UNISONIC TECHNOLOGIES CO., LTD

USR1021

Preliminary

LINEAR INTEGRATED CIRCUIT

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Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R103-073.a

3A SYNCHRONOUS BUCK

REGULATOR



DESCRIPTION

The UTC USR1021 is a high efficiency, 3A synchronous buck

regulator. The UTC USR1021 works from a 6V to 18V input

voltage range, and provides up to 3A of continuous output current

with an output voltage adjustable down to 0.8V.

The UTC USR1021 comes in an SOP-8 packages and is rated

over a -40°C~+85°C ambient temperature range.



FEATURES

* 6V~18V operating input voltage range

* High efficiency

* Internal soft start

* 1.5% initial output accuracy

* Output voltage adjustable to 0.8V

* 3A continuous output current

* Cycle-by-cycle current limit

* 500kHz PWM operation

* Thermal shutdown

* Short-circuit protection

SOP-8



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

USR1021L-S08-R

USR1021G-S08-R

SOP-8

Tape Reel

USR1021L-S08-T

USR1021G-S08-T

SOP-8

Tube

Note: xx: Output Voltage, refer to Marking Information.