RE5RE51AC-T2

VOL TAGE REGULATOR FOR MIDDLE OUTPUT CURRENT R×5RE SERIES APPLICATION MANUAL NO.EA-016-0006 VOLTAGE REGULATOR FOR MIDDLE OUTPUT CURRENT 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 constant 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. FEATURES • Large Output Current ......................................TYP. 120mA (R × 5RE50A) • Low Temperature-Drift Coefficient of Output Voltage ...........................TYP. ±100ppm/˚C • Broad Operating Voltage Range ......................MAX. 10.0V • Excellent Line Regulation ................................TYP. 0.1%/V • High Accuracy Output Voltage ........................±2.5% • Output Voltage ...................................................Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible (refer to Selection Guide) ..................................TO-92, SOT-89 (Mini-power Mold) • Two Types of Packages • Ultra-low Quiescent Current ...........................TYP. 1.1µA (R × 5RE30A,VIN=5.0V) • Ultra-low Dropout Voltage ...............................TYP. 0.5V (R × 5RE50A,IOUT=60mA) 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 VIN 2 3 VOUT + – Vref 1 GND 1 R × 5RE 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. R × 5RE ×××× –×× ← Part Number } } ↑ a ↑ ↑↑ ↑ b cd e Code Contents a Designation of Package Type: E: TO-92 H: SOT-89 (Mini-power Mold) Setting Output Voltage (VOUT): Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible. A Designation of Packing Type: A: Taping C: Antistatic bag for TO-92 and samples Designation of Taping Type: Ex. TO-92 : RF, RR, TZ SOT-89: T1, T2 (refer to Taping Specifications) “TZ” and “T1” are prescribed as a standard. b c d e 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. 2 R × 5RE PIN CONFIGURATION • TO-92 • SOT-89 (mark side) (mark side) 1 2 3 1 2 3 PIN DESCRIPTION • TO-92 Pin No. Symbol • SOT-89 Pin No. Symbol 1 2 3 GND VIN VOUT 1 2 3 GND VIN VOUT 3 R × 5RE ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN VOUT IOUT PD Topt Tstg Tsolder Input Voltage Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Lead Temperature (Soldering) +12 –0.3 to VIN+0.3 300 300 –40 to +85 –55 to +25 260˚C, 10s V V mA mW ˚C ˚C ABSOLUTE MAXIMUM RATINGS 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. 4 R × 5RE ELECTRICAL CHARACTERISTICS Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit VOUT IOUT ∆VOUT ∆IOUT VDIF ISS ∆VOUT ∆VIN VIN Ilim ∆VOUT ∆Topt Output Voltage Output Current Load Regulation Dropout Voltage Quiescent Current Line Regulation Input Voltage Current Limit Output Voltage Temperature Coefficient VIN=4.0V,IOUT=10mA VIN=4.0V VIN=4.0V 1mA≤IOUT≤50mA IOUT=30mA VIN=4.0V IOUT=10mA VOUT+1.0V≤VIN≤10V 1.950 40 2.000 60 40 0.5 1.0 0.1 2.050 V mA 80 0.7 3.0 mV V µA %/V 10 240 IOUT=10mA –40˚C≤Topt≤85˚C ±100 V mA ppm/˚C • R × 5RE30A Symbol Item Conditions MIN. TYP. MAX. Topt=25˚C Unit VOUT IOUT ∆VOUT ∆IOUT VDIF ISS ∆VOUT ∆VIN VIN Ilim ∆VOUT ∆Topt Output Voltage Output Current Load Regulation Dropout Voltage Quiescent Current Line Regulation Input Voltage Current Limit Output Voltage Temperature Coefficient VIN=5.0V,IOUT=10mA VIN=5.0V VIN=5.0V 1mA≤IOUT≤60mA IOUT=40mA VIN=5.0V IOUT=10mA VOUT+1.0V≤VIN≤10V 2.925 50 3.000 80 40 0.5 1.1 0.1 3.075 V mA 80 0.7 3.3 mV V µA %/V 10 240 IOUT=10mA –40˚C≤Topt≤85˚C ±100 V mA ppm/˚C 5 R × 5RE • R × 5RE40A Symbol Item Conditions MIN. TYP. MAX. Topt=25˚C Unit VOUT IOUT ∆VOUT ∆IOUT VDIF ISS ∆VOUT ∆VIN VIN Ilim ∆VOUT ∆Topt Output Voltage Output Current Load Regulation Dropout Voltage Quiescent Current Line Regulation Input Voltage Current Limit Output Voltage Temperature Coefficient VIN=6.0V,IOUT=10mA VIN=6.0V VIN=6.0V 1mA≤IOUT≤70mA IOUT=50mA VIN=6.0V IOUT=10mA VOUT+1.0V≤VIN≤10V 3.900 65 4.000 100 40 0.5 1.2 0.1 4.100 V mA 80 0.7 3.6 mV V µA %/V 10 240 IOUT=10mA –40˚C≤Topt≤85˚C ±100 V mA ppm/˚C • R × 5RE50A Symbol Item Conditions MIN. TYP. MAX. Topt=25˚C Unit VOUT IOUT ∆VOUT ∆IOUT VDIF ISS ∆VOUT ∆VIN VIN Ilim ∆VOUT ∆Topt Output Voltage Output Current Load Regulation Dropout Voltage Quiescent Current Line Regulation Input Voltage Current Limit Output Voltage Temperature Coefficient VIN=7.0V,IOUT=10mA VIN=7.0V VIN=7.0V 1mA≤IOUT≤80mA IOUT=60mA VIN=7.0V IOUT=10mA VOUT+1.0V≤VIN≤10V 4.875 80 5.000 120 40 0.5 1.3 0.1 5.125 V mA 80 0.7 3.9 mV V µA %/V 10 240 IOUT=10mA –40˚C≤Topt≤85˚C ±100 V mA ppm/˚C 6 R × 5RE • R × 5RE60A Symbol Item Conditions MIN. TYP. MAX. Topt=25˚C Unit VOUT IOUT ∆VOUT ∆IOUT VDIF ISS ∆VOUT ∆VIN VIN Ilim ∆VOUT ∆Topt Output Voltage Output Current Load Regulation Dropout Voltage Quiescent Current Line Regulation Input Voltage Current Limit Output Voltage Temperature Coefficient VIN=8.0V,IOUT=10mA VIN=8.0V VIN=8.0V 1mA≤IOUT≤80mA IOUT=60mA VIN=8.0V IOUT=10mA VOUT+1.0V≤VIN≤10V 5.850 80 6.000 120 40 0.5 1.4 0.1 6.150 V mA 80 0.7 4.2 mV V µA %/V 10 240 IOUT=10mA –40˚C≤Topt≤85˚C ±100 V mA ppm/˚C 7 R × 5RE ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE Output Voltage Part Number Conditions OutputCurrent IOUT(mA) MAX. Conditions MIN. TYP. Load Regulation Dropout Voltage VDIF(V) Conditions TYP. MAX. VOUT(V) MIN. TYP. ∆VOUT/∆IOUT(mV) Conditions TYP. MAX. R × 5RE20A R × 5RE21A R × 5RE22A R × 5RE23A R × 5RE24A R × 5RE25A R × 5RE26A R × 5RE27A R × 5RE28A R × 5RE29A R × 5RE30A R × 5RE31A R × 5RE32A R × 5RE33A R × 5RE34A R × 5RE35A R × 5RE36A R × 5RE37A R × 5RE38A R × 5RE39A R × 5RE40A R × 5RE41A R × 5RE42A R × 5RE43A R × 5RE44A R × 5RE45A R × 5RE46A R × 5RE47A R × 5RE48A R × 5RE49A R × 5RE50A R × 5RE51A R × 5RE52A R × 5RE53A R × 5RE54A R × 5RE55A R × 5RE56A R × 5RE57A R × 5RE58A R × 5RE59A R × 5RE60A 1.950 2.048 2.145 2.243 2.340 2.438 2.535 2.633 2.730 2.828 2.925 3.023 3.120 3.218 3.315 3.413 VIN– 3.510 VOUT 3.608 =2.0V 3.705 3.803 3.900 3.998 IOUT 4.095 =10mA 4.193 4.290 4.388 4.485 4.583 4.680 4.778 4.875 4.973 5.070 5.168 5.265 5.363 5.460 5.558 5.655 5.753 5.850 2.000 2.100 2.200 2.300 2.400 2.500 2.600 2.700 2.800 2.900 3.000 3.100 3.200 3.300 3.400 3.500 3.600 3.700 3.800 3.900 4.000 4.100 4.200 4.300 4.400 4.500 4.600 4.700 4.800 4.900 5.000 5.100 5.200 5.300 5.400 5.500 5.600 5.700 5.800 5.900 6.000 2.050 2.152 2.255 2.357 2.460 2.562 2.665 2.767 2.870 2.972 3.075 3.177 3.280 3.382 3.485 3.587 3.690 3.792 3.895 3.997 4.100 4.202 4.305 4.407 4.510 4.612 4.715 4.817 4.920 5.022 5.125 5.227 5.330 5.432 5.535 5.637 5.740 5.842 5.945 6.047 6.150 VIN– VOUT =2.0V 1mA≤ IOUT ≤50mA VIN– VOUT =2.0V 40 60 IOUT =30mA 1mA≤ IOUT ≤60mA 50 80 VIN– VOUT =2.0V 40 80 0.5 0.7 IOUT =40mA VIN– VOUT =2.0V 1mA≤ IOUT ≤70mA 65 100 IOUT =50mA VIN– VOUT =2.0V 1mA≤ 80 120 IOUT ≤80mA IOUT =60mA 8 R × 5RE Topt=25˚C Quiescent Current Iss(µA) Conditions TYP. MAX. Line Regulation Input Voltage Current Limit Output Voltage Tempco. ∆VOUT/∆VI N(%/V) VI N(V) Ilim(mA) ∆VOUT/∆T(ppm/˚C) Conditions TYP. MAX. TYP. Conditions TYP. 1.0 3.0 1.1 3.3 IOUT =10mA VIN– VOUT =2.0V 1.2 3.6 VOUT+ 1.0V≤ VIN ≤10V 0.1 10 240 –40˚C≤ Topt ≤85˚C IOUT =10mA ±100 1.3 3.9 1.4 4.2 9 R × 5RE OPERATION Output Voltage VOUT divided at the node between VIN Error Amplifire – + Vref R2 GND FIG. 1 Brock Diagram VOUT Registers R1 and R2 is compared with Reference Voltage by Error Amplifier, so that a constant voltage is output. R1 GND TEST CIRCUITS VIN R×5RE SERIES VIN VOUT IOUT VOUT VIN ISS VIN R×5RE SERIES VOUT CI 1µF + GND + Co 1µF CI + 1µF GND FIG. 2 Test Circuit FIG. 3 Quiescent Current Test Circuit VIN R×5RE SERIES VOUT VOUT P.G GND Co 0.1µF + Ro FIG. 4 Line Transient Response Test Circuit 10 R × 5RE TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current R × 5RE30A 3.1 Topt= –40˚C Output Voltage VOUT(V) 3.0 25˚C 2.9 85˚C 2.8 Output Voltage VOUT(V) Topt=–40˚C 4.0 25˚C 3.9 VIN=5.0V 4.1 R × 5RE40A VIN=6.0V 3.8 85˚C 2.7 0 50 100 150 200 Output Current IOUT(mA) 250 3.7 0 150 50 100 Output Current IOUT(mA) 200 R × 5RE50A 5.1 Output Voltage VOUT(V) VIN=7.0V R × 5RE50A 5.1 Output Voltage VOUT(V) 5.0 4.9 4.8 4.7 heatsink 30×30×1mm VIN=7.0V Topt=–40˚C 5.0 25˚C 4.9 85˚C 4.8 with heatsink without heatsink 4.7 0 50 100 150 200 250 300 350 Output Current IOUT(mA) 0 50 100 150 200 Output Current IOUT(mA) 250 2) Output Voltage vs. Input Voltage 2.4 2.2 Output Voltage VOUT(V) 2.0 1.8 1.6 10mA 1.4 1.2 1.0 0.8 1.0 1mA IOUT=1µA Topt=25˚C R × 5RE20A 2.04 Output Voltage VOUT(V) Topt=25˚C 2.02 IOUT=1µA 2.00 1mA 1.98 10mA 1.96 2.0 3.0 4.0 Input Voltage VIN(V) 5.0 2 3 4 5 6 Input Voltage VIN(V) 7 11 R × 5RE R × 5RE30A 3.4 3.2 Output Voltage VOUT(V) Topt=25˚C R × 5RE30A 3.00 Output Voltage VOUT(V) 2.99 IOUT=1µA 2.98 2.97 2.96 2.95 3.0 1mA 10mA Topt=25˚C 3.0 IOUT=1mA 2.8 2.6 2.4 2.2 2.0 1.8 2.0 10mA 50mA 2.5 3.0 3.5 4.0 Input Voltage VIN(V) 4.5 4.0 5.0 6.0 7.0 Input Voltage VIN(V) 8.0 R × 5RE40A 4.2 Output Voltage VOUT(V) 4.0 IOUT=1mA 3.8 3.6 50mA 3.4 10mA 3.2 2.5 Topt=25˚C 4.06 Output Voltage VOUT(V) 4.04 4.02 4.00 R × 5RE40A Topt=25˚C IOUT=1µA 1mA 3.98 3.96 10mA 3.5 4.5 5.5 Input Voltage VIN(V) 4 5 6 7 8 Input Voltage VIN(V) 9 R × 5RE50A 5.1 Output Voltage VOUT(V) 5.0 4.8 4.6 4.4 4.2 4.0 Topt=25˚C R × 5RE50A 5.05 5.04 Output Voltage VOUT(V) 5.03 5.02 5.01 5.00 4.99 4.98 4.97 4.96 4.95 Topt=25˚C IOUT=1mA 10mA 50mA IOUT=1µA 1mA 10mA 4.5 5.0 5.5 6.0 Input Voltage VIN(V) 6.5 5 6 7 8 9 Input Voltage VIN(V) 10 12 R × 5RE 3) Dropout Voltage vs. Output Curret R × 5RE30A 1.4 Dropout Voltage VDIF(V) Dropout Voltage VDIF(V) 1.2 85˚C 1.0 0.8 0.6 0.4 0.2 0.0 0 20 40 60 80 Output Current IOUT(mA) 100 Topt=–40˚C 0.0 0 20 40 60 80 Output Current IOUT(mA) 100 25˚C 1.0 0.8 85˚C 0.6 25˚C 0.4 0.2 Topt=–40˚C R × 5RE40A R × 5RE50A 0.8 0.7 Dropout Voltage VDIF(V) 0.6 0.5 25˚C 0.4 0.3 0.2 0.1 0.0 0 20 40 60 80 Output Current IOUT(mA) 100 Topt= –40˚C 85˚C 4) Output Voltage vs.Temperature R × 5RE30A 3.1 Output Voltage VOUT(V) IOUT=10mA R × 5RE40A 4.1 Output Voltage VOUT(V) IOUT=10mA 3.0 4.0 2.9 -50 -30 -10 10 30 50 70 Temperature Topt(˚C) 90 3.9 -50 -30 -10 10 30 50 70 Temperature Topt(˚C) 90 13 R × 5RE R × 5RE50A 5.2 Output Voltage VOUT(V) IOUT=10mA 5.1 5.0 4.9 4.8 -50 -30 -10 10 30 50 70 Temperature Topt(˚C) 90 5) Quiescent Current vs. Input Voltage R × 5RE20A 1.1 Quiescent Current Iss(µA) 1.0 Topt=25˚C Quiescent Current Iss(µA) R × 5RE30A 1.4 Topt=25˚C 1.3 0.9 0.8 0.7 0.6 3 4 5 6 7 8 Input Voltage VIN(V) 9 10 1.2 1.1 1.0 2 3 4 56 78 Input Voltage VIN(V) 9 10 R × 5RE40A 1.5 Quiescent Current Iss(µA) 1.4 1.3 1.2 1.1 1.0 Topt=25˚C Quiescent Current Iss(µA) R × 5RE50A 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 5 6 Topt=25˚C 4 5 6 7 8 9 10 Input Voltage VIN(V) 11 7 8 9 10 11 Input Voltage VIN(V) 12 14 R × 5RE 6) Quiescent Current vs. Temperature R × 5RE20A 1.7 Quiescent Current Iss(µA) 1.5 1.3 1.1 0.9 0.7 0.5 –40 –20 VIN=4.0V 1.6 Quiescent Current Iss(µA) R × 5RE30A VIN=5.0V 1.4 1.2 1.0 0 20 40 60 80 100 Temperature Topt(˚C) 0.8 –40 –20 0 20 40 60 80 100 Temperature Topt(˚C) R × 5RE40A 1.7 Quiescent Current Iss(µA) 1.5 1.3 1.1 0.9 0.7 0.5 –40 –20 VIN=6.0V R × 5RE50A 1.5 1.4 Quiescent Current Iss(µA) 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 –40 –20 VIN=7.0V 0 20 40 60 80 100 Temperature Topt(˚C) 0 20 40 60 80 100 Temperature Topt(˚C) 7) Dropout Voltage vs. Set Output Voltage 0.7 Dropout Voltage VDIF(V) 0.6 0.5 IOUT=50mA 0.4 0.3 0.2 10mA 0.1 0.0 0 1mA 1 2 3 4 5 Set Output Voltage Vreg(V) 6 R × 5RE SERIES Topt=25˚C 15 R × 5RE 8) Line Transient Response (1) R × 5RE20A Input Voltage/Output Voltage V(V) 5.0 4.5 4.5 3.5 3.0 2.5 2.0 1.5 1.0 1.5 2.0 2.5 3.0 3.5 Time t(ms) Output Voltage Input Voltage IOUT=1mA Input Voltage/Output Voltage V(V) R × 5RE30A 7.0 6.0 5.0 4.0 Output Voltage 3.0 2.0 1.0 1.5 Input Voltage IOUT=1mA 4.0 4.5 2.0 2.5 3.0 3.5 Time t(ms) 4.0 4.5 R × 5RE40A 8.0 Input Voltage/Output Voltage V(V) 7.0 6.0 5.0 Input Voltage IOUT=1mA Input Voltage/Output Voltage V(V) R × 5RE50A 9.0 8.0 7.0 6.0 Output Voltage 5.0 4.0 3.0 0 Input Voltage IOUT=1mA Output Voltage 4.0 3.0 2.0 1.5 2.0 2.5 3.0 3.5 Time t(ms) 4.0 4.5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Time t(ms) 9) Line Transient Response (2) R × 5RE20A Input Voltage/Output Voltage V(V) 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 1.5 2.0 2.5 3.0 3.5 Time t(ms) 4.0 4.5 Output Voltage Input Voltage IOUT=30mA Input Voltage/Output Voltage V(V) R × 5RE30A 7.0 6.0 5.0 4.0 3.0 2.0 1.0 1.5 Input Voltage IOUT=30mA Output Voltage 2.0 2.5 3.0 3.5 Time t(ms) 4.0 4.5 16 R × 5RE R × 5RE40A Input Voltage/Output Voltage V(V) 8.0 7.0 6.0 5.0 Input Voltage IOUT=30mA Input Voltage/Output Voltage V(V) 9.0 8.0 7.0 6.0 R × 5RE50A IOUT=30mA Input Voltage Output Voltage 4.0 3.0 2.0 1.5 2.0 2.5 3.0 3.5 Time t(ms) 4.0 4.5 Output Voltage 5.0 4.0 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Time t(ms) 17 R × 5RE TYPICAL APPLICATION In R × 5RE Series, a constant voltage can be obtained VIN C1 VIN + R×5RE SERIES GND VOUT + C2 without using Capacitors C1 and C2. However, when the VOUT 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. GND GND APPLICATION CIRCUITS • VOLTAGE BOOST CIRCUIT The output voltage can be obtained by the following formula : VIN VIN R×5RE SERIES GND C1 + ISS GND R2 VOUT VOUT + *1 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 kΩ and therefore the supply 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. C2 R1 *1) Vreg : Set Output Voltage of R×5RE Series. • DUAL POWER SUPPLY CIRCUIT As shown in the circuit diagram, a dual power supIC1 VIN VIN R×5RE20A GND IC2 VIN C2 GND + GND GND R×5RE30A VOUT C3 + R VOUT2 3V VOUT C1 + D ISS VOUT1 5V 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. 18 R × 5RE • CURRENT BOOST CIRCUIT Output current of 120mA or more can be obtained Tr.1 by the current boost circuit constructed as shown in this circuit diagram. VIN R×5RE SERIES GND VOUT VOUT + C2 GND VIN C1 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 Vbe2 Tr.2 VIN VIN + R1 R×5RE SERIES GND GND GND VOUT + VOUT C2 IOUT Tr.1 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 • CURRENT SOURCE A current source with the structure as shown in VIN R×5RE SERIES GND IOUT VOUT R ISS this circuit diagram can be used. Output Current IOUT is obtained as follows : *1 IOUT=Vreg /R + ISS Take care that Output Current IOUT does not exceed its allowable current. VIN C1 + *1) Vreg : Set Output Voltage of R×5RE Series. 19