UNISONIC TECHNOLOGIES CO., LTD

UC3658

Preliminary

CMOS IC

www.unisonic.com.tw

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Copyright © 2014 Unisonic Technologies Co., Ltd

QW-R502-A75.a

3A, 1MHz, HIGH EFFICIENCY

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DESCRIPTION

The UTC UC3658 is a high-efficiency 1MHz synchronous

step-down DC-DC regulator IC capable of delivering up to 3A

output current. The UTC UC3658 operates over a wide input

voltage ranging form 3~5.5V and integrate main switch and

conduction loss.

Low output voltage ripple and small external inductor and

capacitor sizes are achieved with 1MHz switching provides the

system reset function and facilitates the output sequencing design.

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FEATURES

* 3~5.5V input voltage range

* 1MHz switching frequency minimizes the external components

* Internal softstart limits the inrush current

*100% dropout operation

* Output power good indicator

* RoHS compliant and halogen free

* Compact and thermally enhanced SO8 package with exposed

paddle

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ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

UC3658L-SH2-R

UC3658G-SH2-R

HSOP-8

Tape Reel

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MARKING INFORMATION

PACKAGE

MARKING

HSOP-8