UNISONIC TECHNOLOGIES CO., LTD L1131A Preliminary CMOS IC LOW NOISE 150mA LDO REGULATOR DESCRIPTION The UTC L1131A is a COMS positive linear regulator. One of it’s feature is the very low quiescent current typical as low as 10μA and its dropout voltage is extremely low with 150mA output current, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a short current limit circuit, a chip enable circuit, and so on. These ICs perform with low dropout voltage and the chip-enable function. The supply current at no load of this IC is only 10μA, and the line transient response and the load transient response of the UTC L1131A Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are SOT-23-5 therefore high density mounting of the ICs on boards is possible. FEATURES * Low supply current Typ. 10μA * Standby mode Typ. 0.1μA * Output Voltage Range 1.2V~5.0V * Excellent line regulation Typ. 0.02%/V * Built-in fold back protection circuit * Ceramic capacitors are recommended to be used with this IC CIN=COUT=1μF ORDERING INFORMATION Note: Ordering Number L1131AG-xx-AE5-R xx: Output Voltage, refer to Marking Information. L1131AG-xx-AE5-R Package SOT-23-5 (1)Packing Type (1) R: Tape Reel (2)Package Type (2) AE5: SOT-23-5 (3)Output Voltage Code (3) xx: refer to Marking Information (4)Green Package (4) G: Halogen Free and Lead Free www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd Packing Tape Reel 1 of 5 QW-R502-A41.d L1131A Preliminary MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-23-5 15: 1.5V 25: 2.5V 28: 2.8V 33: 3.3V PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 CMOS IC PIN NAME VDD GND CE NC VOUT MARKING DESCRIPTION Input pin Ground pin Chip enable pin No connection Output pin BLOCK DIAGRAM VDD VOUT + VREF Current Limit CE UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND 2 of 5 QW-R502-A41.d L1131A Preliminary CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 6.5 V Input Voltage (CE Pin) VCE 6.5 V Output Voltage VOUT -0.3~VIN+0.3 V Output Current IOUT 160 mA Power Dissipation PD 360 mW Operating Temperature Range TOPT -40~85 °C Storage Temperature Range TSTG -55~125 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS PARAMETER Output Voltage Output Current Load Regulation Dropout Voltage Supply Current Supply Current (Standby) Line Regulation Ripple Rejection Input Voltage Output Voltage Temperature Coefficient Short Current Limit CE Pull-Down Resistance CE Input Voltage “H” CE Input Voltage “L” Output Noise On Resistance of Nch Tr. for auto-discharge (Only for D version) SYMBOL TEST CONDITIONS MIN TYP MAX UNIT VIN = Set VOUT+1V, VOUT≤3.0V ×0.985 ×1.015 VOUT V 1mA ≤ IOUT ≤30mA VOUT>3.0V ×0.980 ×1.020 IOUT VIN-VOUT=1.0V 150 mA VIN=Set VOUT+1V, 1mA≤IOUT≤150mA, 28 55 mV 1.2V≤VOUT<2.0V, ∆VOUT/∆IOUT 2.0V≤VOUT<3.0V 33 66 mV 3.0V≤VOUT 35 80 mV refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VDIF VOLTAGE ISS VIN=Set VOUT+1V, IOUT=0mA 10 18 μA Istandby VIN=Set VOUT+1V, VCE =VDD 0.1 1.0 μA Set VOUT+0.5V≤VIN≤6.0V, 0.02 0.10 %/V ∆VOUT/∆VIN IOUT=30mA f=1kHz 50 dB RR f=10kHz, Ripple 0.2Vp-p, 45 dB VIN-VOUT=1.0V, IOUT=30mA VIN 1.8 6.0 V IOUT=30mA ∆VOUT/∆T ±100 ppm/°C -40°C≤TOPT≤85°C ILIM VOUT=0V 60 mA IPD 0.5 µA VCEH 1.5 6.0 V VCEL 0.0 0.3 V en BW=10Hz~100kHz 30 µVrms RLOW VCE=0V 70 Ω ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE PARAMETER Dropout Voltage SYMBOL VDIF TEST CONDITIONS VOUT=1.2V 1.5V<VOUT≤1.6V 1.6V<VOUT≤1.7V IOUT=150mA 1.7V<VOUT≤2.0V 2.0V<VOUT≤2.7V 2.7V<VOUT≤5.0V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP 0.65 0.48 0.41 0.35 0.21 0.18 MAX UNIT V V V V V V 3 of 5 QW-R502-A41.d L1131A Preliminary CMOS IC TEST CIRCUIT VOUT IOUT VOUT V C2 GND VDD UTC L1131A Series C1 CE *C1=Ceramic 1.0μF C2=Ceramic 1.0μF Fig.1 Standard test Circuit Fig.2 Supply Current Test Circuit VOUT IOUT VDD UTC L1131A Series C2 GND Pulse Generator CE *C2=Ceramic 1.0μF Fig.3 Ripple Rejection, Line Transient UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R502-A41.d L1131A Preliminary CMOS IC TYPICAL APPLICATION CIRCUIT (External Components) C2 Ceramic 1.0μF Ex. Murata GRM155B30J105KE18B Kyocera CM05X5R105K06AB C1 Ceramic 1.0μF UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R502-A41.d