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VOLTAGE REGULATOR
R×5RL SERIES
APPLICATION MANUAL
ELECTRONIC DEVICES DIVISION
NO.EA-022-9803
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NOTICE 1. The products and the product specifications described in this application manual are subject to change or dis- continuation 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. This application manual may not be copied or otherwise reproduced in whole or in part without prior written con- sent of Ricoh. 3. Please be sure to take any necessary form
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R· 5RL SERIES APPLICATION MANUAL CONTENTS ...................................................................................................... OUTLINE 1 .................................................................................................... FEATURES 1 ............................................................................................. APPLICATIONS 1 ......................................................................................... BLOCK DIAGRAM 1 ..................
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VOLTAGE REGULATOR R· 5RL SERIES OUTLINE The R· 5RL Series are voltage regulator ICs with high accuracy output voltage and ultra-low quiescent cur- rent by CMOS process. Each of these ICs consists of a voltage reference unit, an error amplifier, a driver tran- sistor, and resistors for setting output voltage. The output voltage is fixed with high accuracy. Three types of packages, TO-92, SOT-89 (Mini-power Mold), SOT-23-5 (Mini-mold), are available. FEATURES ........................... • Ultra-l
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} } SELECTION GUIDE The package type, the output voltage, the packing type, and the taping type of R· 5RL Series can be designated at the user's request by specifying the part number as follows: R· 5RL· · · · – · · ‹ Part Number › › › › › a b c d e Code Contents Designation of Package Type: E: TO-92 a H: SOT-89 (Mini-power Mold) N: SOT-23-5 (Mini-mold) Setting Output Voltage (VOUT): b Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible. c A Designation of Packing
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R· 5RL PIN CONFIGURATION • TO-92 • SOT-89 • SOT-23-5 5 4 (mark side) (mark side) (mark side) 1 2 3 1 2 3 1 2 3 PIN DESCRIPTION • TO-92 • SOT-89 • SOT-23-5 Pin No. Symbol Pin No. Symbol Pin No. Symbol 1 GND 1 GND 1 GND 2 VIN 2 VIN 2 VIN 3 VOUT 3 VOUT 3 VOUT 4 NC 5 NC 3
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R· 5RL ABSOLUTE MAXIMUM RATINGS Topt=25˚C Symbol Item Rating Unit VIN Input Voltage +12 V VOUT Output Voltage –0.3 to VIN +0.3 V IOUT Output Current 150 mA PD1 Power Dissipation 1 (NOTE1) 300 mW PD2 Power Dissipation 2 (NOTE2) 150 mW Topt Operating Temperature – 30 to +80 ˚C Tstg Storage Temperature – 55 to +125 ˚C Tsolder Lead Temperature (Soldering) 260˚C,10s (NOTE 1) applied to SOT-89 and TO-92 (NOTE 2) applied to SOT-23-5 ABSO
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R· 5RL ELECTRICAL CHARACTERISTICS • R· 5RL20A Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit VIN=4.0V VOUT Output Voltage 1.950 2.000 2.050 V 10µA≤IOUT≤10mA IOUT Output Current VIN=4.0V 25 35 mA ΔVOUT VIN=4.0V Load Regulation 30 45 mV ΔIOUT 1mA≤IOUT≤35mA VDIF Dropout Voltage IOUT=1mA 60 90 mV ISS Quiescent Current VIN=4.0V 1.0 3.0 A µ ΔVOUT IOUT=1mA Line Regulation 0.05 0.2 %/V ΔVIN VOUT+0.5V≤VIN≤10V VIN Input Voltage 10 V ΔVOUT Output Voltage IOUT=10mA ±100 ppm/˚C ΔTopt Temperature Coeffi
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• R· 5RL40A Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit VIN=6.0V 3.900 4.000 4.100 V VOUT Output Voltage 10µA≤IOUT≤10mA IOUT Output Current VIN=6.0V 45 65 mA ΔVOUT VIN=6.0V Load Regulation 50 75 mV ΔIOUT 1mA≤IOUT≤65mA VDIF Dropout Voltage IOUT=1mA 25 38 mV ISS Quiescent Current VIN=6.0V 1.2 3.6 µA ΔVOUT IOUT=1mA Line Regulation 0.05 0.2 %/V ΔVIN VOUT+0.5V≤VIN≤10V VIN Input Voltage 10 V ΔVOUT Output Voltage IOUT=10mA ±100 ppm/˚C ΔTopt Temperature Coefficient –30˚C≤Topt≤80˚C • R· 5RL50A T
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• R· 5RL60A Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit VIN=8.0V 5.850 6.000 6.150 V VOUT Output Voltage 10µA≤IOUT≤10mA IOUT Output Current VIN=8.0V 55 80 mA ΔVOUT VIN=8.0V Load Regulation 60 90 mV ΔIOUT 1mA≤IOUT≤80mA VDIF Dropout Voltage IOUT=1mA 25 38 mV ISS Quiescent Current VIN=8.0V 1.3 3.9 µA ΔVOUT IOUT=1mA Line Regulation 0.05 0.2 %/V ΔVIN VOUT+0.5V≤VIN≤10V VIN Input Voltage 10 V ΔVOUT Output Voltage IOUT=10mA ±100 ppm/˚C ΔTopt Temperature Coefficient –30˚C≤TOPt≤80˚C 7
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R· 5RL ELECTRICAL CHARACTEISTICS BY OUTPUT VOLTAGE Output Voltage OutputCurrent Load Regulation Dropout Voltage Part Number VOUT(V) IOUT(mA) ΔVOUT(mV) VDIF (mV) Conditions MIN. TYP. MAX. Conditions MIN. TYP. Conditions TYP. MAX. Conditions TYP. MAX. · R 5RL20A 1.950 2.000 2.050 R· 5RL21A 2.048 2.100 2.152 VIN– 60 90 R· 5RL22A 2.145 2.200 2.255 VOUT · R 5RL23A 2.243 2.300 2.357 =2.0V R· 5RL24A 2.340 2.400 2.460 25 35 30 45 R· 5RL25A 2.438 2.500 2.562 1mA≤ 50 75 R· 5RL26A 2.535 2.600 2.665 IOUT R·
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R· 5RL Topt=25˚C Quiescent Current Line Regulation Input Voltage Output Voltage Tempco. Iss(µA) ΔVOUT/ΔVIN(%/V) VIN(V) ΔVOUT/ΔT(ppm/˚C) Conditions TYP. MAX. Conditions TYP. MAX. MAX. Conditions TYP. 1.0 3.0 1.1 3.3 IOUT =1mA IOUT VIN =10mA VOUT 0.05 0.2 10 ±100 =2.0V VOUT+ –30˚C≤ 0.5V≤ Topt VIN≤ 80˚C 1.2 3.6 ≤10V 1.3 3.9 9
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R· 5RL OPERATION Output Voltage VOUT divided at the node between VOUT VIN Registers R1 and R2 is compared with Reference Voltage Error Amplifire by Error Amplifier, so that a constant voltage is output. – R1 + Vref R2 GND GND FIG. 1 Brock Diagram TEST CIRCUITS ISS IOUT VIN VOUT VIN R×5RL R×5RL VIN VIN VOUT VOUT SERIES SERIES CI Co CI + + + GND GND 1µF 1µF 1µF FIG. 3 Quiescent Current Test Circuit FIG. 2 Test Circuit VIN VOUT R×5RL VOUT SERIES + GND Ro P.G Co 0.1µF FIG. 4 Line Transient
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TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current VIN=5.0V VIN=6.0V 3.1 4.1 3.0 Topt=–30˚C 4.0 Topt=–30˚C 3.9 2.9 25˚C 25˚C 80˚C 80˚C 2.8 3.8 3.7 2.7 0.0 0.0 0 20 40 60 80 100 120 140 160 0 20 40 60 80 100 120 Output Current IOUT(mA) Output Current IOUT(mA) VIN=7.0V 5.1 5.0 Topt=–30˚C 4.9 80˚C 25˚C 4.8 4.7 0.0 0 20 40 60 80 100 120 140 160 Output Current IOUT(mA) 2) Output Voltage vs. Input Voltage Topt=25˚C R· 5RL30A R· 5RL30A Topt=25˚C IOUT=1mA 3.05 3.2 3.04 3.0 3.03 3.02 IOUT=1mA
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R· 5RL Topt=25˚C R· 5RL40A R· 5RL40A Topt=25˚C IOUT=1mA 4.05 4.2 4.04 4.03 4.0 IOUT=1mA 4.02 3.8 4.01 5mA 4.00 3.6 3.99 10mA 3.98 3.4 3.97 3.96 3.2 3.95 3.5 4.0 4.5 4 5 6 7 8 9 10 Input Voltage VIN(V) Input Voltage VIN(V) Topt=25˚C R· 5RL50A Topt=25˚C IOUT=1mA 5.05 5.2 5.04 5.0 5.03 IOUT=1mA 5.02 4.8 5.01 5mA 5.00 10mA 4.6 4.99 4.98 4.4 4.97 4.96 4.2 4.95 4.5 5.0 5.5 5 7 8 9 10 6 Input Voltage VIN(V) Input Voltage VIN(V) 3) Dropout Voltage vs. Output Curret R· 5RL30A R· 5RL40A 2.0 2.0 1.8 1.8
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R· 5RL50A 2.0 1.8 1.6 1.4 1.2 Topt=80˚C 1.0 25˚C 0.8 0.6 –30˚C 0.4 0.2 0.0 0 10 20 30 40 50 Output Current IOUT(mA) 4) Output Voltage vs.Temperature VIN=5.0V VIN=6.0V R· 5RL30A R· 5RL40A IOUT=10mA IOUT=10mA 3.10 4.10 3.08 4.08 3.06 4.06 3.04 4.04 3.02 4.02 3.00 4.00 2.98 3.98 2.96 3.96 2.94 3.94 2.92 3.92 2.90 3.90 –40 –20 0 20 40 60 80 100 –40 –20 0 20 40 60 80 100 Temperature Topt(˚C) Temperature Topt(˚C) VIN=7.0V R· 5RL50A IOUT=10mA 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 –40
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5) Quiescent Current vs. Input Voltage R· 5RL40A Topt=25˚C Topt=25˚C 1.5 1.5 1.4 1.4 1.3 1.3 1.2 1.2 1.1 1.1 1.0 1.0 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 3 4 5 6 7 8 9 10 5 6 7 8 9 10 Input Voltage VIN(V) Input Voltage VIN(V) R· 5RL50A Topt=25˚C 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 4 5 6 7 8 9 10 Input Voltage VIN(V) 6) Quiescent Current vs. Temperature R· 5RL30A R· 5RL40A VIN=5.0V VIN=6.0V 1.5 2.0 1.4 1.9 1.3 1.8 1.2 1.7 1.1 1.6 1.0 1.5 0.9 1.4 0.8 1.3 0.7 1.2 0.6 1.1 0.5 1.0 –40 –2
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7) Dropout Voltage vs. Set Output Voltage R· 5RL50A VIN=7.0V 2.5 0.7 2.4 0.6 2.3 0.5 2.2 2.1 0.4 2.0 0.3 1.9 IOUT=10mA 1.8 0.2 5mA 1.7 0.1 1.6 1mA 1.5 0.0 –40 –20 0 20 80 100 40 60 0 1 2 3 4 5 6 Temperature Topt(˚C) Set Output Voltage Vreg(V) 8) Line Transient Response (1) IOUT=1mA 8.0 Input Voltage 7.5 7.0 6.5 6.0 5.5 Output Voltage 5.0 4.5 4.0 0 1 2 3 4 Time t(ms) 9) Line Transient Response (2) IOUT=10mA 8.0 Input Voltage 7.5 7.0 6.5 6.0 5.5 Output Voltage 5.0 4.5 4.0 0 1 2 3 4 Time t(ms) 1
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R· 5RL TYPICAL APPLICATION In R· 5RL Series, a constant voltage can be obtained without using Capacitors C1 and C2. However, when the VIN VOUT R×5RL VIN VOUT wire connected to Vin is long, use Capacitor C1. Output SERIES + + C1 C2 noise can be reduced by using Capacitor C2. GND Insert Capacitors C1 and C2 with the capacitance of 0.1µF to 2.0µF between Input/Output Pins and GND Pin GND GND with minimum wiring. APPLICATION CIRCUITS • VOLTAGE BOOST CIRCUIT The output voltage can be obtained by th
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R· 5RL • CURRENT BOOST CIRCUIT Output current of 60mA or more can be obtained by Tr.1 the current boost circuit constructed as shown in this cir- cuit diagram. VIN VOUT R×5RL VIN VOUT SERIES + + C2 C1 GND GND GND • CURRENT BOOST CIRCUIT WITH OVERCURRENT LIMIT CIRCUIT A circuit for protecting Tr.1 from the destruction caused by output short-circuit or overcurrent is shown in R2 Tr.1 this circuit diagram. Vbe2 When the voltage reduction caused by the current ( aa Tr.2 IOUT VIN VOUT R×5RL IOUT) whi
