LR1112G-AD-AF5-R [UTC]
LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR;
| 型号： | LR1112G-AD-AF5-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR |
| 文件： | 总6页 (文件大小：181K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
Package
Packing
Lead Free
Halogen Free
LR1112L-xx-AE5-R
LR1112G-xx-AF5-R
LR1112G-xx-AE5-R
LR1112G-xx-AF5-R
SOT-23-5
SOT-25
Tape Reel
Tape Reel
Note: xx: Output Voltage, refer to Marking Information.
LR1112G-xx-AE5-R
(1)Packing Type
(1) R: Tape Reel
(2)Package Type
(2) AE5: SOT-23-5, AF5: SOT-25
(3) xx: refer to Marking Information
(3)Output Voltage Code
(4)Green Package
(4) G: Halogen Free and Lead Free, L: Lead Free
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Copyright © 2017 Unisonic Technologies Co., Ltd
QW-R102-057.c
LR1112
Preliminary
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
SOT-23-5
SOT-25
AD: ADJ
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
DESCRIPTION
Fixed
ADJ
1
2
3
-
1
2
3
4
-
VIN
GND
EN
Voltage input pin. Bypass to ground through at least 1µF capacitor
Ground
Enable input, active high
ADJ
NC
Output feedback pin
4
5
No connection
5
VOUT
Voltage output pin. Bypass to ground through 1µF ceramic capacitor
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LR1112
Preliminary
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
Fixed Version
Adjustable Version
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LR1112
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VIN
RATINGS
7
UNIT
V
Input Voltage
EN Voltage
VIN+0.3
V
Continuous Load Current
Power Dissipation (Note 1)
Junction Temperature
Internal Limited
640
PD
TJ
mW
°C
+150
Operating Junction Temperature Range
Storage Temperature
TOPR
TSTG
-40 ~ +125
-65 ~ +150
°C
°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.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
VIN
MIN
2.5
0
TYP
MAX
6
UNIT
V
Input Voltage
Output Current (Note 2)
IOUT
150
85
mA
°C
Operating Ambient Temperature
TA
-40
THERMAL RESISTANCES CHARACTERISTICS
PARAMETER
Junction to Ambient
SYMBOL
RATINGS
280
UNIT
°C/W
θJA
Note: θJA is measured in the natural convection at TA=25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
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LR1112
Preliminary
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(TA=25°C, VIN=VOUT+1V, CIN=1μF, COUT=1μF, VEN=2V, unless otherwise stated)
PARAMETER
SYMBOL
IQ
TEST CONDITIONS
VEN=VIN, IOUT=0mA
EN=VIN, IOUT=150mA
MIN
TYP
30
MAX
50
85
1
UNIT
μA
Input Quiescent Current
V
50
μA
Input Shutdown Current
Input Leakage Current
ISHDN
ILEAK
VEN=0V, IOUT=0mA
μA
VEN=0V, OUT grounded
1
μA
Dropout Voltage (Note 3)
ADJ Reference Voltage (Adjustable
Version)
VDropout IOUT=150mA
150
0.4
300
mV
VREF
IADJ
IOUT=0mA
V
μA
%
ADJ Leakage (Adjustable Version)
1
2
TA=-40°C~85°C,
Output Voltage Accuracy
Line Regulation
Load Regulation
Start-Up Time
PSRR
VOUT
-2
I
OUT=30mA
∆VOUT VIN=(VOUT +1V)~VIN-Max
/∆VIN/V EN=VIN, IOUT=1mA
∆VOUT VIN=(VOUT +1V)~VIN-Max
/VOUT
,
0.01
0.20
0.6
%/V
%
V
,
-0.6
I
OUT from 1mA to 150mA
EN=0V~2.0V, VOUT=1.8V
OUT=150mA
V
I
tST
80
65
μs
VIN=[VOUT +1V]VDC+0.5VppAC,
f =100Hz, IOUT=30mA
PSRR
ILIMIT
dB
mA
VIN=(VOUT +1V)~VIN-Max
,
Current Limit
200
1.4
300
VOUT/ROUT=0.5A
EN Input Logic Low Voltage
EN Input Logic High Voltage
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
VIL
VIH
VIN=VIN-Min ~VIN-Max
VIN=VIN-Min ~VIN-Max
0.4
V
V
TSHDN
THYS
140
15
°C
°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.
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LR1112
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
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. UTC reserves the right to
make changes to information published in this document, including without limitation specifications and
product descriptions, at any time and without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
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