-8341C33AFT 3.5 3.0 VIN (V) 1.5 PW M 1.0 0.5 2.0 1.5 0.0 1 10 100 1000 1 IIOUT (mA) OUT(mA) (35) S-8341C50AFT 5.0 100 (CDRH124/10 FTS2001) (CDRH124/10 H, H,FTS2001) 4.0 PFM 3.0 PFM 2.0 V (V) 3.0 IN V (V) V (V) 10 IOUT (mA) IOUT (mA) (36) S-8341C50AFT (CDRH6D28/10 FDN335N) H, (CDRH6D28/10 H, FDN335N) 4.0 IN V (V) PW M 1.0 0.5 0.0 PW M 1.0 2.0 PW M 1.0 0.0 0.0 1 10 100 IIOUT (mA) OUT (mA) 44 PFM 2.5 2.0 5.0 (CDRH124/10 FTS2001) (CDRH124/10 H, FTS2001) H, 3.0 V (V) V (V) 3.5 PFM 2.5 IN V (V) (34) S-8341C33AFT (CDRH6D28/10 FDN335N) H, (CDRH6D28/10 H, FDN335N) 1000 1 10 100 IIOUT (mA) OUT (mA) 1000 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series 5. Output Current (IOUT) vs. Ripple Voltage (Ripple) Characteristics The following shows the actual output current (IOUT) vs. ripple voltage (Ripple) characteristics when the S-8340/8341 Series is used under conditions (37) to (60) in Tables 14 and 15. (37) S-8340A25AFT 300 (CDRH5D18/4.1 H,H, NDS335N, 47 F) F) (CDRH5D18/4.1 NDS335N,47 Ripple (mV) 200 1.5V 150 100 50 (CDRH5D18/4.1 H,NDS335N, 47 F 2) H,NDS335N,47 F2) (CDRH5D18/4.1 250 VVININ=1.2V 1.2 V Ripple(mV) Ripple (mV) Ripple(mV) 250 300 1.8V 200 1.5V 150 100 VINVIN1.2 V =1.2V 50 1.8V 0 0 1 10 IOUT IOUT(mA) (mA) 100 1 1000 10 IOUT(mA) (mA) IOUT 100 1000 (38) S-8340A25AFT (CDRH124/10 H, FTS2000, 47 F F 2) 2) (CDRH124/10 H,FTS2001,47 2.4V 400 1.8V 300 (CDRH124/10H, (CDRH5D18/4.1 NDS335N, 47 FF 2)2) H,FTS2001,100 500 VVINI N=1.5V 1.5 V Ripple (mV) Ripple (mV) Ripple(mV) 500 600 Ripple(mV) 600 200 100 0 1.8V 400 300 VIN 1.5 V VI N=1.5V 2.4V 200 100 0 10 100 1000 IOUT IOUT(mA) (mA) 10000 10 100 1000 IOUT (mA) IOUT (mA) 10000 (39) S-8341A25AFT 300 ((CDRH5D18/4.1 CDRH5D18/4.1 H,H, NDS335N, 47 F) F) NDS335N,47 300 250 200 150 Ripple(mV) VINVI N1.2 V =1.2V Ripple (mV) Ripple (mV) Ripple(mV) 250 (CDRH5D18/4.1 H, NDS335N,47 (CDRH5D18/4.1 H,NDS335N, 47 F 2) F 2) 1.5V 100 50 1.8V 0 1.8V 200 1.5V 150 VIN=1.2V VIN 1.2 V 100 50 0 1 10 IOUT (mA) IOUT (mA) IOUT (mA) 100 1000 1 10 IOUT IOUT(mA) (mA) 100 1000 (40) S-8341A25AFT (CDRH124/10H, FTS2001,47F 2) Ripple (mV) Ripple(mV) 500 600 400 300 1.8V 200 100 2.4V 0 10 100 1000 IOUT IOUT(mA) (mA) (CDRH124/10H,FTS2001,100F 2) 500 VV 1.5 V N=1.5V INI Ripple (mV) Ripple(mV) 600 10000 400 1.8V 300 2.4V VIN=1.5V VIN 1.5 V 200 100 0 10 100 1000 IOUT IOUT(mA) (mA) 10000 45 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (41) S-8340A33AFT (CDRH5D18/4.1 NDS335N,47 (CDRH5D18/4.1 H,H, NDS335N, 47 F) F) VINV =1.2V 1.2 V 200 IN 250 1.8V 200 Ripple (mV) Ripple (mV) 250 Ripple(mV) 300 Ripple(mV) 300 150 100 50 3.0V 0 (CDRH5D18/4.1 H, NDS335N,47 (CDRH5D18/4.1 H,NDS335N, 47 F 2) F 2) 3.0V 1.8V 150 100 VINVIN=1.2V 1.2 V 50 0 1 10 IIOUT (mA) OUT (mA) 100 1000 1 10 IIOUT (mA) OUT(mA) 100 1000 (42) S-8340A33AFT (CDRH124/10 H,H, FTS2001, 47 F 2)F 2) (CDRH124/10 FTS2001,47 VINVI N1.5 V =1.5V 400 (CDRH124/10 FTS2001,100 (CDRH124/10 H, FTS2001, 100 F 2)F 2) H, 500 1.8V Ripple (mV) Ripple (mV) 500 Ripple(mV) 600 Ripple(mV) 600 3.0V 300 200 100 0 VIN 1.5 V V =1.5V 400 IN 300 1.8V 3.0V 200 100 0 10 100 IOUT (mA) OUT (mA) 1000 10000 10 100 IOUT IOUT(mA) (mA) 1000 10000 (43) S-8341A33AFT (CDRH5D18/4.1 NDS335N,47 (CDRH5D18/4.1 H,H, NDS335N, 47 F) F) 200 3.0V 150 (CDRH5D18/4.1 H,NDS335N,47 F 2) (CDRH5D18/4.1 H,NDS335N, 47 F 2) 250 VV 1.2 V INI N=1.2V Ripple (mV) Ripple(mV) Ripple (mV) 250 300 Ripple(mV) 300 100 50 1.8V 0 200 VINVIN=1.2V 1.2 V 150 3.0V 100 50 1.8V 0 1 10 (mA) IOUT (mA) 100 1000 1 10 IOUT IOUT(mA) (mA) 100 1000 (44) S-8341A33AFT (CDRH124/10 FTS2001,47 F 2) (CDRH124/10 H, FTS2001, 47 F 2) H, VI N=1.5V 400 3.0V 300 200 1.8V 100 0 VINV =1.5V 1.5 V 400 IN 1.8V 300 200 3.0V 100 0 10 46 (CDRH124/10 F 2) (CDRH124/10 H, FTS2001, 100 F 2) H,FTS2001,100 500 V VININ1.5 1.5VV Ripple (mV) Ripple(mV) Ripple (mV) 500 600 Ripple(mV) 600 100 IOUT (mA) (mA) 1000 10000 10 100 IOUT(mA) (mA) IOUT 1000 10000 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (45) S-8340A50AFT 300 (CDRH5D18/4.1 H, NDS335N,47 (CDRH5D18/4.1 H,NDS335N, 47 F) F) 4.5V Ripple (mV) 200 150 100 50 (CDRH5D18/4.1 H,NDS335N,47 F 2) (CDRH5D18/4.1 H,NDS335N, 47 F 2) 250 VV 1.8 V INI N=1.8V Ripple(mV) Ripple (mV) 250 Ripple(mV) 300 3.0V 0 200 4.5V 3.0V 150 VV 1.8 V INI N=1.8V 100 50 0 1 10 IOUT (mA) OUT(mA) 100 1000 1 10 IIOUT (mA) OUT (mA) 100 1000 (46) S-8340A50AFT 350 (CDRH124/10 FTS2001,47 F 2) (CDRH124/10 H,H, FTS2001, 47 F 2) VV 1.8 V IN =1.8V 300 350 4.5V IN 300 3.0V Ripple (mV) 250 Ripple(mV) Ripple (mV) 250 Ripple(mV) (CDRH124/10 H,FTS2001, 100 F 2) (CDRH124/10 H,FTS2001,100 F 2) 200 3.0V 150 100 200 100 50 0 0 100 IOUT IOUT(mA) (mA) 1000 4.5V 150 50 10 VVINI N 1.8 V =1.8V 10000 10 100 IOUT (mA) (mA) 1000 10000 (47) S-8341A50AFT (CDRH5D18/4.1 H, NDS335N,47 (CDRH5D18/4.1 H,NDS335N, 47 F) F) 4.5V 300 150 3.0V 50 Ripple (mV) Ripple (mV) 250 200 100 (CDRH5D18/4.1 H, NDS335N,47 (CDRH5D18/4.1 H,NDS335N, 47 F 2) F 2) 300 VVINI N=1.8V 1.8 V 250 Ripple(mV) 350 Ripple(mV) 350 200 VV 1.8 V IN =1.8V IN 150 4.5V 100 50 0 3.0V 0 1 10 IOUT IOUT(mA) (mA) 100 1000 1 10 IOUT IOUT(mA) (mA) 100 1000 (48) S-8341A50AFT (CDRH124/10 FTS2001,47 (CDRH124/10 H,H, FTS2001, 47 F 2)F 2) 600 4.5V 500 400 VVINI N=1.8V 1.8 V 400 300 200 3.0V 100 0 Ripple (mV) 500 Ripple(mV) Ripple(mV) Ripple (mV) 600 (CDRH124/10 H, FTS2001,100 (CDRH124/10 H,FTS2001, 100 F 2)F 2) VVINI N 1.8 V =1.8V 300 4.5V 200 3.0V 100 0 10 100 IOUT (mA) (mA) 1000 10000 10 100 IOUT (mA) (mA) 1000 10000 47 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (49) S-8340C25AFT 300 (CDRH6D28/10 H, FDN335N,47 (CDRH6D28/10 H,FDN335N, 47 F) F) 300 250 200 Ripple (mV) 1.8V Ripple(mV) Ripple(mV) Ripple (mV) 250 (CDRH6D28/10 H, FDN335N,100 (CDRH6D28/10 H,FDN335N, 100 F) F) VINVIN=1.2V 1.2 V 150 100 50 1.5V 0 1.8V 200 150 VIN 1.2 V V =1.2V 100 IN 50 1.5V 0 1 10 IOUT (mA) OUT (mA) 100 1000 1 10 IIOUT (mA) OUT(mA) 100 1000 (50) S-8340C25AFT 500 (CDRH124/10 FTS2001,47 (CDRH124/10 H,H, FTS2001, 47 F 2)F 2) 500 300 1.8V 200 Ripple (mV) 400 Ripple(mV) Ripple(mV) Ripple (mV) 400 (CDRH124/10 FTS2001,100 (CDRH124/10 H,H, FTS2001, 100 F 2)F 2) 2.4V VV 1.5 V IN =1.5V IN 100 0 300 1.8V 200 2.4V VVIN =1.5V 1.5 V IN 100 0 10 100 IIOUT (mA) OUT (mA) 1000 10000 10 100 IOUT IOUT(mA) (mA) 1000 10000 (51) S-8341C25AFT 300 (CDRH6D28/10 H, FDN335N,47 (CDRH6D28/10 H,FDN335N, 47 F) F) 300 250 1.5V Ripple (mV) 200 Ripple(mV) Ripple (mV) 250 Ripple(mV) (CDRH6D28/10 H, FDN335N,100 CDRH6D28/10 H,FDN335N, 100 F) F) VV 1.2 V IN =1.2V IN 150 100 50 1.8V 1.8V 200 1.5V 150 VINVI N=1.2V 1.2 V 100 50 0 0 1 10 IOUT IOUT(mA) (mA) 100 1 1000 10 IIOUT (mA) OUT (mA) 100 1000 (52) S-8341C25AFT (CDRH124/10 H, FTS2001,47 (CDRH124/10 H,FTS2001, 47 F 2)F 2) 1.8V VV 1.5 V IN =1.5V IN 300 200 100 0 1.8V 300 VINVIN=1.5V 1.5 V 200 2.4V 100 0 10 48 (CDRH124/10 FTS2001,100 (CDRH124/10 H,H, FTS2001, 100 F 2)F 2) 400 2.4V Ripple (mV) Ripple(mV) Ripple (mV) 400 500 Ripple(mV) 500 100 IOUT IOUT(mA) (mA) 1000 10000 10 100 IOUT IOUT(mA) (mA) 1000 10000 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (53) S-8340C33AFT 300 (CDRH6D28/10 H, FDN335N,47 (CDRH6D28/10 H,FDN335N, 47 F) F) 300 250 200 Ripple (mV) 1.8V Ripple(mV) Ripple(mV) Ripple (mV) 250 (CDRH6D28/10 H, FDN335N,100 (CDRH6D28/10 H,FDN335N, 100 F) F) VVIN =1.2V 1.2 V 150 IN 100 50 3.0V 0 1 10 IIOUT (mA) OUT (mA) 100 200 3.0V 1.8V 150 VIN 1.2 V VIN=1.2V 100 50 0 1000 1 10 IIOUT (mA) OUT (mA) 100 1000 (54) S-8340C33AFT 500 (CDRH124/10 FTS2001,47 F 2) (CDRH124/10 H, FTS2001, 47 F 2) H, 500 Ripple (mV) 400 3.0V 300 Ripple(mV) Ripple(mV) Ripple (mV) 400 (CDRH124/10 FTS2001,100 (CDRH124/10 H,H, FTS2001, 100 F 2)F 2) 1.8V 200 VIN 1.5 V VIN=1.5V 100 0 300 1.8V 3.0V VIN 1.5 V VI N=1.5V 200 100 0 10 100 IIOUT (mA) OUT (mA) 1000 10000 10 100 (mA) IIOUT OUT(mA) 1000 10000 (55) S-8341C33AFT (CDRH6D28/10 H,FDN335N, 47 F) F) (CDRH6D28/10 H, FDN335N,47 3.0V VIN 1.2 V V =1.2V 200 IN 150 100 50 (CDRH6D28/10 H, FDN335N,100 (CDRH6D28/10 H,FDN335N, 100 F) F) 250 Ripple (mV) Ripple (mV) 250 Ripple(mV) 300 Ripple(mV) 300 1.8V 0 200 3.0V VINV =1.2V 1.2 V 150 IN 100 50 1.8V 0 1 10 IOUT(mA) (mA) IOUT 100 1000 1 10 IOUT IOUT(mA) (mA) 100 1000 (56) S-8341C33AFT 500 (CDRH124/10 FTS2001,47 F 2) (CDRH124/10 H, FTS2001, 47 F 2) H, 500 Ripple (mV) 400 3.0V 300 200 VVINI N=1.5V 1.5 V Ripple(mV) Ripple(mV) Ripple (mV) 400 (CDRH124/10 FTS2001,100 (CDRH124/10 H,H, FTS2001, 100 F 2)F 2) 1.8V 100 0 300 3.0V 200 VINVIN=1.5V 1.5 V 1.8V 100 0 10 100 IOUT(mA) (mA) IOUT 1000 10000 10 100 (mA) IIOUT OUT(mA) 1000 10000 49 STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.4.0_02 S-8340/8341 Series (57) S-8340C50AFT (CDRH6D28/10 H, FDN335N,47 (CDRH6D28/10 H,FDN335N, 47 F) F) 4.5V 200 150 VIN 1.8 V V =1.8V IN 100 (CDRH6D28/10 H, FDN335N,100 (CDRH6D28/10 H,FDN335N, 100 F) F) 250 3.0V Ripple (mV) Ripple (mV) 250 Ripple(mV) 300 Ripple(mV) 300 50 0 4.5V 3.0V 200 150 VIN 1.8 V VIN=1.8V 100 50 0 1 10 IIOUT (mA) OUT (mA) 100 1000 1 10 IOUT IOUT(mA) (mA) 100 1000 (58) S-8340C50AFT (CDRH124/10 H, FTS2001,47 (CDRH124/10 H,FTS2001, 47 F 2)F 2) 3.0V 4.5V VVINI N=1.8V 1.8 V 300 (CDRH124/10 FTS2001,100 (CDRH124/10 H,H, FTS2001, 100 F 2)F 2) 400 Ripple (mV) Ripple(mV) Ripple (mV) 400 500 Ripple(mV) 500 200 100 3.0V 300 VV =1.8V 1.8 V INI N 200 4.5V 100 0 0 10 100 IIOUT (mA) OUT (mA) 1000 10 10000 100 (mA) IIOUT OUT (mA) 1000 10000 (59) S-8341C50AFT (CDRH6D28/10 H, FDN335N,47 (CDRH6D28/10 H,FDN335N, 47 F) F) 4.5V 200 VIN 1.8 V VIN=1.8V 150 100 50 (CDRH6D28/10 H, FDN335N,100 (CDRH6D28/10 H,FDN335N, 100 F) F) 250 Ripple (mV) Ripple (mV) 250 Ripple(mV) 300 Ripple(mV) 300 3.0V 0 200 4.5V 150 VV 1.8 V IN =1.8V IN 100 50 3.0V 0 1 10 IIOUT (mA) OUT (mA) 100 1000 1 10 IOUT(mA) (mA) IOUT 100 1000 (60) S-8341C50AFT 500 (CDRH124/10 FTS2001,47 (CDRH124/10 H,H, FTS2001, 47 F 2)F 2) 500 (CDRH124/10 FTS2001,100 F 2) (CDRH124/10 H, FTS2001, 100 F 2) H, 4.5V 400 400 VVIN =1.8V 1.8 V 3.0V 200 100 0 4.5V 300 VV 1.8 V IN =1.8V IN 200 100 3.0V 0 10 50 Ripple (mV) 300 Ripple(mV) Ripple(mV) Ripple (mV) IN 100 IOUT IOUT(mA) (mA) 1000 10000 10 100 IOUT(mA) (mA) IOUT 1000 10000 +0.3 3.00 -0.2 8 5 1 4 0.170.05 0.20.1 0.65 No. FT008-A-P-SD-1.2 TITLE TSSOP8-E-PKG Dimensions No. FT008-A-P-SD-1.2 ANGLE UNIT mm ABLIC Inc. 4.00.1 2.00.05 o1.550.05 0.30.05 +0.1 8.00.1 o1.55 -0.05 (4.4) +0.4 6.6 -0.2 1 8 4 5 Feed direction No. FT008-E-C-SD-1.0 TITLE TSSOP8-E-Carrier Tape FT008-E-C-SD-1.0 No. ANGLE UNIT mm ABLIC Inc. 13.41.0 17.51.0 Enlarged drawing in the central part o210.8 20.5 o130.5 No. FT008-E-R-SD-1.0 TITLE TSSOP8-E-Reel No. FT008-E-R-SD-1.0 QTY. ANGLE UNIT mm ABLIC Inc. 3,000 13.41.0 17.51.0 Enlarged drawing in the central part o210.8 20.5 o130.5 No. FT008-E-R-S1-1.0 TITLE TSSOP8-E-Reel FT008-E-R-S1-1.0 No. QTY. ANGLE UNIT mm ABLIC Inc. 4,000 Disclaimers (Handling Precautions) 1. All the information described herein (product data, specifications, figures, tables, programs, algorithms and application circuit examples, etc.) is current as of publishing date of this document and is subject to change without notice. 2. The circuit examples and the usages described herein are for reference only, and do not guarantee the success of any specific mass-production design. ABLIC Inc. is not responsible for damages caused by the reasons other than the products described herein (hereinafter "the products") or infringement of third-party intellectual property right and any other right due to the use of the information described herein. 3. ABLIC Inc. is not responsible for damages caused by the incorrect information described herein. 4. Be careful to use the products within their specified ranges. Pay special attention to the absolute maximum ratings, operation voltage range and electrical characteristics, etc. ABLIC Inc. is not responsible for damages caused by failures and / or accidents, etc. that occur due to the use of the products outside their specified ranges. 5. When using the products, confirm their applications, and the laws and regulations of the region or country where they are used and verify suitability, safety and other factors for the intended use. 6. When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related laws, and follow the required procedures. 7. The products must not be used or provided (exported) for the purposes of the development of weapons of mass destruction or military use. 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For more details on the information described herein, contact our sales office. 2.0-2018.01 www.ablicinc.com Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: ABLIC: S-8341A25AFT-T2-G S-8340A25AFT-T2-G S-8340A30AFT-T2-G S-8340A50AFT-T2-G S-8340C30AFT-T2-G S8341C30AFT-T2-G S-8341A50AFT-T2-G S-8340D00AFT-T2-G S-8341D00AFT-T2-G S-8341A30AFT-T2-G S8341A33AFT-T2-G S-8340C50AFT-T2-G S-8341C50AFT-T2-G S-8340B00AFT-T2-G S-8341B00AFT-T2-G S8341C25AFT-T2-G S-8340C25AFT-T2-G S-8340A33AFT-T2-G S-8340C33AFT-T2-G S-8341C33AFT-T2-G S8341A33AFT-T2-U S-8341C25AFT-T2-U S-8340C25AFT-T2-U S-8341C50AFT-T2-U S-8341A50AFT-T2-U S8340A30AFT-T2-U S-8340A33AFT-T2-U S-8340A35AFT-T2-U S-8341C51AFT-T2-U S-8341A30AFT-T2-U S8341A25AFT-T2-U S-8340A50AFT-T2-U S-8341C30AFT-T2-U S-8340D00AFT-T2-U S-8340A60AFT-T2-U S8340A51AFT-T2-U S-8340C50AFT-T2-U S-8341B00AFT-T2-U S-8341D00AFT-T2-U S-8340A25AFT-T2-U S8340A56AFT-T2-U S-8340C33AFT-T2-U S-8341C33AFT-T2-U S-8340C30AFT-T2-U S-8340B00AFT-T2-U S8340C60AFT-T2-U S-8340A34AFT-T2-U Seiko Instruments: S-8340A56AFT-T2-G S-8340A60AFT-T2-G S-8340C60AFT-T2-G S-8340A34AFT-T2-G S-8340A35AFT-T2-G S8340A51AFT-T2-G S-8341C51AFT-T2-G