Series PWM Controlled, PWM/PFM Switchable StepUp DC/DC Controllers Input Voltage Range : 0.9~10.0V Applications Output Voltage Range : 1.5~6.5V(2.5%) Electronic Information Organizers Oscillator Frequency : 300kHz(15%) Palmtops Cellular and portable phones PWM/PFM Switching Control (XC6368) High Efficiency Portable Audio Systems : 84% (typ.) Various Multi-function Power Supplies SOT-25 Package 4 General Description Features The XC6367/68 series are multi-functional step-up DC/DC converter controllers with built-in high speed, low ON resistance drivers. Large output currents are possible using an externally connected transistor, coil, diode and condenser. Output voltage is selectable in 0.1 steps within a 1.5V ~ 6.5V range (2.5%). For output voltages outside this range, we recommend this FB version, which has a 1.0V internal reference voltage. Using this version, the required output voltage can be set-up using 2 external resistors. With a 300kHz switching frequency, the size of the external components can be reduced. Input voltage range : 0.9V~10V Operating voltage range : 2.0V~10V Output voltage range : 1.5V~6.5V programmable in 0.1V steps (2.5%) Oscillator frequency : 300, 100kHz (15%) Custom products for 180, 500kHz Output Current : 200mA + (VIN=1.8V, VOUT=3.3V) High Efficiency Stand-by capability Selection : 84% (typ.) : ISTB=0.5A (max.) : Soft start set-up external Output Voltage set-up internal (VOUT) Output Voltage set-up external (FB) : SOT-25 Control switches from PWM to PFM during light loads with the XC6368 (PWM/PFM switchable) and the series is highly efficient from light loads to large output currents. Soft start time of XC6367/68A, B, and C series is internally set to Package 10msec and XC6367/68C, D, and F series regulate soft start time by connecting resistors and capacitors exteranally. During stand-by time (CE pin "Low"), current consumption is reduced to less than 0.5A. Typical Application Circuit SD VOUT Typical Performance Characteristic XC6368A333MR (300kHz,3.3V) L EXT VDD CE VOUT 2.7V CIN GND CL Tantalum RL Efficiency:EFFI (%) Tr VIN L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 80 60 40 VIN=0.9V 1.2V 1.5V 1.8V 20 0 0.1 1 10 100 1000 Output Current:IOUT (mA) 407 XC6367/6368 Series Pin Configuration Pin Assignment XC6367/XC6368 series XC6367/XC6368 series A, B, C, D types E, F types EXT GND EXT GND 5 4 5 4 PIN NUMBER XC6367 / XC6368 A, B, C, D 1 2 3 1 2 3 VOUT VDD CE CE VOUT N.C. PIN NAME FUNCTION E, F 5 5 EXT External transistor connection 2 - VDD Supply voltage input 4 4 GND Ground FB SOT-25 TOP VIEW SOT-25 TOP VIEW 3 1 CE Chip Enable (C, D, F types : soft start set-up external, soft start capacitor connected) 1 2 VOUT (FB) Output voltage monitor (E, F types : output voltage monitor, power supply) (B, D types : output voltage set-up external) 4 Product Classification Selection Guide START Soft-start set-up internal Output voltage set-up internal (VOUT) VOUT=VDD pin Output voltage set-up external (FB) XC6367A,XC6368A XC6367E,XC6368E XC6367B,XC6368B Soft-start set-up external Output voltage set-up internal (VOUT) VOUT=VDD pin Output voltage set-up external (FB) 408 XC6367C,XC6368C XC6367F,XC6368F XC6367D,XC6368D XC6367/6368 Series Ordering Information XC6367qwerty XC6367 Series PWM Control SYMBOL A q V O U T /FB SOFT-START VOUT Set-up Internal B FB Set-up Internal C VOUT Set-up External D FB Set-up External E VOUT Set-up Internal VOUT Set-up External F w Output voltage value : e.g. 3.0V output : (w=3, e=0), F.B. products (B,D types) : (w=1, e=0) e r 3 Oscillator Frequency 300kHz 1 Oscillator Frequency 100kHz 2 Oscillator Frequency 180kHz (Custom) 5 Oscillator Frequency 500kHz (Custom) t M Package SOT-25 y R Embossed Tape : Standard Feed L 4 : Reverse Feed XC6368qwerty XC6368 Series PWM/PFM switching control (same as XC6367 series) Packaging Information SOT-25 +0.1 0.15 -0.05 0.4 +0.1 -0.05 +0.2 -0.1 0.2min 1.6 2.80.2 00.1 0.95 1.90.2 1.10.1 2.90.2 409 XC6367/6368 Series Marking XC6367 Series q Represents the Product Classification qwer PRODUCT NAME DESIGNATOR XC6367A XC6367B A B XC6367C XC6367D C D XC6367E XC6367F E F SOT-25 (TOP VIEW) w Represents the integer of the Output Voltage and Oscillator Frequency INTEGER OF THE OUTPUT VOLTAGE 4 OSCILLATOR FREQUENCYkHz 100 180 300 1 2 B 1 1 500 B C 2 2 C 3 4 D E 3 4 3 4 D E 5 F 5 5 F 6 H 6 6 H e Represents the decimal number of the Output Voltage and Oscillator Frequency OSCILLATOR FREQUENCYkHz THE DECIMAL NUMBER OF OUTPUT VOLTAGE 100 180 300 500 0 0 0 A A 1 1 1 B B 2 3 2 3 2 3 C D C D 4 5 6 4 5 6 4 5 6 E F H E F H 7 7 7 K K 8 8 8 L L 9 9 9 M M r Denotes the production lot number 0 to 9, A to Z repeated(G.I.J.O.Q.W excepted) 410 XC6367/6368 Series XC6368 Series q Represents the Product Classification qwer PRODUCT NAME DESIGNATOR XC6368A XC6368B XC6368C XC6368D K M N XC6368E XC6368F R SOT-25 (TOP VIEW) L P w Represents the integer of the Output Voltage and Oscillator Frequency INTEGER OF THE OUTPUT VOLTAGE OSCILLATOR FREQUENCYkHz 100 180 300 1 2 B 1 1 500 B C 2 2 C 3 4 D E 3 4 3 4 D E 5 F 5 5 F 6 CUSTOM H 6 6 H 4 S e Represents the decimal number of the Output Voltage and Oscillator Frequency OSCILLATOR FREQUENCYkHz THE DECIMAL NUMBER OF OUTPUT VOLTAGE 100 180 300 500 0 0 0 A A 1 1 1 B B 2 3 2 3 2 3 C D C D 4 5 6 4 5 6 4 5 6 E F H E F H 7 7 7 K K 8 8 8 L L 9 9 9 M M r Denotes the production lot number 0 to 9, A to Z repeated(G.I.J.O.Q.W excepted) 411 XC6367/6368 Series Block Diagram XC6367, XC6368 Series A, C, E, F types (VOUT) Phase Compensation VOUT Error Amp. VDD PWM Comparator + + Buffer, Driver - EXT - 4 CE Vref with Soft Start, CE Ramp Wave Generator, OSC PWM/PFM Controller GND Note : Connecting VOUT and VDD internally with E, F types. XC6367, XC6368 Series B,D types (FB) Phase Compensation Error Amp. FB VDD PWM Comparator + + Buffer, Driver - EXT - CE 412 Vref with Soft Start, CE PWM/PFM Controller Ramp Wave Generator, OSC GND XC6367/6368 Series Absolute Maximum Ratings Ta=25C PARAMETER SYMBOL RATINGS UNITS VDD Pin Voltage VDD -0.3 ~ 12 V VOUT Pin Voltage VOUT -0.3 ~ 12 V FB Pin Voltage VFB -0.3 ~ 12 V CE Pin Voltage VCE -0.3 ~ 12 V EXT Pin Voltage VEXT -0.3 ~ VDD +0.3 V EXT Pin Current IEXT 100 mA Continuous Total Power Dissipation Pd 150 mW Operating Ambient Temperature Topr -30 ~ +80 C Storage Temperature Tstg -40 ~ +125 C 4 Electrical Characteristics XC6367A333MR, XC6368A333MR PARAMETER SYMBOL (V OUT =3.3V, F OSC =300kHz) CONDITIONS Ta=25C MIN TYP MAX UNITS Output Voltage VOUT Supply Voltage (Note 1) VDD 2.0 - 10.0 Maximum Input Voltage VIN 10.0 - - V Oscillation Start-up Voltage 1 VST1 Use of a 2SD1628 transistor, IOUT=1.0mA - - 0.9 V Oscillation Start-up Voltage 2 VST2 VOUT=CE : Apply voltage - - 0.8 V Oscillation Hold Voltage VHLD Use of a 2SX1628 transistor recommended, IOUT=1.0mA - - Supply Current 1 Supply Current 2 Stand-by Current IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY 255 130 20 300 V A Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 0.7 200 35 0.5 345 A A kHz Same as IDD1 78 15 85 25 92 35 % % CE "High" Voltage VCEH VOUT=set-up output voltage x0.95 0.65 - - V CE "Low" Voltage VCEL VOUT=set-up output voltage x0.95 - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 29 43 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 19 27 Efficiency (Note 2) EFFI - 84 - % Soft-Start Time TSS 5 10 20 msec 3.218 3.300 3.383 IOUT=0mA V V Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=130mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM). 413 XC6367/6368 Series XC6367A503MR, XC6368A503MR 4 PARAMETER SYMBOL (V OUT =5.0V, F OSC =300kHz) CONDITIONS TYP MAX UNITS 4.875 5.000 5.125 V Output Voltage VOUT Supply Voltage (Note 1) VDD 2.0 - 10.0 V Maximum Input Voltage VIN 10.0 - - V Oscillation Start-up Voltage 1 VST1 Use of a 2SD1628 transistor, IOUT=1.0mA - - 0.9 V Oscillation Start-up Voltage 2 VST2 VOUT=CE : Apply voltage - - 0.8 V Oscillation Hold Voltage VHLD Use of a 2SD1628 transistor, IOUT=1.0mA - - Supply Current 1 Supply Current 2 Stand-by Current IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY 255 180 22 300 V A Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 0.7 280 38 0.5 345 A A kHz Same as IDD1 78 15 85 25 92 35 % % CE "High" Voltage VCEH VOUT=set-up output voltage x0.95 0.65 - - V CE "Low" Voltage VCEL VOUT=set-up output voltage x0.95 - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 20 29 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 13 19 Efficiency (Note 2) EFFI - 87 - % Soft-Start Time TSS 5 10 20 msec IOUT=0mA Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=200mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM). Series Amendments: XC6367C, XC6368C series Please note that the following condition applies : Soft Start Time (TSS) : Connect RSS, CSS. CE 0V 3.0V XC6367E, XC6368E series Please delete 'Supply Voltage (VDD) ' and '(Note 1)' Please add the following note : Note 4: There are no products within the XC6367E, XC6368E series range which have a set-up voltage of less than 2.0V. XC6367F, XC6368F series Please note that the following condition applies : Soft Start Time (TSS) : Connect RSS, CSS. CE 0V 3.0V Please delete 'Supply Voltage (VDD) ' and '(Note 1)' Please add the following note : Note 4: There are no products within the XC6367F, XC6368F series range which have a set-up voltage of less than 2.0V. 414 Ta=25C MIN XC6367/6368 Series XC6367B103MR, XC6368B103MR PARAMETER SYMBOL V OUT =3.0V (when set-up), F OSC =300kHz CONDITIONS Ta=25C MIN TYP MAX UNITS 2.925 3.000 3.075 V Output Voltage VOUT Supply Voltage (Note 1) VDD 2.0 - 10.0 Maximum Input Voltage VIN 10.0 - - V Oscillation Start-up Voltage 1 VST1 Use of a 2SD1628 transistor, IOUT=1.0mA - - 0.9 V Oscillation Start-up Voltage 2 VST2 VDD=CE : Apply voltage, FB=0V - - 0.8 V Oscillation Hold Voltage VHLD Use of a 2SD1628 transistor, IOUT=1.0mA - - Supply Current 1 Supply Current 2 Stand-by Current IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY 255 120 20 300 V A Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) VDD=CE=2.85V, FB=0V VDD=CE=3.5V, FB=1.2V VDD=2.85V, CE=0V, FB=0V Same as IDD1 0.7 190 34 0.5 345 A A kHz Same as IDD1 78 15 85 25 92 35 % % CE "High" Voltage VCEH VDD=2.85V, FB=0V 0.65 - - V CE "Low" Voltage VCEL VDD=2.85V, FB=0V - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 32 47 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 20 30 Efficiency (Note 2) EFFI - 84 - % Soft-Start Time TSS 5 10 20 msec IOUT=0mA V 4 Measuring conditions: Unless otherwise specified, VIN=1.8V, IOUT=120mA External components : RFB1 = 400k, RFB2 = 200k, CFB = 47pF Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM). Series Amendments: XC6367D, XC6368D series Please note that the following condition applies : Soft Start Time (TSS) : Connect RSS, CSS. CE 0V 3.0V 415 XC6367/6368 Series XC6367A331MR, XC6368A331MR 4 PARAMETER SYMBOL (V OUT =3.3V, F OSC =100kHz) CONDITIONS TYP MAX UNITS 3.218 3.300 3.383 V Output Voltage VOUT Supply Voltage (Note 1) VDD 2.0 - 10.0 V Maximum Input Voltage VIN 10.0 - - V Oscillation Start-up Voltage 1 VST1 Use of a 2SD1628 transistor, IOUT=1.0mA - - 0.9 V Oscillation Start-up Voltage 2 VST2 VOUT=CE : Apply voltage - - 0.8 V Oscillation Hold Voltage VHLD Use of a 2SD1628 transistor, IOUT=1.0mA - - Supply Current 1 Supply Current 2 Stand-by Current IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY 85 50 11 100 V A Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 0.7 100 20 0.5 115 A A kHz Same as IDD1 78 15 85 25 92 35 % % CE "High" Voltage VCEH VOUT=set-up output voltage x0.95 0.65 - - V CE "Low" Voltage VCEL VOUT=set-up output voltage x0.95 - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 29 43 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 19 27 Efficiency (Note 2) EFFI - 84 - % Soft-Start Time TSS 5 10 20 msec IOUT=0mA Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=130mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM). 416 Ta=25C MIN XC6367/6368 Series XC6367A501MR, XC6368A501MR PARAMETER SYMBOL (V OUT =5.0V, F OSC =100kHz) CONDITIONS Ta=25C MIN TYP MAX UNITS 4.875 5.000 5.125 V Output Voltage VOUT Supply Voltage (Note 1) VDD 2.0 - 10.0 Maximum Input Voltage VIN 10.0 - - V Oscillation Start-up Voltage 1 VST1 Use of a 2SD1628 transistor, IOUT=1.0mA - - 0.9 V Oscillation Start-up Voltage 2 VST2 VOUT=CE : Apply voltage - - 0.8 V Oscillation Hold Voltage VHLD Use of a 2SD1628 transistor, IOUT=1.0mA - - Supply Current 1 Supply Current 2 Stand-by Current IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY 85 70 11 100 V A Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 0.7 120 22 0.5 115 A A kHz Same as IDD1 78 15 85 25 92 35 % % CE "High" Voltage VCEH VOUT=set-up output voltage x0.95 0.65 - - V CE "Low" Voltage VCEL VOUT=set-up output voltage x0.95 - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 20 29 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 13 19 Efficiency (Note 2) EFFI - 87 - % Soft-Start Time TSS 5 10 20 msec IOUT=0mA V 4 Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=200mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM). 417 XC6367/6368 Series XC6367B101MR, XC6368B101MR 4 PARAMETER SYMBOL V OUT =3.0V (when set-up), F OSC =100kHz CONDITIONS TYP MAX UNITS 2.925 3.000 3.075 V Output Voltage VOUT Supply Voltage (Note 1) VDD 2.0 - 10.0 V Maximum Input Voltage VIN 10.0 - - V Oscillation Start-up Voltage 1 VST1 Use of a 2SD1628 transistor, IOUT=1.0mA - - 0.9 V Oscillation Start-up Voltage 2 VST2 VDD=CE : Apply voltage, FB=0V - - 0.8 V Oscillation Hold Voltage VHLD Use of a 2SD1628 transistor, IOUT=1.0mA - - Supply Current 1 Supply Current 2 Stand-by Current IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY 85 50 11 100 V A Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) VDD=CE=2.85V, FB=0V VDD=CE=3.5V, FB=1.2V VDD=2.85V, CE=0V, FB=0V Same as IDD1 0.7 90 20 0.5 115 A A kHz Same as IDD1 78 15 85 25 92 35 % % CE "High" Voltage VCEH VDD=2.85V, FB=0V 0.65 - - V CE "Low" Voltage VCEL VDD=2.85V, FB=0V - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 32 47 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 20 30 Efficiency (Note 2) EFFI - 84 - % Soft-Start Time TSS 5 10 20 msec IOUT=0mA Measuring conditions: Unless otherwise specified, VIN=1.8V, IOUT=120mA External components : RFB1 = 400k, RFB2 = 200k, CFB = 47pF Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM). 418 Ta=25C MIN XC6367/6368 Series Typical Application Circuits Circuit 1. XC6367A, XC6368A SD VOUT L EXT VDD CE VOUT Tr VIN CL Tantalum CIN RL GND 4 Circuit 2. XC6367B, XC6368B SD VOUT L EXT VDD CE FB RFB1 CFB Tr VIN CL Tantalum CIN GND Circuit 3. RL RFB2 XC6367C, XC6368C SD VOUT L Tr EXT VDD CE VOUT RSS VIN CIN CSS CL Tantalum RL GND 419 XC6367/6368 Series Circuit 4. XC6367D, XC6368D SD VOUT L Tr EXT VDD CE FB RFB1 CFB RSS VIN CIN GND CSS 4 Circuit 5. CL Tantalum RFB2 XC6367E, XC6368E SD VOUT L EXT VOUT Tr RL CL Tantalum CE VIN CIN GND Circuit 6. XC6367F, XC6368F SD VOUT L Tr EXT VOUT RSS CL Tantalum CE VIN CIN CSS 420 GND RL RL XC6367/6368 Series Circuit 7. XC6367A, XC6368ANPN Transistor SD L VOUT CB EXT VDD CE VOUT CL Tantalum Tr VIN RB RL CIN GND 4 Circuit 8. XC6367B, XC6368BNPN Transistor SD VOUT L CB EXT VDD CFB CE FB RFB1 Tr RB VIN CL Tantalum RL CIN GND Circuit 9. RFB2 XC6367C, XC6368CNPN Transistor SD VOUT CB L RB Tr VDD EXT RL RSS CE VIN CIN CSS CL Tantalum VOUT GND 421 XC6367/6368 Series Circuit 10. XC6367D, XC6368DNPN Transistor SD VOUT CB L VDD CFB EXT RB Tr RSS VIN CL Tantalum RL FB CE CIN RFB1 GND CSS RFB2 4 Circuit 11. XC6367E, XC6368ENPN Transistor SD L VOUT CB EXT VOUT Tr VIN CL Tantalum RL CE RB CIN GND Circuit 12. XC6367F, XC6368FNPN Transistor SD VOUT CB L RB Tr CL Tantalum EXT VOUT RSS CE VIN CIN 422 CSS GND RL XC6367/6368 Series Recommended Components Tr L SD CIN CL : XP161A1355PR (Torex N-channel Power MOSFET) As the breakdown voltage of XP161A1355PR is 8V, take care with the power supply voltage. With output voltages over 6V, use the XP161A1265PR with a breakdown voltage of 12V. VST1 : XP161A1355PR = 1.2V (max) XP161A1265PR = 1.5V (max) : 22H (Sumida CR54, FOSC=300kHz) 47H (Sumida CR75, FOSC=100, 180kHz) 10H (Sumida CR54, FOSC=500kHz) : MA2Q735 (Schottky Diode, Matsushita) : 16V 220F (Aluminium Electrolytic Capacitor) : 16V 47F + 47F (Tantalum capacitor, Nichicon MCE) NPN Tr type : Tr Rb Cb : 2SD1628 (Sanyo) : 500 (Adjust according to load and Tr. hFE levels) : 2200pF (Ceramic type) Set up so that CB 1 / (2 x RB x FOSC x 0.7) 4 C, D, F type (soft-start externally set-up) : CSS : 0.1F (Ceramic capacitor) RSS : 470k (C, F type), 220k (D type) B, D type (FB versions) RFB : Set up so that RFB1 / RFB2 = VOUT - 1 (VOUT = set-up output voltage), Please use with RFB1 + RFB2 2M CFB : Set up so that fzfb = 1/ (2 x x CFB x RFB1) is within the 0.1 to 20kHz range (10kHz conventional) Adjustments necessary in respect of L, CL. e.g VOUT = 3.0V RFB1 = 400k, RFB2 = 200k, CFB = 47pF If using a Torex MOSFET, We recommend using one which has a gate protection diode built-in. Rds(ON) Rds(ON) Gate Protection Diode Built-in XP161A1355PR 0.15@Vgs=1.5V XP161A1265PR 0.095@Vgs=2.5V 423 XC6367/6368 Series Directions for use Notes on Use Take ample care to ensure that none of the IC's, nor the external component's, absolute maximum ratings are exceeded. Be extremely careful when selecting parts and do not limit your reference to the specifications and characteristics for the DC/DC converter alone. The IC also depends, to a great extent, upon the external components. Arrange the peripherals in the environs of the IC. In order to reduce wiring impedance, use short, thick wires. In particular, wire the load capacitor as close as possible and strengthen the ground wiring sufficiently. Ground current during switching may cause the IC's operations to become unstable due to changes in ground voltage, so please strengthen the IC's GND pin surroundings. External Components External Components 4 1. Soft start time set up If you wish to lengthen soft start time we recommend that you use the C or D versions of the series which have soft start time externally set up. Soft start time (TSS) is between MIN & MAX, as indicated in the graphs below, so please select soft start condenser capacitance (CSS) to suit your application. XC6367/XC6368CxxxMR (VOUT) 80 MAX 60 40 20 MIN VDD=VOUT=2.8V (3.0V set up) VCE=0V3.0V, RSS=220k 100 Soft Start Time:TSS (msec) 100 Soft Start Time:TSS (msec) XC6367/XC6368D10xMR (FB) VDD=VOUT=VOUT set up voltagex0.95V VCE=0V3.0V, RSS=470k 80 MAX 60 40 20 MIN 0 0 0.0 0.1 0.2 0.3 0.4 0.5 Soft Start Condenser Capacitance:CSS (F) 0.0 0.1 0.2 0.3 2. RFB1CFB set up fzfb = 1 / ( 2 x CFB x RFB1 ) In order to achieve a value for fzfb within the range of 0.1kHz to 20kHz, we recommend that values for RFB1 & CFB are selected from the area indicated within the lines of fzfb = 0.1kHz and fzfb = 20 kHz as shown on the graph below. Please select combinations of values as close to the fzfb = 10kHz line as possible. XC6367/XC6368B10xMR (FB) XC6367/XC6368D10xMR (FB) 100000 CFB (pF) 10000 0.1kHz 1000 100 fzfb=10kHz 10 1 200 20kHz 300 400 500 600 RFB1 (k) 424 700 800 0.4 0.5 Soft Start Condenser Capacitance:CSS (F) XC6367/6368 Series Electrical Characteristics Typical Performance Characteristics (1) OUTPUT VOLTAGE vs. OUTPUT CURRENT XC6368A503MR (300kHz,5.0V) XC6368A333MR (300kHz,3.3V) L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 3.4 2.7V 3.3 3.2 VIN=0.9V 1.2V 1.5V 1.8V 3.1 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1265P 5.2 Output Voltage:VOUT (V) Output Voltage:VOUT (V) 3.5 4V 5.1 5.0 4.9 1.5V,1.8V 4.8 4.7 3.0 0.1 1 10 100 0.1 1000 XC6368A333MR (300kHz,3.3V) 2.7V 3.3 3.2 VIN=0.9V 1.2V 100 1000 4 1.5V 1.8V 3.1 L=33H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 3.5 Output Voltage:VOUT (V) Output Voltage:VOUT (V) 3.4 10 XC6368A333MR (300kHz,3.3V) L=10H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 3.5 1 Output Current:IOUT (mA) Output Current:IOUT (mA) 3.0 3.4 2.7V 3.3 3.2 VIN=0.9V 1.2V 1.5V 1.8V 3.1 3.0 0.1 1 10 100 0.1 1000 XC6368A332MR (180kHz,3.3V) 2.7V 3.3 3.2 VIN=0.9V 1.2V 100 1000 1.5V 1.8V 3.1 3.0 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 3.5 Output Voltage:VOUT (V) 3.4 10 XC6367A332MR (180kHz,3.3V) L=22H(CR54), CL=94F(Tantalum) SD:MA737Tr:XP161A1355P 3.5 1 Output Current:IOUT (mA) Output Current:IOUT (mA) Output Voltage:VOUT (V) 3V VIN=0.9V,1.2V 3.4 2.7V 3.3 3.2 VIN=0.9V1.2V 1.5V 1.8V 3.1 3.0 0.1 1 10 100 1000 Output Current:IOUT (mA) 0.1 1 10 100 1000 Output Current:IOUT (mA) Note:External componentCIN=220F(Electrolytic capacitor) 425 XC6367/6368 Series (1) OUTPUT VOLTAGE vs. OUTPUT CURRENT XC6368A305MR (500kHz,3.0V) 3.1 2.7V 3.0 2.9 VIN =0.9V 1.2V 1.5V 1.8V 2.8 L=47H(CR75), CL=94F(Tantalum) SD:MA737, Tr:2SD1628G, RB=510, CB=2200pF 1.60 Output Voltage:VOUT (V) 3.2 Output Voltage:VOUT (V) XC6368A151MR (100kHz,1.5V) L=10H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 1.55 1.50 1.45 VIN =0.9V 1.2V 1.40 VDD=3.0V 2.7 1.35 0.1 1 10 100 1000 0.1 Output Current:IOUT (mA) 4 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1265P 2.7V 3.3 3.2 VIN =0.9V 1.2V 1.5V 1.8V 3.1 0.1 1 10 100 1000 3.4 2.7V 3.3 3.2 VIN =0.9V 1.2V 1.5V 1.8V 3.1 XC6368B101MR (100kHz,2.0V) L=22H(CR75), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 2.10 2.05 1.5V 2.00 1.95 VIN =0.9V 1.2V 1.90 1.85 0.1 1 10 100 0.1 1 10 100 Output Current:IOUT (mA) Output Current:IOUT (mA) Output Voltage:VOUT (V) 1000 3.0 3.0 1000 Output Current:IOUT (mA) Note:External componentCIN=220F(Electrolytic capacitor) 426 100 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 3.5 Output Voltage:VOUT (V) Output Voltage:VOUT (V) 3.4 10 XC6368B102MR (180kHz,3.3V) XC6368B103MR (300kHz,3.3V) 3.5 1 Output Current:IOUT (mA) 1000 XC6367/6368 Series (2) EFFICIENCY vs. OUTPUT CURRENT XC6368A503MR (300kHz,5.0V) XC6368A333MR (300kHz,3.3V) L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1265P 100 4.0V 80 60 40 VIN=0.9V 1.2V 1.5V 1.8V 20 Efficiency:EFFI (%) Efficiency:EFFI (%) 2.7V 80 1.8V 3.0V 60 40 VIN=0.9V 1.2V 1.5V 20 0 0 0.1 1 10 100 0.1 1000 Output Current:IOUT (mA) XC6368A333MR (300kHz,3.3V) 60 VIN=0.9V 1.2V 1.5V 1.8V 20 4 80 60 40 VIN=0.9V 1.2V 1.5V 1.8V 20 0 0 0.1 1 10 100 0.1 1000 XC6368A332MR (180kHz,3.3V) 10 100 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 1.8V 2.7V Efficiency:EFFI (%) 80 60 40 1000 XC6367A332MR (180kHz,3.3V) L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 1 Output Current:IOUT (mA) Output Current:IOUT (mA) Efficiency:EFFI (%) 1000 2.7V Efficiency:EFFI (%) Efficiency:EFFI (%) 100 L=33H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 2.7V 80 40 10 XC6368A333MR (300kHz,3.3V) L=10H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 1 Output Current:IOUT (mA) VIN=0.9V 1.2V 1.5V 1.8V 20 0 80 60 40 VIN=0.9V 1.2V 1.5V 20 0 0.1 1 10 100 1000 Output Current:IOUT (mA) 0.1 1 10 100 1000 Output Current:IOUT (mA) Note:External componentCIN=220F(Electrolytic capacitor) 427 XC6367/6368 Series (2) EFFICIENCY vs. OUTPUT CURRENT XC6368A305MR (500kHz,3.0V) XC6368A151MR (100kHz,1.5V) L=10H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 L=47H(CR75), CL=94F(Tantalum) SD:MA737, Tr:2SD1628G, RB=510, CB=2200pF 100 80 60 40 V IN =0.9V 1.2V 1.5V 1.8V 20 Efficiency:EFFI (%) Efficiency:EFFI (%) 2.7V 80 60 40 VIN =0.9V 1.2V 20 VDD=3.0V 0 0 0.1 1 10 100 1000 0.1 4 2.7V 80 60 40 VIN =0.9V 1.2V 1.5V 1.8V 20 0 Efficiency:EFFI (%) Efficiency:EFFI (%) 1000 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 2.7V 80 60 40 VIN =0.9V 1.2V 1.5V 1.8V 20 0 0.1 1 10 100 1000 Output Current:IOUT (mA) L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 80 60 40 V IN =0.9V 1.2V 1.5V 20 0 0.1 1 10 100 0.1 1 10 100 Output Current:IOUT (mA) XC6368B101MR (100kHz,2.0V) Efficiency:EFFI (%) 100 XC6368B102MR (180kHz,3.3V) L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1265P 100 10 Output Current:IOUT (mA) XC6368B103MR (300kHz,3.3V) 1000 Output Current:IOUT (mA) Note:External componentCIN=220F(Electrolytic capacitor) 428 1 Output Current:IOUT (mA) 1000 XC6367/6368 Series (3) RIPPLE VOLTAGE vs. OUTPUT CURRENT XC6368A333MR300kHz, 3.3V XC6368A503MR300kHz, 5.0V 100 1.8V 80 1.5V 60 1.2V 40 L22H CR54 , CL94F Tantalum SDMA737, TrXP161A1265P Ripple Voltage:VrmV Ripple Voltage:VrmV L22HCR54, CL94F Tantalum SDMA737, TrXP161A1355P VIN=0.9V 20 2.7V 0 100 4.0V 80 3.0V 60 1.5V 1.2V 40 VIN=0.9V 20 2.7V 0 0.1 1 10 100 1000 0.1 Output Current:IOUTmA 1 10 100 1000 Output Current:IOUTmA 4 XC6368A333MR300kHz, 3.3V XC6368A333MR300kHz, 3.3V 100 1.8V 80 1.5V 60 1.2V 40 VIN=0.9V 20 L33H CR54 , CL94F Tantalum SDMA737, TrXP161A1355P Ripple Voltage:VrmV Ripple Voltage:VrmV L10HCR54, CL94F Tantalum SDMA737, TrXP161A1355P 2.7V 0 100 2.7V 1.8V 80 1.5V 60 1.2V 40 VIN=0.9V 20 0 0.1 1 10 100 1000 0.1 10 100 1000 Output Current:IOUTmA XC6368A332MR180kHz, 3.3V XC6367A332MR180kHz, 3.3V L22HCR54, CL94F Tantalum SDMA737, TrXP161A1355P 100 2.7V 80 1.8V 1.5V 60 1.2V 40 L22H CR54 , CL94F Tantalum SDMA737, TrXP161A1355P Ripple Voltage:VrmV Ripple Voltage:VrmV 1 Output Current:IOUTmA VIN=0.9V 20 0 100 1.5V 80 VIN=0.9V 60 1.2V 40 20 1.8V 0 0.1 1 10 100 Output Current:IOUTmA 1000 0.1 1 10 100 1000 Output Current:IOUTmA 429 XC6367/6368 Series (3) RIPPLE VOLTAGE vs. OUTPUT CURRENT XC6368A305MR500kHz, 3.0V Ripple Voltage:VrmV L10HCR54, CL94F Tantalum SDMA737, TrXP161A1355P 100 2.7V 80 1.5V 60 1.2V 40 VIN=0.9V 20 1.8V 0 0.1 1 10 100 Output Current:IOUTmA 4 430 1000 XC6367/6368 Series (4) OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE (5) SUPPLY CURRENT 1 vs. AMBIENT TEMPERATURE XC6368B103MR (300kHz,3.0V 3.05 3.00 2.95 VIN=1.8V IOUT=120mA VDD=VOUT=3.135V 200 Supply Current1:IDD1 (A) 3.10 Output Voltage:VOUT (V) XC6368A333MR (300kHz,3.3V) L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 2.90 150 100 50 0 -40 -20 0 20 40 60 80 -40 Ambient Temp.:Ta () (6) SUPPLY CURRENT 2 vs. AMBIENT TEMPERATURE VDD=VOUT=3.8V 4 80 60 40 20 VDD=3.135V, VOUT=VCE=0V 0.5 Stand- By Current:ISTB (A) Supply Current2:IDD2 (A) 80 XC6368A333MR (300kHz,3.3V) 0.4 0.3 0.2 0.1 0.0 0 -40 -20 0 20 40 60 Ambient Temp.:Ta () -40 80 (8) EXT"H"ON RESISTANCE vs. AMBIENT TEMPERATURE EXT" L" ON Resistance:REXTL () 40 30 20 10 0 -40 -20 0 20 40 60 Ambient Temp.:Ta () 0 20 40 60 Ambient Temp.:Ta () 80 XC6368A333MR (300kHz,3.3V) VDD=VOUT=3.135V 50 -20 (9) EXT"L"ON RESISTANCE vs. AMBIENT TEMPERATURE XC6368A333MR (300kHz,3.3V) EXT" H" ON Resistance:REXTH () 0 20 40 60 Ambient Temp.:Ta () (7) STAND-BY CURRENT vs. AMBIENT TEMPERATURE XC6368A333MR (300kHz,3.3V) 100 -20 80 VDD=VOUT=3.135V 50 40 30 20 10 0 -40 -20 0 20 40 60 Ambient Temp.:Ta () 80 431 XC6367/6368 Series (10) OSCILLATION FREQUENCY vs. AMBIENT TEMPERATURE (11) MAX. DUTY RATIO vs. AMBIENT TEMPERATURE 500 400 300 200 100 0 -40 4 XC6368A333MR (300kHz,3.3V) VDD=VOUT=3.135V -20 0 20 40 60 Ambient Temp.:Ta () 90 80 70 -40 80 40 60 80 35 30 25 20 15 L=22H(CR54), CL=94F(Tantalum) SD:MA737, Tr:XP161A1355P 100 Efficiency:EFFI (%) PFM Duty Ratio:PFMDTY (%) 20 XC6368A333MR (300kHz,3.3V) VIN=1.98V, IOUT=0.1mA 10 80 60 40 20 VIN=1.98V IOUT=130mA 0 -40 -20 0 20 40 60 Ambient Temp.:Ta () 80 (14) OPERATING START VOLTAGE vs. AMBIENT TEMPERATURE -40 Operating Hold Voltage:VHLD (V) 1.0 0.8 0.6 0.4 0.2 IOUT=1mA 0.0 -40 -20 0 20 40 60 Ambient Temp.:Ta () 0 20 40 60 Ambient Temp.:Ta () 80 XC6368B103MR (300kHz,2.8V L=22H(CR54), CL=94F(Tantalum) SD:MA737,Tr:2SD1628G 1.2 -20 (15) OPERATING HOLD VOLTAGE vs. AMBIENT TEMPERATURE XC6368B103MR (300kHz,2.8V Operating Start Voltage:VST1 (V) 0 (13) EFFICIENCY vs. AMBIENT TEMPERATURE XC6368A333MR (300kHz,3.3V) 432 -20 Ambient Temp.:Ta () (12) PFM DUTY RATIO vs. AMBIENT TEMPERATURE 40 VDD=VOUT=3.135V 100 Max. Duty Ratio:MAXDTY (%) Oscillation Frequency:FOSC (kHz) XC6368A333MR (300kHz,3.3V) 80 L=22H(CR54), CL=94F(Tantalum) SD:MA737,Tr:2SD1628G 0.8 0.6 0.4 0.2 IOUT=1mA 0.0 -40 -20 0 20 40 60 Ambient Temp.:Ta () 80 XC6367/6368 Series (17) SOFT START TIME vs. AMBIENT TEMPERATURE XC6368A333MR (300kHz,3.3V) XC6368A503MR (300kHz,5.0V) 20 1.0 Soft Start Time:TSS (ms) Oscillation Start Voltage:VST2 (V) (16) OSCILLATION START VOLTAGE vs. AMBIENT TEMPERATURE 0.8 0.6 0.4 0.2 0.0 -40 -20 0 20 40 60 15 10 5 0 -40 80 -20 Ambient Temp.:Ta () (18) CE "L"VOLTAGE vs. AMBIENT TEMPERATURE 40 60 80 4 XC6368A333MR (300kHz,3.3V) VDD=3.135V 0.8 0.6 0.4 0.2 0.0 VDD=3.135V 1.0 CE "H" Voltage:VCEH (V) CE "L" Voltage:VCEL (V) 20 (19) CE "H"VOLTAGE vs. AMBIENT TEMPERATURE XC6368A333MR (300kHz,3.3V) 1.0 0 Ambient Temp.:Ta () 0.8 0.6 0.4 0.2 0.0 -40 -20 0 20 40 60 Ambient Temp.:Ta () 80 -40 -20 0 20 40 60 Ambient Temp.:Ta () 80 433 XC6367/6368 Series (20) LOAD TRANSIENT RESPONSE XC6368A333MR (300kHz,3.3V) 500 3.3 400 3.2 300 3.1 200 3.0 2.9 100mA Output Current 100 100A Output Voltage:VOUT (V) Output Voltage 3.5 Output Current:IOUT (mA) Output Voltage:VOUT (V) 3.4 VIN=1.98V, IOUT=100A100mA 0 VIN=1.98V, IOUT=100mA100A Output Voltage 3.4 500 400 3.3 300 3.2 200 3.1 100mA 100 Output Current 3.0 Time (1.0msec/div) 100A Output Current:IOUT (mA) XC6368A333MR (300kHz,3.3V) 0 Time (50msec/div) 4 XC6368A333MR (300kHz,3.3V) Output Voltage 3.3 400 3.2 300 3.1 200 Output Current 3.0 2.9 100 300 3.2 200 3.1 Output Current 100 XC6368A333MR (300kHz,3.3V) Output Voltage 3.3 400 3.2 300 3.1 200 Output Current 3.0 100 10mA 3.5 500 Output Voltage:VOUT (V) VIN=1.98V, IOUT=10mA100mA 0 Time (5.0msec/div) Output Current:IOUT (mA) Output Voltage:VOUT (V) 100mA 3.0 0 Time (1.0msec/div) 434 400 3.3 XC6368A333MR (300kHz,3.3V) 2.9 500 1mA 1mA 100mA Output Voltage 3.4 Time (1.0msec/div) 3.4 VIN=1.98V, IOUT=100mA1mA VIN=1.98V, IOUT=100mA10mA 3.4 Output Voltage 3.3 200 100mA 10mA 0 400 300 3.2 3.1 500 100 Output Current 3.0 0 Time (2.0msec/div) Output Current:IOUT (mA) 100mA 3.5 500 Output Voltage:VOUT (V) VIN=1.98V, IOUT=1mA100mA Output Current:IOUT (mA) Output Voltage:VOUT (V) 3.4 Output Current:IOUT (mA) XC6368A333MR (300kHz,3.3V)