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TS1540

Description
1A Low Dropout Voltage Regulator with Low Quiescent Current
File Size179KB,4 Pages
ManufacturerTaiwan Semiconductor
Websitehttp://www.taiwansemi.com/
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TS1540 Overview

1A Low Dropout Voltage Regulator with Low Quiescent Current

TS1540
1A Low Dropout Voltage Regulator
with Low Quiescent Current
TO-252
(DPAK)
Pin Definition:
1. Output
2. Ground
3. Input
General Description
TS1540 of high current LDOs has been developed for portable application where low quiescent current is an important
requirement. The device features excellent line and load transient response which does not exceed 10% of nominal
output value for full operating temperature range even during power ON cycle and short circuit removal. Internally
trimmed, temperature compensated bandgap reference guarantees 2.5% accuracy for full range of input voltage, output
current and temperature. Included on the chip are accurate current limit and thermal shutdown protection. Device
stability is achieved with only two external low ESR ceramic capacitors.
Features
Very Low Ground Current (I
GND
= 1mA)
Excellent Line Regulation
Excellent Load Regulation
Very Low transient Overshoot
Stable with low ESR output Capacitor (ESR = 0mΩ)
Thermal Shutdown
Current Limit
Ordering Information
Part No.
Package
Packing
TS1540CPxx RO
TO-252
2.5Kpcs / 13” Reel
Note: Where
xx
denotes voltage option, available are
50=
5.0V
33=
3.3V
25=
2.5V
18=
1.8V
15=
1.5V
Leave blank for adjustable version.
Application
Disk Drive Circuits
Desktop Computers
Laptop, Notebook Computers
Typical Application Circuit
Block Diagram
Fixed Output Voltage Version
V
OUT
= V
REF
(1+R2/R1) + I
adj
R2
Adjustable Output Voltage Version
Note:
1. Use Low ESR Capacitors.
2. C
IN
should be placed as closed to V
IN
as possible
1/4
Version: A07

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TS1540 TS1540CP25RO TS1540CP33RO TS1540CP50RO TS1540CP18RO TS1540CP15RO
Description 1A Low Dropout Voltage Regulator with Low Quiescent Current 1A Low Dropout Voltage Regulator with Low Quiescent Current 1A Low Dropout Voltage Regulator with Low Quiescent Current 1A Low Dropout Voltage Regulator with Low Quiescent Current 1A Low Dropout Voltage Regulator with Low Quiescent Current 1A Low Dropout Voltage Regulator with Low Quiescent Current
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