RP108J SERIES Low Input Voltage 3A LDO Regulator NO.EA-203-131022 OUTLINE The RP108J Series are CMOS-based voltage regulator ICs featuring 3A output with low ON-resistance. Each IC of this series consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a fold-back protection circuit, and a thermal shutdown circuit. This series features both low supply current and high output current, and the dropout voltage is much smaller than bi-polar's. The minimum input voltage is as low as 1.6V and the output voltage can be set from 0.8V, therefore it can be connected with the DC/DC converter as the latter power supply for high density LSI that is operated by low output voltage. The output voltage of RP108J081x is externally adjustable by using external divide resistors. The CE pin of the RP108J Series can switch the regulator to standby mode. In addition to a fold-back protection circuit, which is already built in the conventional regulators, this series contain a thermal shutdown circuit, a constant slope circuit as a soft-start function and a reverse current protection circuit. Ceramic capacitors can be used. FEATURES * * * * * * * * * * * * * * * * Output Current ............................................................. Min. 3A Supply Current ............................................................. Typ. 350A Standby Current ........................................................... Typ. 2A Input Voltage Range .................................................... 1.6V to 5.25V Output Voltage Range.................................................. 0.8V to 4.2V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) Output Voltage Accuracy.............................................. 1.0% (15mV accuracy, When VOUT 1.5V) Output Voltage Temperature-drift Coefficient ........... Typ. 100ppm/C Ripple Rejection........................................................... Typ. 65dB (f =1kHz, VOUT=2.8V) Dropout Voltage ........................................................... Typ. 0.51V (VOUT=2.8V) Line Regulation ............................................................ Typ. 0.1%/V Package ....................................................................... TO-252-5-P2 Built-in Fold-back Protection Circuit............................. Typ. 220mA Built-in Thermal Shutdown Circuit................................ Stops at 165C Built-in Constant Slope Circuit Built-in Reverse Current Protection Circuit Ceramic capacitors are recommended to be used with this IC**** 10F or more APPLICATIONS * Power source for battery-powered equipments. * Power source for portable communication equipments such as cameras and VCRs. * Power source for electrical home appliances. 1 RP108J NO.EA-203-131022 BLOCK DIAGRAMS RP108Jxx1B RP108Jxx1D VDD VOUT VDD VOUT VFB VFB Vref Vref Current Limit Thermal Shutdown Current Limit Thermal Shutdown CE GND CE Reverse Detecter GND Reverse Detecter SELECTION GUIDE The output voltage, auto discharge function for the ICs can be selected at the user's request. Product Name RP108Jxx1(y) -T1-FE Package Quantity per Reel Pb Free Halogen Free TO-252-5-P2 3,000 pcs Yes Yes xx: The output voltage can be designated in the range of 0.8V(08) to 4.2V(42) in 0.1V steps. y: If the output voltage includes the 3rd digit, indicate the digit of 0.01V. (1.25V, 1.85V, 2.85V) Ex. If the output voltage is 1.25V, RP108J1215-T1-FE. If the output voltage is 1.85V, RP108J1815-T1-FE. If the output voltage is 2.85V, RP108J2815-T1-FE. : Designation of auto-discharge function (B) Auto-discharge function: No (D) Auto-discharge function: Yes Auto-discharge function quickly lowers the output voltage to 0V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor. 2 RP108J NO.EA-203-131022 PIN CONFIGURATIONS TO-252-5-P2 1 2 3 4 5 PIN DESCRIPTIONS zTO-252-5-P2 Pin No. Symbol Description 1 CE Chip Enable Pin ("H" Active) 2 VDD Input Pin 3 GND Ground Pin 4 VOUT Output Pin 5 VFB Feedback Pin ) Tab is GND level. (They are connected to the reverse side of this IC.) The VOUT pin should be connected to the VFB pin when using RP108J as an internal fixed output voltage type. In case of using RP108J as an external adjustable type, please refer to "Adjustable Output Voltage Type Settings" ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit 6.0 V VIN Input Voltage VCE Input Voltage (CE Input Pin) -0.3 to 6.0 V VFB Input Voltage (VFB Pin) -0.3 to 6.0 V VOUT Output Voltage -0.3 to VIN+0.3 V PD Power Dissipation (TO-252-5-P2)* Standard Land Pattern 1900 Power Dissipation (TO-252-5-P2)* High Wattage Land Pattern 3800 mV Topt Operating Temperature -40 to +85 C Tstg Storage Temperature -55 to +125 C ) For Power Dissipation, please refer to PACKAGE INFORMATION. ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured. 3 RP108J NO.EA-203-131022 ELECTRICAL CHARACTERISTICS VIN=VSET*2+1.0V, IOUT =1mA, CIN=COUT=10F, unless otherwise noted. The specifications surrounded by are guaranteed by Design Engineering at - 40C Ta 85C. RP108Jxx1B/D Symbol (Ta=25C) Item Conditions Ta=25C VOUT Output Voltage -40C Ta 85C ILIM Min. Typ. Max. Unit VSET > 1.5V x0.99 x1.01 V VSET 1.5V -15 15 mV VSET > 1.5V x0.97 x1.02 V VSET 1.5V -45 30 mV Output Current Limit A 3.0 1mA IOUT 300mA -15 2.0 20 1mA IOUT 3000mA -70 3.0 50 VOUT /IOUT Load regulation VDIF Dropout Voltage ISS Supply Current IOUT=0mA 350 500 A Istandby Standby Current VCE=0 2.0 5.0 A VOUT /VIN Line Regulation VSET +0.5V VIN 5.25V, IOUT=1mA (When VSET 1.1V, VIN = 1.6V) 0.10 0.15 %/V VIN Input Voltage*3 5.25 V RR Ripple Rejection mV Please refer to Dropout Voltage on the next page. 1.6 f=1kHz, Ripple 0.2Vp-p IOUT=100mA VSET 2.8V 65 dB VSET > 2.8V 55 dB Output Voltage -40C Ta 85C Temperature Coefficient 100 ppm /C ISC Short Current Limit 220 mA IPD CE Pull-down Current VCEH CE Input Voltage "H" VCEL CE Input Voltage "L" VOUT /Ta en TTSD TTSR RLOW IREV Output Noise Thermal Shutdown Temperature Thermal Shutdown Released Temperature Auto-discharge Nch Tr. ON Resistance (D version) Reverse Current Limit VOUT=0V 0.3 0.6 A V 1.0 0.4 V BW=10Hz to 100kHz 70 Vrms Junction Temperature 165 C Junction Temperature 95 C VIN=4.0V, VCE=0V 30 VOUT > 0.5V, 0V VIN 5.25V 10 A All test items listed under Electrical Characteristics are done under the pulse load condition (TjTa=25C) except Ripple Rejection, Output Voltage Temperature Coefficient, Output Noise and Thermal Shutdown. *2 VSET=Set Output Voltage 3 The maximum input voltage listed under Electrical Characteristics is 5.25V. If for any reason the input voltage exceeds 5.25V, it has to be no more than 5.5V with 500 cumulative operating hours. 4 RP108J NO.EA-203-131022 The specifications surrounded by are guaranteed by Design Engineering at - 40C Ta 85C. Dropout Voltage by Output Voltage Output Voltage VSET (V) (Ta=25C) Dropout Voltage VDIF (V) Typ. Max. 0.8 VSET < 0.9 0.910 1.110 0.9 VSET < 1.0 0.865 1.000 1.0 VSET < 1.1 0.810 0.950 0.755 0.895 0.720 0.840 1.5 VSET < 2.5 0.630 0.760 2.5 VSET < 3.3 0.510 0.600 3.3 VSET 4.2 0.480 0.560 1.1 VSET < 1.2 1.2 VSET < 1.5 Condition IOUT=3000mA RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS) All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions. 5 RP108J NO.EA-203-131022 TYPICAL APPLICATIONS VDD VOUT VOUT RP108J series C1 VFB CE C2 GND Typical Application (External Components) C1,C2: Ceramic Capacitors 10F Kyocera CMX7R106M06AB When using the RP108J Series, please consider the following points. When using an internally fixed output voltage type, please connect the VOUT pin to the VFB pin. However, in the case of using the Adjustable Output Voltage Type, please follow the "Technical Notes on External Adjustable Output Voltage Type". Phase Compensation In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, use a 10F or more capacitor C2. In case of using a tantalum capacitor, and its ESR is large, the output may be unstable. Therefore, select C2 carefully considering its frequency characteristics. The recommended temperature characteristics for C1 and C2 capacitors are the followings. B Characteristics: Temperature range from -25C to +85C, Capacitance change of 10% X5R Characteristics: Temperature range from -55C to +85C, Capacitance change of 15% X7R Characteristics: Temperature range from -55C to +125C, Capacitance change of 15% The recommended capacitor's tolerable voltage is twice as large as the voltage of use (C1: Input voltage, C2: Output voltage). The upper limit of the capacitance value for C2 is 100F. PCB Layout Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a capacitor C1 with a capacitance value as much as 10F or more between VDD and GND pin, and as close as possible to the pins. Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring as short as possible. 6 RP108J NO.EA-203-131022 TECHNICAL NOTES ON EXTERNAL ADJUSTABLE OUTPUT VOLTAGE TYPE VDD RP108J081x C1 VOUT VOUT R1 C2 VFB R2 CE GND Typical application for adjustable output voltage type (External Components) C1,C2: Ceramic Capacitors 10F Kyocera CMX7R106M06AB When using RP108J081x, please consider the following points. The output voltage of the externally adjustable output voltage type should be set to 4.2V or less. Also, total resistors value of R1 and R2 should be 20k or less. Phase Compensation Similar to the Internally Fixed Output Voltage Type, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, use a 10F or more capacitor C2. In case of using a tantalum capacitor, and its ESR is large, the output may be unstable. Therefore, select C2 carefully considering its frequency characteristics. The recommended temperature characteristics for C1 and C2 capacitors are the followings. B Characteristics: Temperature range from -25C to +85C, Capacitance change of 10% X5R Characteristics: Temperature range from -55C to +85C, Capacitance change of 15% X7R Characteristics: Temperature range from -55C to +125C, Capacitance change of 15% The recommended capacitor's tolerable voltage is twice as large as the voltage of use (C1: Input voltage, C2: Output voltage). The upper limit of the capacitance value for C2 is 100F. PCB Layout Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a capacitor C1 with a capacitance value as much as 10F or more between VDD and GND pin, and as close as possible to the pins. Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring as short as possible. Transient Response When using the Adjustable Output Voltage Type, the transient response could be affected by the external resistors. Evaluate the circuit taking the actual conditions of use into account. 7 RP108J NO.EA-203-131022 ADUSTABLE OUTPUT VOLTAGE TYPE SETTINGS * Output Voltage Setting Method RP108J081x can be adjusted the output voltage by using the external divider resistors. If the VFB voltage fixed into the IC is described as setVFB, the output voltage can be set by using the following equations SetVFB is equal to 0.8V. The VOUT pin of RP108J081x should be connected to the VFB pin. VOUT R1 I1 VFB RIC R2 GND VOUT IIC I2 SetVFB I1= IIC + I2...................................................................................................................................(1) I2= setVFB / R2...........................................................................................................................(2) Thus, I1= IIC + setVFB /R2 .....................................................................................................................(3) Therefore, VOUT= setVFB x R1 x I1 ...............................................................................................................(4) Put Equation (3) into Equation (4), then VOUT = setVFB + R1(IIC + setVFB / R2) = setVFB x (1+R1/ R2) + R1 x IIC .........................................................................................(5) In Equation (5), R1x IIC is the error-causing factor in VOUT. As for IIC, IIC= setVFB / RIC ..........................................................................................................................(6) Therefore, the error-causing factor R1x IIC can be described as follows. R1xIIC= R1 x setVFB / RIC = setVFB x R1 / RIC ...........................................................................................................(7) For better accuracy, choosing R1 (<<RIC) reduces this error. Without the error-causing factor R1x IIC, the output voltage can be calculated by the following equation VOUT = setVFB x ((R1 + R2) / R2) ..............................................................................................(8) RIC of RP108J is approximately Typ.1.6M (Topt=25C, this value is guaranteed by design.). The value could be affected by the temperature, therefore evaluate the circuit taking the actual conditions of use into account. 8 RP108J NO.EA-203-131022 REVERSE CURRENT PROTECTION CIRCUIT The RP108J Series include a Reverse Current Protection Circuit, which stops the reverse current from VOUT pin to VDD pin or to GND pin when VOUT becomes higher than VIN. Usually, the LDO using Pch output transistor contains a parasitic diode between VDD pin and VOUT pin. Therefore, if VOUT is higher than VIN, the parasitic diode becomes forward direction. As a result, the current flows from VOUT pin to VDD pin. The ICs of this series switches the mode to the reverse current protection mode before VIN becomes lower than VOUT by connecting the parasitic diode of Pch output transistor to the backward direction, and connecting the gate to VOUT pin. As a result, the Pch output transistor is turned off and the all the current pathways from VOUT pin to GND pin are shut down to maintain the reverse current lower than 10A. Switching to either the normal mode or to the reverse current protection mode is determined by the magnitude of VIN voltage and VOUT voltage. For the stable operation, offset and hysteresis are set as the threshold. Offset is set to 30mV (Typ.25C) and hysteresis is set to 5mV (Typ.25C). Therefore, the minimum dropout voltage under the small load current condition is restricted by the value of 35mV (Typ.25C). Fig.1 and Fig.2 show the diagrams of each mode, and Fig.3 shows the load characteristics of each mode. When giving the VOUT pin a constant-voltage and decreasing the VIN voltage, the dropout voltage will become lower than 30mV (Typ.25C). As a result, the reverse current protection starts to function to stop the load current. By increasing the dropout voltage higher than 35mV (Typ.25C), the protection mode will be released to let the load current to flow. If the dropout voltage to be used is lower than 30mV (Typ.25C), the detection and the release may be repeated. Fig. 2 Reverse Current Protection Mode VIN/VOUT [V] V IN V REV_ REL 35mV V REV_ 30mV DET V OUT IOUT IOUT/IREV Output/Reverse Current Input/Output Voltage Fig. 1 Normal Mode Normal Mode Reverse Current Protection Mode Normal Mode 0 IREV Fig. 3 Reverse Current Protection Mode Detection/ Release & Reverse Current/ Output Current Characteristics 9 RP108J NO.EA-203-131022 CONSTANT SLOPE CIRCUIT RP108J Series has a Constant Slope Circuit as a function which prevents the overshoot of the output voltage. The constant slope is a kind of soft-start circuit which allows the output voltage to start up gradually. The capacitor to create the start-up slope is built-in the IC that doesn't require any external components. The start-up time and start-up slope angle are fixed inside the IC. If the capacitance of the external output capacitor becomes more than the certain capacitance, the output current limit circuit minimizes the incoming current of the output capacitor at the start-up. As a result, the start-up time becomes longer and the start-up slope angle becomes more gentle. The constant slope circuit is an especially effective function for large current product like 3A output, because driver's ability is high, and it allows a large current to flow at the start-up. Inrush current limit circuit of conventional products Constant Slope Circuit (Imaginary graph) CE Input Voltage CE CE InputCE Voltage Output Voltage Output Voltage Inrush Current Inrush Current Time (s) 10 Time (s) RP108J NO.EA-203-131022 PACKAGE INFORMATION Power Dissipation (TO-252-5-P2) Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the Measurement Conditions below. * Measurement conditions Standard Land Pattern Environment Ultra High Wattage Land Pattern Mounting on board (Wind velocity 0m/s) Board Material Glass cloth epoxy plastic (Double layers) Glass cloth epoxy plastic (Four-layers) Board Dimensions 50mm x 50mm x 1.6mm 76.2mm x 114.3mm x 0.8mm Copper Ratio Top side: Approx. 50%, Back side: Approx. 50% Top, Back side: Approx. 96%, 2nd, 3rd: 100% Through - hole 0.5mm x 24pcs 0.4mm x 30pcs * Measurement Results (Ta=25C, Tjmax=125C) Standard Land Pattern Ultra High Wattage Land Pattern Power Dissipation 1900mW 3800mW Thermal Resistance ja=(125-25C)/1.9W= 53C/W ja= (125-25C)/3.8W = 26C/W jc= 17C/W jc= 7C/W 4800 5000 76.2 50 On Boar d (Ultra High Wattage Land Pattern) 50 40 4000 3800 2350 2000 50 3000 50 1900 114.3 Power Dissipation P D (mW) * 1000 On Board 0 0 25 50 75 100 125 105 Ambient Temperature (C) 150 Standard Power Dissipation Ultra High Wattage Measurement Board Pattern IC Mount Area (Unit : mm) The above graph shows the Power Dissipation of the package based on Tjmax=125C and Tjmax=150C. Operating the IC in the shaded area in the graph might have an influence its lifetime. Operating time must be within the time limit described in the table below, in case of operating in the shaded area. Operating Time Estimated years (Operating 4 hours/day) 13,000 hours 9 years 11 RP108J NO.EA-203-131022 PACKAGE DIMENSIONS (TO-252-5-P2) 6.600.20 5 2 .3 00 .2 0 0.500.10 0.10 0.500.10 +0 .26 (08) 1 .5 2-0 .13 (6 .2 0 ) (1 .0 0 ) 1 .1 00 .2 0 9 .9 00 .3 0 (00 .1 2 7 ) S 1 6 .1 00 .2 0 C0.60 5.340.20 (1 .0 0 ) * 0.500.10 0.12 M 2 .7 00 .2 0 1.27 (3 . 5 6 ) (5.04) (4 . 0 6 ) The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate level). It is recommended that the tab be connected to the ground plane on the board, or otherwise be left floating. R0.325 (1.50) R0.225 (4.19) * (Unit: mm) MARK SPECIFICATION (TO-252-5-P2) 12 cdefghij: Product Code...Refer to MARK SPECIFICATION TABLE kl: Lot Number ... Alphanumeric Serial Number RP108J NO.EA-203-131022 * RP108J Series Mark Specification Table (TO-252-5-P2) RP108Jxx1B RP108Jxx1D VSET Part Number cdefghij VSET RP108J081B RP108J091B E1J081B E1J091B 0.8V 0.9V RP108J081D RP108J091D E1J081D E1J091D 0.8V 0.9V RP108J101B RP108J111B RP108J121B RP108J131B RP108J141B RP108J151B RP108J161B E1J101B E1J111B E1J121B E1J131B E1J141B E1J151B E1J161B 1.0V 1.1V 1.2V 1.3V 1.4V 1.5V 1.6V RP108J101D RP108J111D RP108J121D RP108J131D RP108J141D RP108J151D RP108J161D E1J101D E1J111D E1J121D E1J131D E1J141D E1J151D E1J161D 1.0V 1.1V 1.2V 1.3V 1.4V 1.5V 1.6V RP108J171B RP108J181B RP108J191B RP108J201B RP108J211B RP108J221B RP108J231B RP108J241B RP108J251B RP108J261B RP108J271B RP108J281B RP108J291B RP108J301B RP108J311B RP108J321B RP108J331B RP108J341B E1J171B E1J181B E1J191B E1J201B E1J211B E1J221B E1J231B E1J241B E1J251B E1J261B E1J271B E1J281B E1J291B E1J301B E1J311B E1J321B E1J331B E1J341B 1.7V 1.8V 1.9V 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V RP108J171D RP108J181D RP108J191D RP108J201D RP108J211D RP108J221D RP108J231D RP108J241D RP108J251D RP108J261D RP108J271D RP108J281D RP108J291D RP108J301D RP108J311D RP108J321D RP108J331D RP108J341D E1J171D E1J181D E1J191D E1J201D E1J211D E1J221D E1J231D E1J241D E1J251D E1J261D E1J271D E1J281D E1J291D E1J301D E1J311D E1J321D E1J331D E1J341D 1.7V 1.8V 1.9V 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V RP108J351B RP108J361B RP108J371B RP108J381B RP108J391B RP108J401B RP108J411B RP108J421B RP108J121B5 RP108J181B5 RP108J281B5 E1J351B E1J361B E1J371B E1J381B E1J391B E1J401B E1J411B E1J421B E1J121B5 E1J181B5 E1J281B5 3.5V 3.6V 3.7V 3.8V 3.9V 4.0V 4.1V 4.2V 1.25V 1.85V 2.85V RP108J351D RP108J361D RP108J371D RP108J381D RP108J391D RP108J401D RP108J411D RP108J421D RP108J121D5 RP108J181D5 RP108J281D5 E1J351D E1J361D E1J371D E1J381D E1J391D E1J401D E1J411D E1J421D E1J121D5 E1J181D5 E1J281D5 3.5V 3.6V 3.7V 3.8V 3.9V 4.0V 4.1V 4.2V 1.25V 1.85V 2.85V Part Number cdefghij 13 RP108J NO.EA-203-131022 TEST CIRCUITS VDD VOUT RP108J Series C1 C2 VFB CE V VOUT IOUT GND C1=Ceramic 10F C2=Ceramic 10F Basic Test Circuit VDD VOUT VOUT RP108J Series A ISS C1 VFB CE C2 GND C1=Ceramic 10F C2=Ceramic 10F Test Circuit for Supply Current VDD VOUT VOUT RP108J Series A ISS C1 VFB CE C2 GND C1=Ceramic 10F C2=Ceramic 10F Test Circuit for Standby Current 14 RP108J NO.EA-203-131022 TEST CIRCUITS for Adjustable Output Voltage Type (RP108J081x) Please refer to "Technical Notes on Adjustable Output Voltage Type" when using R1 and R2 as output capacitors. VDD VOUT R1 C2 RP108J081x RP132x SeriesVFB C1 V VOUT IOUT R2 CE GND C1=Ceramic 10F C2=Ceramic 10F Basic Test Circuit VDD A ISS C1 VOUT VOUT RP108J081x RP132x SeriesVFB R1 C2 R2 CE GND C1=Ceramic 10F C2=Ceramic 10F Test Circuit for Supply Current VDD A ISS C1 VOUT VOUT RP108J081x RP132x SeriesVFB R1 C2 R2 CE GND C1=Ceramic 10F C2=Ceramic 10F Test Circuit for Standby Current 15 RP108J NO.EA-203-131022 TYPICAL CHARACTERISTICS 1Output Voltage vs. Input VoltageC1=Ceramic10F, C2=Ceramic10F, Topt=25C RP108x081x RP108x151x 0.9 1.8 0.7 Output Voltage VOUT (V) Output Voltage VOUT (V) 0.8 0.6 0.5 0.4 Iout=1mA 0.3 Iout=100mA 0.2 Iout=1A 0.1 0 0 1 2 3 4 1.5 1.2 0.9 Iout=1mA Iout=100mA 0.6 Iout=1A 0.3 0 5 0 1 Input Voltage V IN (V) 2.8 4.9 Output Voltage VOUT (V) Output Voltage VOUT (V) 5.6 2.4 2 Iout=1mA Iout=100mA 0.8 4 5 RP108x421x 3.2 1.2 3 Input Voltage V IN (V) RP108x281x 1.6 2 Iout=1A 0.4 4.2 3.5 2.8 2.1 Iout=1mA 1.4 Iout=100mA 0.7 0 Iout=1A 0 0 1 2 3 4 5 0 1 Input Voltage V IN (V) 2 3 4 5 Input Voltage V IN (V) 2Supply Current vs. Input VoltageC1=Ceramic10F, C2=Ceramic10F, IOUT=0A, Topt=25C RP108x151x 450 450 400 400 Supply Current ISS (A) Supply Current ISS (A) RP108x081x 350 300 250 200 150 100 50 300 250 200 150 100 50 0 0 0 1 2 3 Input Voltage V IN (V) 16 350 4 5 0 1 2 3 Input Voltage V IN (V) 4 5 RP108J NO.EA-203-131022 RP108x421x 450 450 400 400 Supply Current ISS (A) Supply Current ISS (A) RP108x281x 350 300 250 200 150 100 50 350 300 250 200 150 100 50 0 0 0 1 2 3 4 5 0 Input Voltage V IN (V) 1 2 3 4 5 Input Voltage V IN (V) 3Short Current Limit vs. Temperature/ Current Limit vs. Temperature RP108J includes a Fold-back Protection Circuit, while a Fold-back Protection Circuit is operated, Thermal Shutdown Circuit starts to operate. Therefore RP108J isn't allowed to test "Output voltage vs. Output Current" on condition that a Thermal Shutdown Circuit is operated to prevent heat generated by itself. Refer to " 3) Short Current Limit vs. Temperature / Current Limit vs. Temperature for short current limit and current limit characteristics. RP108x081x RP108x081x 300 4500 Current Limit (mA) Short Current Limit (mA) 5000 4000 3500 3000 2500 2000 -40 -50 280 260 240 220 200 -25 0 25 50 75 85 Temperature Topt (C) -40 -50 -25 0 25 50 Temperature Top (C) 75 85 17 RP108J NO.EA-203-131022 4Supply Current vs. TemperatureC1=Ceramic10F, C2=Ceramic10F,IOUT=0A RP108x151x 400 390 400 390 380 370 380 370 Supply Current ISS (A) Supply Current ISS (A) RP108x081x 360 350 340 330 320 310 300 -40 -50 -25 0 25 75 85 50 Temperature Topt (C) 360 350 340 330 320 310 300 -40 -50 -25 0 25 50 75 85 Temperature Topt (C) 5Dropout Voltage vs. Output CurrentC1=Ceramic10F, C2=Ceramic10F RP108x251x 700 Dropout Voltage V DIF (mV) 600 500 85 400 25 -40 300 200 100 0 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Output Current IOUT (A) 6Dropout Voltage vs. Set Output VoltageC1=Ceramic10F, C2=Ceramic10F, Topt=25C Dropout Voltage V DIF (mV) 1200 1000 3A 800 300mA 600 400 200 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Set Output Voltage V REG (V) 18 4.0 4.5 RP108J NO.EA-203-131022 7Ripple Rejection vs. Input VoltageC1=C2=10F, Ripple=0.2Vp-p, IOUT=100mA Topt=25C RP108x251x 100 100 90 90 80 80 Ripple Rejection (dB) Ripple Rejection (dB) RP108x081x 70 60 50 40 0.1kHz 1kHz 10kHz 100kHz 30 20 10 70 60 50 0.1kHz 1kHz 10kHz 100kHz 40 30 20 10 0 0 1 2 3 4 5 2 3 Input Voltage V IN (V) 4 5 Input Voltage V IN (V) RP108x421x 100 Ripple Rejection (dB) 90 80 70 60 0.1kHz 1kHz 10kHz 100kHz 50 40 30 20 10 0 4.00 4.25 4.50 4.75 5.00 5.25 Input Voltage V IN (V) 8Ripple Rejection vs. FrequencyC1=none, C2=10F, IOUT=100mA, Topt=25C RP108x081x RP108x421x V IN=1.8V,Ripple=0.2Vp-p 120 100 Ripple Rejection (dB) 100 Ripple Rejection (dB) V IN=5.2V,Ripple=0.2Vp-p 120 80 60 40 20 80 60 40 20 0 0 0.1 1 10 Frequancy f (kHz) 100 1000 0.1 1 10 100 1000 Frequancy f (kHz) 19 RP108J NO.EA-203-131022 9Input Transient ResponseC1=none, C2=10F, IOUT=30mA, tr=tf=5s, Topt=25C 3.0 4.22 6 0.83 2.5 4.21 5 0.82 2.0 Input Voltage 0.81 1.5 0.80 1.0 0.79 Output Voltage 0.78 0.5 Output Voltage V OUT (V) 0.84 0.0 -20 -10 0 4.20 4 Input Voltage 4.19 4.18 3 Output Voltage 2 4.17 1 4.16 10 20 30 40 50 60 70 80 Input Voltage VIN (V) RP108x421x Input Voltage VIN (V) Output Voltage VOUT (V) RP108x081x 0 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Time t (s) Time t (ms) 10Load Transient ResponseC1=C2=10F, tr=tf=0.5s, Topt=25C RP108x081x 0 0.81 0.80 0.79 0.78 -40 -20 Output Voltage 0 20 40 3 Output Current 1mA 3A 0.85 0.80 0.75 RP108x421x RP108x421x 0 4.19 4.18 Output Voltage 0 20 40 60 80 100 120 140 160 Output Voltage V OUT (V) 500 Time t (s) 20 V IN=5.25V 1000 Output Curren IOUT (mA) Output Voltage V OUT (V) V IN=5.25V 4.16 -40 -20 Output Voltage Time t (ms) Time t (s) 4.17 0 0.70 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 -0.4 -0.2 0.0 60 80 100 120 140 160 Output Current 100mA 500mA 6 6 3 Output Current 1mA 3A 4.25 4.20 4.15 Output Voltage 4.10 -0.4 -0.2 0.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Time t (ms) 0 Output Current IOUT (mA) 0.82 Output Voltage V OUT (V) 500 Output Current 100mA 500mA V IN=1.8V 1000 Output Current IOUT (mA) Output Voltage V OUT (V) V IN=1.8V Output Current IOUT (mA) RP108x081x RP108J NO.EA-203-131022 11Turn on Speed with CE pinC1=Ceramic10F, C2=Ceramic10F, Topt=25C RP108x151x 1.0 0 0.0 Iout=1mA Iout=100mA Iout=300mA 1.0 0.5 Output Voltage V OUT (V) 2.0 2.0 Iout=1mA Iout=100mA Iout=300mA 0.5 50 100 150 200 250 300 350 400 450 Time t (s) RP108x281x RP108x421x V IN=3.8V V IN=5.2V 4.5 1.5 Iout=1mA Iout=100mA Iout=300mA 0 0.0 3.0 2.0 1.0 6.0 4.0 Output Voltage V OUT (V) 3.0 CE Input Voltage VCE (V) Output Voltage V OUT (V) 0 0.0 1.0 Time t (s) 0 0.0 -50 0 1.0 1.5 0 0.0 -50 0 50 100 150 200 250 300 350 400 450 3.0 Iout=1mA Iout=100mA Iout=300mA 0 0.0 4.5 3.0 1.5 0 0.0 -50 0 50 100 150 200 250 300 350 400 450 2.0 CE Input Voltage VCE (V) 0 0.0 -50 0 V IN=2.5V 3.0 CE Input Voltage VCE (V) Output Voltage V OUT (V) V IN=1.8V CE Input Voltage VCE (V) RP108x081x 50 100 150 200 250 300 350 400 450 Time t (s) Time t (s) 12Turn off Speed with CE pinC1=Ceramic10F, C2=Ceramic10F, Topt=25C RP108x151x 1.0 0 0.0 1.0 0.5 0 0.0 Output Voltage V OUT (V) 2.0 Iout=1mA Iout=100mA Iout=300mA V IN=2.5V 3.0 CE Input Voltage VCE (V) Output Voltage V OUT (V) V IN=1.8V 3.0 2.0 1.0 0 0.0 1.5 Iout=1mA Iout=100mA Iout=300mA 1.0 0.5 CE Input Voltage VCE (V) RP108x081x 0.0 0 -1 0 1 2 3 4 5 Time t (ms) 6 7 8 9 -1 0 1 2 3 4 5 6 7 8 9 Time t (ms) 21 RP108J NO.EA-203-131022 RP108x421x 1.5 0 0.0 Iout=1mA Iout=100mA Iout=300mA 2.0 1.0 Output Voltage V OUT (V) 3.0 3.0 V IN=5.2V 4.5 CE Input Voltage VCE (V) Output Voltage V OUT (V) V IN=3.8V 6.0 4.0 2.0 0 0.0 4.5 Iout=1mA Iout=100mA Iout=300mA 3.0 1.5 CE Input Voltage VCE (V) RP108x281x 0 0.0 0 0.0 -1 0 1 2 3 4 5 6 7 8 9 -1 0 Time t (ms) 1 2 3 4 5 6 7 8 9 Time t (ms) 13Inrush Current IOUT=100mA,V IN=1.8V 1.0 0.5 0 0.0 150 100 50 0 -50 0 -50 50 100 150 200 250 300 350 400 450 Time t (s) 22 CE Input Voltage VC E (V)/ O utput Voltage V OUT (V) 1.5 6.0 Supply Current ISS (mA) CE Input Voltage VC E (V) / O utput Voltage V OU T (V) 2.0 RP108x421x IOUT=100mA,V IN=5.2V 4.5 3.0 1.5 0 0.0 300 200 100 0 -100 -50 0 50 100 150 200 250 300 350 400 450 Time t (s) Supply Current ISS (mA) RP108x081x RP108J NO.EA-203-131022 ESR vs. Output Current When using these ICs, consider the following points: The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions when the white noise level is under 40V (Avg.) are marked as the hatched area in the graph. Measurement Conditions Frequency Band : 10Hz to 2MHz Temperature : -40C to 85C Hatched area : Noise level is under 40V C1,C2 :10.0F or more RP108x081x RP108x421x VIN=1.6V5.25V 100 10 ESR () 10 ESR () V IN=4.2V5.25V 100 1 1 85C 0.1 85C 0.1 -40C 0.01 -40C 0.01 0 1000 2000 Output Current IOUT (mA) 3000 0 1000 2000 3000 Output Current IOUT (mA) 23 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. 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