High Input Voltage Tolerant Boost Voltage Regulator

www.DataSheet4U.com R1152N SERIES High Input Voltage Tolerant Boost Voltage Regulator NO.EA-108-0601 OUTLINE The R1152N Series are CMOS-based positive voltage regulator controller ICs with high output voltage accuracy, low supply current. The high output current regulator can be composed with this IC, an external power transistor, and capacitors. Each of these voltage regulator controllers consists of a voltage reference unit, an error amplifier, comparators, resistors for output voltage setting, a peak current limit protection circuit, a short current limit circuit, and a chip enable circuit. The output voltage of these ICs is internally fixed. In addition to low supply current by the merit of CMOS process, the chip enable function prolongs the battery life. Maximum operating input voltage is up to 18V, thus these ICs are very suitable for the power supply for hand-held equipment and other power management applications using various AC adapters. Since the package for these ICs is SOT-23-5 package, high density mounting of the ICs on boards is possible. FEATURES • • • • • • Ultra-Low Supply Current..........................Typ.10µA Standby Mode ...........................................Typ.0.1µA Low Dropout Voltage................................ Typ.0.1V(IOUT=300mA,VOUT=5.0V,Depends on External Transister) High Output Voltage Accuracy ................. ±2.0% Small Packages ....................................... SOT-23-5 (Mini-mold) Output Voltage ......................................... Stepwise setting with a step of 0.1V in the range of 2.5V to 12.0V (Fixed type) or adjustable (with external divider resistors can be set more than12.1V, the reference voltage is 2.5V) Operating Input Voltage ........................... Max.18V Built-in Chip Enable Circuit (“H” active) Built-in Current Limit Circuit Output Short Current Limit Circuit • • • • APPLICATIONS • • • • Power source for home appliances such as refrigerators, rice cookers, etc. Power source for car audio equipment, car navigation system, and ETC system. Power source for notebook PCs, digital TVs, cordless phones, and LAN system. Power source for copiers, printers, facsimiles, and scanners. 1 www.DataSheet4U.com R1152N BLOCK DIAGRAMS VIN 3 4 EXT ＋ Vref － 5 VOUT CE 1 Current Limit 2 GND SELECTION GUIDE The output voltage, mask option code, and the taping type for the ICs can be selected at the user's request. The selection can be made with designating the part number as shown below; R1152NxxxB-xx ↑ ↑ ↑ a b c Code a b c ←Part Number Contents Designation of Voltage Setting: 0.1V Stepwise Setting in the range from 2.5V to 12.0V (Fixed) Chip Enable Polarity: B: with CE (active at “H” type). Designation of Taping Type : Ex. TR (Refer to Taping Specifications.) 2 www.DataSheet4U.com R1152N PIN CONFIGURATION • 5 SOT-23-5 4 (mark side) 1 2 3 PIN DESCRIPTIONS Pin No 1 2 3 4 5 Symbol CE GND VIN VDD VOUT Chip Enable Pin Ground Pin Input pin External Transistor Drive Pin Voltage Regulator Output Pin Pin Description ABSOLUTE MAXIMUM RATINGS Symbol VIN VSURGE VCE VOUT VEXT IEXT PD Topt Tstg Input Voltage SURGE Input Voltage*2 Input Voltage (CE Pin) Output Voltage (VOUT Pin) Output Voltage (EXT Pin) EXT Output Current Power Dissipation (SOT-23-5* ) Operating Temperature Range Storage Temperature Range 1 Item Rating 20 26 −0.3~ VIN+0.3 −0.3~ VIN+0.3 −0.3~ VIN+0.3 25 420 −40 ~ +105 −55 ~ +125 Unit V V V V V mA mW °C °C *1) For Power Dissipation, please refer to PACKAGE INFORMATION to be described. *2) duration = 200ms 3 www.DataSheet4U.com R1152N ELECTRICAL CHARACTERISTICS • R1152NxxxB Topt=25°C Symbol VOUT IOUT Item Output Voltage Output Current Conditions VIN=Set VOUT+1V IOUT=100mA Refer to the specification Table Note1 Min. ×0.980 1 Typ. Max. ×1.020 Unit V A ∆VOUT/∆IOUT Load Regulation VDIF ISS Istandby IEXTleak ∆VOUT/∆VIN VIN Ilim IRPT ∆VOUT/ ∆Topt VCEH VCEL Dropout Voltage Supply Current Supply Current (Standby) EXT Leakage Current Line Regulation Input Voltage Current Limit Short Current Limit Output Voltage Temperature Coefficient CE Input Voltage "H" CE Input Voltage "L" VIN=Set VOUT+1V 1mA < IOUT < 100mA = = IOUT=300mA VIN=Set VOUT+1V, IOUT=0mA VIN=18V,CE=0V Set VOUT+0.5V IOUT=100mA < = Refer to the specification table by output voltage 10 0.1 24 1.0 0.1 µA µA µA %/V V mA µA ppm /°C VIN 0.5 µA V VIN < = 18.0V 0.01 0.10 18 Refer to the specification Table Base Current IB of PNP Tr. Base Current IB of PNP Tr. VOUT=0V IOUT=100mA −40°C < Topt = < = 10 600 ±50 2.0 0.0 25 105°C Note1: This item depends on the capability of external PNP transistor. Use low saturation type transistor with hFE value range of 100 to 300. 4 www.DataSheet4U.com R1152N • Load Regulation Table (Topt=25°C) Output Voltage VOUT (V) 2.5 5.0 < = < = Load Regulation (mV) Typ. 4 4 Max. 10 18 VOUT VOUT < = < = 5.0 12.0 • Dropout Voltage Table (Topt=25°C) Output Voltage VOUT (V) 2.5 5.0 < = Dropout Voltage (mV) Typ. 150 100 Max. 290 180 VOUT < 5.0 < = < = VOUT 12.0 ∗This specification depends on an external transistor. ("2SB1642" is the reference item.) • Output Current Limit Condition Table (Topt=25°C) Output Voltage VOUT (V) 2.5V 4.0 < = Condition VIN=5.0V VIN=VOUT+1.0V VOUT < = 4.0 < = VOUT < = 12.0 • Output Current Condition Table (Topt=25°C) Output Voltage VOUT (V) 2.5V 4.0 < = Condition VIN=CE=5.0V VIN=CE=VOUT+1.0V VOUT < = 3.9 < = VOUT < = 12.0 5 www.DataSheet4U.com R1152N OPERATION In these ICs, fluctuation of Output Voltage, VOUT is detected by the feed-back registers, and the result is compared with a reference voltage with the error amplifier and control the base current of an external PNP transistor so that a constant voltage is output. The base current is monitored with the base current limit circuit. If the base current may be too large, the protection circuit works. TECHNICAL NOTES When using these ICs, consider the following points: Make VDD and GND lines sufficient. When their impedance is high, noise pickup or unstable operation may result. When you choose an external transistor, select with considering output current, input voltage, and power dissipation. Generally, low VCE(SAT) and hFE range from 100 to 300 are the appropriate characteristics. In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, be sure to use a 10µF or more output capacitor, as close as possible to the ICs. If you choose an electrolytic capacitor, ESR shift by temperature should be small. If you choose a ceramic capacitor, add an appropriate series resister. If the set output voltage is less than 4.0V, and IOUT>1A must be obtained, at least VIN≧5.0V is the appropriate condition. (Supposed as hFE=100) Voltage level for CE should not be floating, or middle range voltage. If the CE voltage is not appropriate, output voltage may be unstable or conduction current may flow. All external components should be located as close as possible to the IC, and wiring should be as short as possible. If hFE value of the PNP transistor is too high, output voltage may rise at low load current (less than 1mA). 6 www.DataSheet4U.com R1152N TEST CIRCUITS ISS VIN CE VIN CIN EXT VOUT PNP Tr OUT VIN CE VIN EXT VOUT GND COUT GND VOUT Fig.1 Standard test Circuit CIN=0.1µF, COUT=10µF Fig.2 Supply Current Test Circuit VIN VIN EXT VOUT GND PNP Tr IOUT OUT COUT VIN CIN CE EXT VOUT PNP Tr OUT P.G. CE GND COUT I1 I2 Fig.3 Ripple Rejection, Line Transient Response Test Circuit COUT=10µF Fig.4 Load Transient Response Test Circuit CIN=0.1µF, COUT=10µF TYPICAL APPLICATIONS IN VIN CIN CE VOUT GND EXT PNP Tr OUT COUT CIN CE VOUT GND COUT IN VIN EXT PNP Tr OUT Fixed Type Output (External Components) CIN=0.1µF, COUT=10µF Adjustable Output 7 www.DataSheet4U.com R1152N TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current (Topt=25°C) a. External Tr.: 2SB1642 R1152N025B 3.0 4.0 2.5 VIN=5.0V 2.0 1.5 1.0 0.5 0.0 0 500 1000 1500 Output Current IOUT(mA) 2000 VIN=3.5V VIN=3.0V R1152N033B Output Voltage VOUT(V) Output Voltage VOUT(V) 3.0 2.0 1.0 0.0 0 VIN=5.0V VIN=4.3V VIN=3.8V 500 1000 1500 Output Current IOUT(mA) 2000 R1152N050B 6.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0 500 1000 1500 Output Current IOUT(mA) 2000 0 R1152N120B Output Voltage VOUT(V) Output Voltage VOUT(V) 5.0 4.0 3.0 2.0 1.0 0.0 VIN=6.0V VIN=5.5V VIN=7.0V VIN=12.5V VIN=13.0V VIN=14.0V 500 1000 1500 Output Current IOUT(mA) 2000 b. External Tr.:2SA1645 R1152N025B 3.0 4.0 R1152N033B Output Voltage VOUT(V) Output Voltage VOUT(V) 2.5 2.0 1.5 1.0 0.5 0.0 0 1000 2000 3000 4000 Output Current IOUT(mA) 5000 VIN=5.0V VIN=3.5V VIN=3.0V 3.0 VIN=5.0V 2.0 1.0 0.0 0 1000 2000 3000 4000 Output Current IOUT(mA) 5000 VIN=4.3V VIN=3.8V 8 www.DataSheet4U.com R1152N R1152N050B 6.0 Output Voltage VOUT(V) 5.0 4.0 3.0 2.0 VIN=7.0V 1.0 0.0 0 1000 2000 3000 4000 5000 6000 Output Current IOUT(mA) VIN=6.0V VIN=5.5V c. Output Voltage vs. Base Current (Topt=25°C) R1152N025B 3.0 VIN=5.0V 4.0 R1152N033B VIN=5.0V Output Voltage VOUT(V) Output Voltage VOUT(V) 2.5 2.0 1.5 1.0 0.5 0.0 0 5 10 15 20 25 Base Current IEXT(mA) 30 3.0 2.0 1.0 0.0 0 10 20 Base Current IEXT(mA) 30 R1152N050B 6.0 VIN=6.0V 14.0 R1152N012B VIN=13.0V Output Voltage VOUT(V) 0 5 10 15 20 25 Base Current IEXT(mA) 30 Output Voltage VOUT(V) 5.0 4.0 3.0 2.0 1.0 0.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0 5 10 15 20 25 Base Current IEXT(mA) 30 9 www.DataSheet4U.com R1152N 2) Output Voltage vs. Input Voltage (Topt=25°C) External Transistor: 2SB1642 R1152N025B 2.7 3.6 R1152N033B Output Voltage VOUT(V) 2.5 2.3 2.1 1.9 1.7 1 2 3 4 5 6 Input Voltage VIN(V) 7 8 IOUT=1A IOUT=500mA IOUT=100mA IOUT=0mA Output Voltage VOUT(V) 3.3 3.0 2.7 2.4 2.1 2 3 4 5 6 Input Voltage VIN(V) 7 8 IOUT=1A IOUT=500mA IOUT=100mA