UNISONIC TECHNOLOGIES CO., LTD

USR1051

Preliminary

LINEAR INTEGRATED CIRCUIT

3 A SYNCHRONOUS BUCK

REGULATOR

DESCRIPTION

The UTC USR1051 is a high efficiency, 3A synchronous buck

regulator. The UTC USR1051 works from 5V to 23V input voltage

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

output voltage adjustable down to 0.8V.

The UTC USR1051 comes in an exposed pad HSOP-8

package and is rated over a -40°C~+85°C operating ambient

temperature range.

FEATURES

* Synchronous Buck

* 5V~23V operating input voltage range

* High efficiency

* Internal soft start

* Output voltage adjustable to 0.8V

* 3A continuous output current

* Cycle-by-cycle current limit

* 400kHz PWM operation

* Pre-bias start-up

* Thermal shutdown

* Short-circuit protection

* Exposed pad HSOP-8 package

HSOP-8

ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

USR1051L-SH2-T

USR1051G-SH2-T

HSOP-8

Tube

USR1051L-SH2-R

USR1051G-SH2-R

HSOP-8

Tape Reel

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