UNISONIC TECHNOLOGIES CO., LTD

P1686

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

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Copyright © 2008 Unisonic Technologies Co., Ltd

QW-R103-039.C

600KHZ, 3A STEP-DOWN

CURRENT MDOE SWITCHING

REGULATOR

DESCRIPTION

As a current mode switching regulator with an integrated

switch, the UTC P1686 is operating at 600kHz with separate sync

and enable functions. In order to avoid frequency beating in noise

sensitive applications the sync function allows customers to

synchronize to a faster clock. Cost effective low power solutions

is considered in the integrated switch ,and so peak switch current

3 amps. Very small passive components is considered in High

frequency of operation. Current mode operation: fast dynamic

response and instantaneous duty cycle adjustment as the input

changes, as a ideal for CPE applications where the input is a wall

plug power.

The low shutdown current as ideal for portable applications

when battery life is important.

The UTC P1686 is synchronizable to a frequency from 750kHz

to 1.2MHz.

FEATURES

* Integrated 3 Amp switch

* 600kHz frequency of operation

* Current mode controller

* Synchronizable to higher frequency up to 1.2MHz

* 6μA low shutdown current

*Pb-free plating product number: P1686L

ORDERING INFORMATION

Ordering Number

Normal

Lead Free Plating

Package

Packing

P1686-S08-R

P1686L-S08-R

SOP-8

Tape Reel

P1686-S08-T

P1686L-S08-T

SOP-8

Tube

P1686-SH2-R

P1686L-SH2-R

HSOP-8

Tape Reel

P1686-SH2-T

P1686L-SH2-T

HSOP-8

Tube