TS1540 Datasheet, PDF (1/4 Pages) Taiwan Semiconductor Company, Ltd – 1A Low Dropout Voltage Regulator with Low Quiescent Current

TO-252
(DPAK)
Pin Definition:
1. Output
2. Ground
3. Input
TS1540
1A Low Dropout Voltage Regulator
with Low Quiescent Current
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
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Version: A07