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Número de pieza | LR1112 | |
Descripción | FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR | |
Fabricantes | Unisonic Technologies | |
Logotipo | ||
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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 |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet LR1112.PDF ] |
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