RX5RE40A RICOH | Alldatasheet

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R×5RE SERIES APPLICATION MANUAL NO.EA-016-0006

R×5RE SERIES OUTLINE The R×5RE Series are voltage regulator ICs with high output voltage accuracy and ultra-low quiescent current by CMOS process. Each of these ICs consists of a voltage reference unit, an error amplifier, a driver transistor, and resistors for setting output voltage, and a current limit circuit. By use of these ICs, a con- stant voltage power supply circuit with high efficiency can be constructed because the dropout voltage and quiescent current of these ICs are very small. Furthermore, theses ICs have a built-in current limit circuit. The output voltage of these ICs is fixed with high accuracy. Two types of packages, TO-92 and SOT-89 (Mini-power Mold) are available. possible (refer to Selection Guide)

FEATURES

APPLICATIONS

  • Power source for battery-powered equipment.
  • Power source for cameras, video instruments such as camcorders, VCRs, and hand- held communication equipment.
  • Precision voltage references. BLOCK DIAGRAM Vref VOUT GND VIN

↑↑↑ a b c d e SELECTION GUIDE The package type, the output voltage, the packing type, and the taping type of R×5RE Series can be designated at the user's request by specifying the part number as follows. For example, the product with Package Type SOT-89,Output Voltage 5.0V,Version A and Taping Type T1 are designated by Part Number RH5RE50AA-T1. Code

Contents

Designation of Package Type: a E: TO-92 H: SOT-89 (Mini-power Mold) b Setting Output Voltage (VOUT): Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible. c A Designation of Packing Type: d A: Taping C: Antistatic bag for TO-92 and samples Designation of Taping Type: Ex. TO-92 : RF, RR, TZ e SOT-89: T1, T2 (refer to Taping Specifications) “TZ” and “T1” are prescribed as a standard. R×5RE

  • TO-92 PIN CONFIGURATION
  • SOT-89 PIN DESCRIPTION
  • TO-92
  • SOT-89 Pin No. Symbol GND VIN VOUT Pin No. Symbol GND VIN VOUT (mark side) (mark side) R×5RE

Lead Temperature (Soldering) Rating Unit +12 V –0.3 to VIN+0.3 V 300 mA 300 mW –40 to +85 –55 to +25 260˚C, 10s R×5RE Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits. ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

∆VOUT Load Regulation ∆IOUT VDIF Dropout Voltage ISS Quiescent Current ∆VOUT ∆VIN Line Regulation VIN Input Voltage Ilim Current Limit ∆VOUT Output Voltage ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit VIN=4.0V,IOUT=10mA 1.950 2.000 2.050 V VIN=4.0V mA VIN=4.0V 1mA≤IOUT≤50mA mV IOUT=30mA 0.5 0.7 V VIN=4.0V 1.0 3.0 µA IOUT=10mA VOUT+1.0V≤VIN≤10V 0.1 %/V V 240 mA IOUT=10mA ±100 ppm/˚C Topt=25˚C

  • R×5RE30A Topt=25˚C R×5RE Symbol Item VOUT Output Voltage IOUT Output Current ∆VOUT Load Regulation ∆IOUT VDIF Dropout Voltage ISS Quiescent Current ∆VOUT ∆VIN Line Regulation VIN Input Voltage Ilim Current Limit ∆VOUT Output Voltage ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit VIN=5.0V,IOUT=10mA 2.925 3.000 3.075 V VIN=5.0V mA VIN=5.0V 1mA≤IOUT≤60mA mV IOUT=40mA 0.5 0.7 V VIN=5.0V 1.1 3.3 µA IOUT=10mA VOUT+1.0V≤VIN≤10V 0.1 %/V V 240 mA IOUT=10mA ±100 ppm/˚C
  • R×5RE50A Topt=25˚C R×5RE
  • R×5RE40A Topt=25˚C Symbol Item VOUT Output Voltage IOUT Output Current ∆VOUT Load Regulation ∆IOUT VDIF Dropout Voltage ISS Quiescent Current ∆VOUT ∆VIN Line Regulation VIN Input Voltage Ilim Current Limit ∆VOUT Output Voltage ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit VIN=6.0V,IOUT=10mA 3.900 4.000 4.100 V VIN=6.0V 100 mA VIN=6.0V 1mA≤IOUT≤70mA mV IOUT=50mA 0.5 0.7 V VIN=6.0V 1.2 3.6 µA IOUT=10mA VOUT+1.0V≤VIN≤10V 0.1 %/V V 240 mA IOUT=10mA ±100 ppm/˚C Symbol Item VOUT Output Voltage IOUT Output Current ∆VOUT Load Regulation ∆IOUT VDIF Dropout Voltage ISS Quiescent Current ∆VOUT ∆VIN Line Regulation VIN Input Voltage Ilim Current Limit ∆VOUT Output Voltage ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit VIN=7.0V,IOUT=10mA 4.875 5.000 5.125 V VIN=7.0V 120 mA VIN=7.0V 1mA≤IOUT≤80mA mV IOUT=60mA 0.5 0.7 V VIN=7.0V 1.3 3.9 µA IOUT=10mA VOUT+1.0V≤VIN≤10V 0.1 %/V V 240 mA IOUT=10mA ±100 ppm/˚C
  • R×5RE60A Topt=25˚C R×5RE Symbol Item VOUT Output Voltage IOUT Output Current ∆VOUT Load Regulation ∆IOUT VDIF Dropout Voltage ISS Quiescent Current ∆VOUT ∆VIN Line Regulation VIN Input Voltage Ilim Current Limit ∆VOUT Output Voltage ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit VIN=8.0V,IOUT=10mA 5.850 6.000 6.150 V VIN=8.0V 120 mA VIN=8.0V 1mA≤IOUT≤80mA mV IOUT=60mA 0.5 0.7 V VIN=8.0V 1.4 4.2 µA IOUT=10mA VOUT+1.0V≤VIN≤10V 0.1 %/V V 240 mA IOUT=10mA ±100 ppm/˚C

ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE R×5RE VIN– VOUT =2.0V 1mA≤ IOUT ≤50mA VIN– VOUT =2.0V 1mA≤ IOUT ≤60mA VIN– VOUT =2.0V 1mA≤ IOUT ≤70mA 100 VIN– VOUT =2.0V 1mA≤ 120 IOUT ≤80mA R×5RE20A 1.950 2.000 2.050 R×5RE21A 2.048 2.100 2.152 R×5RE22A 2.145 2.200 2.255 R×5RE23A 2.243 2.300 2.357 R×5RE24A 2.340 2.400 2.460 R×5RE25A 2.438 2.500 2.562 R×5RE26A 2.535 2.600 2.665 R×5RE27A 2.633 2.700 2.767 R×5RE28A 2.730 2.800 2.870 R×5RE29A 2.828 2.900 2.972 R×5RE30A 2.925 3.000 3.075 R×5RE31A 3.023 3.100 3.177 R×5RE32A 3.120 3.200 3.280 R×5RE33A 3.218 3.300 3.382 R×5RE34A 3.315 3.400 3.485 R×5RE35A 3.413 3.500 3.587 R×5RE36A 3.510 3.600 3.690 R×5RE37A 3.608 3.700 3.792 R×5RE38A 3.705 3.800 3.895 R×5RE39A 3.803 3.900 3.997 R×5RE40A 3.900 4.000 4.100 R×5RE41A 3.998 4.100 4.202 R×5RE42A 4.095 4.200 4.305 R×5RE43A 4.193 4.300 4.407 R×5RE44A 4.290 4.400 4.510 R×5RE45A 4.388 4.500 4.612 R×5RE46A 4.485 4.600 4.715 R×5RE47A 4.583 4.700 4.817 R×5RE48A 4.680 4.800 4.920 R×5RE49A 4.778 4.900 5.022 R×5RE50A 4.875 5.000 5.125 R×5RE51A 4.973 5.100 5.227 R×5RE52A 5.070 5.200 5.330 R×5RE53A 5.168 5.300 5.432 R×5RE54A 5.265 5.400 5.535 R×5RE55A 5.363 5.500 5.637 R×5RE56A 5.460 5.600 5.740 R×5RE57A 5.558 5.700 5.842 R×5RE58A 5.655 5.800 5.945 R×5RE59A 5.753 5.900 6.047 R×5RE60A 5.850 6.000 6.150 Output Voltage OutputCurrent Load Regulation Part Number VOUT(V) IOUT(mA) ∆VOUT/∆IOUT(mV) Conditions MIN. TYP. MAX. Conditions MIN. TYP. Conditions TYP. MAX. VIN– VOUT =2.0V IOUT =10mA VIN– VOUT =2.0V IOUT =30mA IOUT =40mA 0.5 0.7 IOUT =50mA IOUT =60mA Dropout Voltage VDIF(V) Conditions TYP. MAX.

R×5RE Topt=25˚C 1.0 3.0 1.1 3.3 IOUT =10mA IOUT VIN– =10mA VOUT 1.2 3.6 0.1 240 ±100 =2.0V VOUT+ –40˚C≤ 1.0V≤ Topt VIN ≤85˚C ≤10V 1.3 3.9 1.4 4.2 Quiescent Current Line Regulation Input Voltage Current Limit Output Voltage Tempco. Iss(µA) ∆VOUT/∆VIN(%/V) VIN(V) Ilim(mA) ∆VOUT/∆T(ppm/˚C) Conditions TYP. MAX. Conditions TYP. MAX. TYP. Conditions TYP.

Output Voltage VOUT divided at the node between Registers R1 and R2 is compared with Reference Voltage by Error Amplifier, so that a constant voltage is output. TEST CIRCUITS FIG. 2 Test Circuit FIG. 3 Quiescent Current Test Circuit FIG. 4 Line Transient Response Test Circuit FIG. 1 Brock Diagram R×5RE GND GND VIN Error Amplifire VOUT Vref CI 1µF Co 1µF VIN GND R×5RE SERIES VOUT IOUT VOUT VIN ISS CI 1µF VIN GND R×5RE SERIES VOUT VIN Ro Co 0.1µF P.G GND R×5RE SERIES VOUT VOUT VIN

1) Output Voltage vs. Output Current R×5RE40A R×5RE50A R×5RE50A R×5RE Output Current IOUT(mA) Output Voltage VOUT(V) 3.7 3.8 3.9 4.1 4.0 VIN=6.0V 100 150 200 Topt=–40˚C 85˚C 25˚C 4.7 4.8 4.9 5.1 5.0 VIN=7.0V 100 150 200 250 Output Voltage VOUT(V) Output Current IOUT(mA) with heatsink without heatsink 4.7 4.8 4.9 5.1 5.0 VIN=7.0V 100 150 200 250 heatsink 30×30×1mm Output Voltage VOUT(V) Output Current IOUT(mA) 4.7 4.8 4.9 5.1 5.0 VIN=7.0V 100 150 200 250 300 350 25˚C Topt=–40˚C 85˚C R×5RE30A Output Voltage VOUT(V) Output Current IOUT(mA) 2.7 2.8 2.9 3.1 3.0 VIN=5.0V 100 150 200 250 Topt= –40˚C 25˚C 85˚C R×5RE20A 2) Output Voltage vs. Input Voltage IOUT=1µA Topt=25˚C 1.0 3.0 4.0 2.0 5.0 Input Voltage VIN(V) 1mA 10mA Output Voltage VOUT(V) 1.0 1.2 0.8 1.4 1.6 1.8 2.0 2.2 2.4 Topt=25˚C Input Voltage VIN(V) Output Voltage VOUT(V) 1.98 1.96 2.00 2.02 2.04 IOUT=1µA 1mA 10mA

R×5RE30A R×5RE40A R×5RE30A R×5RE40A R×5RE R×5RE50A R×5RE50A Topt=25˚C 2.0 3.0 3.5 2.5 4.0 4.5 Input Voltage VIN(V) Output Voltage VOUT(V) 2.0 2.2 1.8 2.4 2.6 2.8 3.0 3.2 3.4 IOUT=1mA 50mA 10mA 2.5 4.5 3.5 5.5 Input Voltage VIN(V) Topt=25˚C Output Voltage VOUT(V) 3.4 3.2 3.6 3.8 4.0 4.2 IOUT=1mA 50mA 10mA Topt=25˚C 3.0 5.0 6.0 4.0 7.0 8.0 Input Voltage VIN(V) Output Voltage VOUT(V) 2.96 2.95 2.97 2.98 2.99 3.00 IOUT=1µA 1mA 10mA Topt=25˚C Input Voltage VIN(V) Output Voltage VOUT(V) 3.98 3.96 4.00 4.02 4.04 4.06 1mA IOUT=1µA 10mA Topt=25˚C 4.5 4.0 5.5 6.0 5.0 6.5 Input Voltage VIN(V) Output Voltage VOUT(V) 4.4 4.2 4.6 4.8 5.0 5.1 IOUT=1mA 50mA 10mA Topt=25˚C Input Voltage VIN(V) Output Voltage VOUT(V) 4.97 4.98 4.95 4.96 4.99 5.00 5.01 5.02 5.03 5.04 5.05 10mA IOUT=1µA 1mA

R×5RE30A R×5RE40A R×5RE50A 3) Dropout Voltage vs. Output Curret R×5RE Output Current IOUT(mA) Dropout Voltage VDIF(V) 100 Topt=–40˚C 25˚C 85˚C 0.0 0.4 0.6 0.2 0.8 1.0 1.2 1.4 Output Current IOUT(mA) Dropout Voltage VDIF(V) 100 85˚C 25˚C Topt= –40˚C 0.0 0.4 0.5 0.7 0.6 0.2 0.3 0.1 0.8 Output Current IOUT(mA) Dropout Voltage VDIF(V) 100 0.0 0.2 0.4 0.6 0.8 1.0 25˚C Topt=–40˚C 85˚C R×5RE30A 4) Output Voltage vs.Temperature Temperature Topt(˚C) Output Voltage VOUT(V) -50 -30 -10 2.9 3.0 3.1 IOUT=10mA R×5RE40A Temperature Topt(˚C) Output Voltage VOUT(V) 3.9 4.0 4.1 -50 -30 -10 IOUT=10mA

R×5RE50A R×5RE20A 5) Quiescent Current vs. Input Voltage R×5RE R×5RE40A R×5RE50A Temperature Topt(˚C) Output Voltage VOUT(V) 4.9 4.8 5.0 5.2 5.1 -50 -30 -10 IOUT=10mA Input Voltage VIN(V) 0.6 0.7 0.8 0.9 1.0 1.1 Quiescent Current Iss(µA) Topt=25˚C R×5RE30A Input Voltage VIN(V) 1.0 1.1 1.2 1.3 1.4 Quiescent Current Iss(µA) Topt=25˚C Input Voltage VIN(V) 1.0 1.1 1.2 1.3 1.4 1.5 Quiescent Current Iss(µA) Topt=25˚C Input Voltage VIN(V) 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.5 1.4 Quiescent Current Iss(µA) Topt=25˚C

R×5RE20A R×5RE50A R×5RE40A 6) Quiescent Current vs. Temperature R×5RE 0.5 0.7 0.9 1.1 1.3 1.7 1.5 Quiescent Current Iss(µA) VIN=4.0V –40 –20 80 100 Temperature Topt(˚C) 0.5 0.7 0.9 1.1 1.3 1.7 1.5 Quiescent Current Iss(µA) VIN=6.0V –40 –20 100 Temperature Topt(˚C) R×5RE30A 0.8 1.0 1.2 1.6 1.4 Quiescent Current Iss(µA) VIN=5.0V –40 –20 100 Temperature Topt(˚C) VIN=7.0V 0.5 0.7 0.6 0.8 0.9 1.0 1.2 1.1 1.5 1.3 1.4 Quiescent Current Iss(µA) –20 –40 80 100 Temperature Topt(˚C) 7) Dropout Voltage vs. Set Output Voltage R×5RE SERIES 0.0 0.2 0.1 0.3 0.4 0.5 0.6 0.7 Set Output Voltage Vreg(V) Dropout Voltage VDIF(V) 1mA Topt=25˚C 10mA IOUT=50mA

8) Line Transient Response (1) R×5RE R×5RE30A R×5RE40A R×5RE20A R×5RE50A 9) Line Transient Response (2) R×5RE20A R×5RE30A 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1.0 2.0 1.5 2.5 3.0 4.5 4.5 3.5 5.0 Input Voltage/Output Voltage V(V) IOUT=1mA Time t(ms) Input Voltage Output Voltage 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2.0 4.0 3.0 5.0 7.0 6.0 8.0 Input Voltage/Output Voltage V(V) IOUT=1mA Time t(ms) Input Voltage Output Voltage 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1.0 3.0 2.0 4.0 6.0 5.0 7.0 Input Voltage/Output Voltage V(V) IOUT=1mA Time t(ms) Input Voltage Output Voltage Output Voltage 3.0 5.0 4.0 6.0 8.0 7.0 9.0 Input Voltage/Output Voltage V(V) IOUT=1mA Time t(ms) Input Voltage 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0.0 1.0 1.5 0.5 2.0 2.5 4.0 4.5 3.5 3.0 5.0 Input Voltage/Output Voltage V(V) IOUT=30mA Time t(ms) Input Voltage Output Voltage 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1.0 3.0 2.0 4.0 6.0 5.0 7.0 Input Voltage/Output Voltage V(V) IOUT=30mA Time t(ms) Input Voltage Output Voltage

R×5RE40A R×5RE50A R×5RE 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2.0 4.0 3.0 5.0 7.0 6.0 8.0 Input Voltage/Output Voltage V(V) IOUT=30mA Time t(ms) Input Voltage Output Voltage IOUT=30mA Output Voltage 3.0 5.0 4.0 6.0 8.0 7.0 9.0 Input Voltage/Output Voltage V(V) Time t(ms) Input Voltage

In R×5RE Series, a constant voltage can be obtained without using Capacitors C1 and C2. However, when the wire connected to VIN is long, use Capacitor C1. Output noise can be reduced by using Capacitor C2. Insert Capacitors C1 and C2 with the capacitance of 0.1µF to 2.0µF between Input/Output Pins and GND Pin with minimum wiring. The output voltage can be obtained by the follow- ing formula : VOUT=Vreg · (1+R2/R1) + ISS · R2 Since the quiescent current of R×5RE Series is so small that the resistances of R1 and R2 can be set as large as several hundreds kΩand therefore the sup- ply current of “Voltage Boost Circuit” itself can be reduced. Furthermore, since R×5RE Series are operated by a constant voltage, the supply current of “Voltage Boost Circuit” is not substantially affected by the input voltage. As shown in the circuit diagram, a dual power sup- ply circuit can be constructed by using two R×5RE Series. This circuit diagram shows a dual power supply circuit with an output of 3V and an output of 5V. When the minimum output current of IC2 is larger than ISS of IC1, Resistor R is unnecessary. Diode D is a protection diode for the case where VOUT2 becomes larger than VOUT1.

  • VOLTAGE BOOST CIRCUIT
  • DUAL POWER SUPPLY CIRCUIT R×5RE VIN GND GND GND R×5RE SERIES VOUT VOUT VIN VIN GND GND R×5RE SERIES VOUT VOUT VIN ISS VIN GND GND GND R×5RE20A R×5RE30A VOUT VOUT1 VOUT2 VIN GND VOUT VIN R ISS IC1 IC2 D *1) Vreg : Set Output Voltage of R×5RE Series. APPLICATION CIRCUITS
  • CURRENT BOOST CIRCUIT Output current of 120mA or more can be obtained by the current boost circuit constructed as shown in this circuit diagram.
  • CURRENT BOOST CIRCUIT WITH OVERCURRENT LIMIT CIRCUIT
  • CURRENT SOURCE A current source with the structure as shown in this circuit diagram can be used. Output Current IOUT is obtained as follows : IOUT=Vreg /R + ISS Take care that Output Current IOUT does not exceed its allowable current. R×5RE GND GND GND R×5RE SERIES VOUT VOUT VIN VIN Tr.1 GND GND GND R×5RE SERIES VOUT VOUT VIN VIN Tr.1 Tr.2 IOUT Vbe2 GND R×5RE SERIES VIN VIN R IOUT ISS VOUT A circuit for protecting Tr.1 from the destruction caused by output short-circuit or overcurrent is shown in this circuit diagram. When the voltage reduction caused by the current ( aa IOUT) which flows through R2 reaches Vbe2 of Tr.2 by additionally providing the current boost circuit with Tr.2 and R2, Tr.2 is turned ON and the base current of Tr.1 is increased, so that the output current is limited. Current limit of Overcurrent Limit Circuit is obtained as follows : IOUT Vbe2/R2 *1) Vreg : Set Output Voltage of R×5RE Series.