PDF LR1112 Data sheet ( Hoja de datos )

Número de pieza	LR1112
Descripción	FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR
Fabricantes	Unisonic Technologies
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No Preview Available ! UNISONIC TECHNOLOGIES CO., LTD LR1112 Preliminary LINEAR INTEGRATED CIRCUIT 150mA, LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR  DESCRIPTION The UTC LR1112 is a CMOS-based 150mA voltage regulator with low supply current, low dropout, adjustable and fixed output voltage, The device consists of pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry. The device is turned on when EN pin is set to logic high level.  FEATURES * 150mA low dropout regulator with EN * Very low IQ over full load: 30µA * Wide input voltage range: 2.5~6V * Wide adjustable output: 0.8V~5.0V * Fixed output options: 1.0V~3.3V * Fast start-up time: 80µs * PSRR: 65dB at 100Hz * Stable with low ESR, 1µF ceramic output capacitor * Low dropout: 150mV typical at 150mA * Excellent Load/Line Transient Response * Current limit protection * Ambient temperature range: -40ºC~85°C  ORDERING INFORMATION Ordering Number LR1112G-xx-AE5-R Note: xx: Output Voltage, refer to Marking Information. Package SOT-23-5 LR1112G-xx-AE5-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Green Package (1) R: Tape Reel (2) AE5: SOT-23-5 (3) xx: refer to Marking Information (4) G: Halogen Free and Lead Free Packing Tape Reel www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 6 QW-R102-057.b 1 page LR1112 Preliminary LINEAR INTEGRATED CIRCUIT  ELECTRICAL CHARACTERISTICS (TA=25°C, VIN=VOUT+1V, CIN=1μF, COUT=1μF, VEN=2V, unless otherwise stated) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Quiescent Current IQ VEN=VIN, IOUT=0mA VEN=VIN, IOUT=150mA 30 50 μA 50 85 μA Input Shutdown Current ISHDN VEN=0V, IOUT=0mA 1 μA Input Leakage Current ILEAK VEN=0V, OUT grounded 1 μA Dropout Voltage (Note 3) VDropout IOUT=150mA 150 300 mV ADJ Reference Voltage (Adjustable Version) VREF IOUT=0mA 0.4 V ADJ Leakage (Adjustable Version) IADJ 1 μA Output Voltage Accuracy VOUT TA=-40°C~85°C, IOUT=30mA -2 2 % Line Regulation ∆VOUT VIN=(VOUT +1V)~VIN-Max, /∆VIN/V VEN=VIN, IOUT=1mA 0.01 0.20 %/V Load Regulation ∆VOUT /VOUT VIN=(VOUT +1V)~VIN-Max, IOUT from 1mA to 150mA -0.6 0.6 % Start-Up Time tST VEN=0V~2.0V, VOUT=1.8V IOUT=150mA 80 μs PSRR PSRR VIN=[VOUT +1V]VDC+0.5VppAC, f =100Hz, IOUT=30mA 65 dB Current Limit ILIMIT VIN=(VOUT +1V)~VIN-Max, VOUT/ROUT=0.5A 200 300 mA EN Input Logic Low Voltage VIL VIN=VIN-Min ~VIN-Max 0.4 V EN Input Logic High Voltage VIH VIN=VIN-Min ~VIN-Max 1.4 V Thermal Shutdown Threshold TSHDN 140 °C Thermal Shutdown Hysteresis THYS 15 °C Notes: 1. Ratings apply to ambient temperature at 25°C 2. The device maintains a stable, regulated output voltage without a load current. 3. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. This parameter only applies to output voltages above 1.8V. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R102-057.b 5 Page

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