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LT1020ISW#TRPBF

Description
PMIC - 稳压器 - 线性 正 可调式 1 输出 125mA 16-SOIC
Categorysemiconductor    Multi-channel IC (PMIC)   
File Size260KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LT1020ISW#TRPBF Overview

PMIC - 稳压器 - 线性 正 可调式 1 输出 125mA 16-SOIC

LT1020ISW#TRPBF Parametric

Parameter NameAttribute value
category
MakerADI
series-
PackageTape and Reel (TR)
Output configurationjust
Output typeAdjustable
Voltage - input (maximum)36V
Voltage - Output (minimum/fixed)2.5V
Voltage - Output (maximum)35.15V
Voltage drop (maximum)0.85V @ 125mA
Current - Output125mA
PSRR-
Control characteristicscurrent limit, enable
Protective functionOvercurrent, overtemperature, short circuit
Operating temperature0°C ~ 100°C
Installation typesurface mount type
Package/casing16-SOIC (0.295", 7.50mm wide)
Supplier device packaging16-SOIC
Number of voltage regulators1
Current - static (Iq)95 µA
Current - Power Supply (Maximum)20 mA
Basic product numberLT1020
LT1020
Micropower Regulator
and Comparator
FEATURES
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Input Voltage Range: 4.5V to 36V
40µA Supply Current
125mA Output Current
2.5V Reference Voltage
Reference Output Sources 1mA and Sinks 0.5mA
Dual Output Comparator
Comparator Sinks 10mA
Dropout Detector
0.2V Dropout Voltage
Thermal Limiting
Available in SO Package
The LT
®
1020 is a combination micropower positive regu-
lator and free collector comparator on a single monolithic
chip. With only 40µA supply current, the LT1020 can
supply over 125mA of output current. Input voltage range
is from 4.5V to 36V and dropout voltage is 0.6V at 125mA.
Dropout voltage decreases with lower load currents. Also
included on the chip is a class B output 2.5V reference that
can either source or sink current. A dropout detector
provides an output current to indicate when the regulator
is about to drop out of regulation.
The dual output comparator can be used as a comparator
for system or battery monitoring. For example, the com-
parator can be used to warn of low system voltage while
the dropout detector shuts down the system to prevent
abnormal operation. Frequency compensation of the com-
parator for amplifier applications can be obtained by
adding external output capacitance. Dual output or posi-
tive and negative regulators can also be made.
The 2.5V reference will source or sink current. This allows
it to be used as a supply splitter or auxiliary output.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
Battery Systems
Battery Backup Systems
Portable Terminals
Portable Instruments
TYPICAL APPLICATIO
5V Regulator
V
IN
> 5.2V
I
Q
= 40µA
3
V
IN
LT1020
V
OUT
2
0.001µF
FB
11
1M
1020 TA01
Dropout Voltage and Supply Current
1
10
5V
1M
10µF
GND
9
10µF
DROPOUT VOLTAGE (V)
+
+
0.1
0.01
0.1
U
SUPPLY CURRENT (mA)
1
10
1
100
OUTPUT CURRENT (mA)
0.1
1000
1020 TA02
U
U
sn1020 1020fcs
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