 Semiconductor Components Industries, LLC, 2011

April, 2011 − Rev. 3

1

Publication Order Number:

CMPWR280/D

CMPWR280

Dual Input SmartORt Power

Switch

Product Description

The ON Semiconductor’s SmartOR

t CMPWR280 is a fully

protected Dual−Input low−dropout CMOS regulator that also provides

the necessary control signal for driving an external auxiliary

P−channel MOSFET switch. The SmartOR

t device automatically

external switch.

power source.

turn−on an external P−channel MOSFET switch from an auxiliary

All the necessary control circuitry needed to provide a smooth and

automatic transition between all three supplies has been incorporated.

voltage.

The CMPWR280 is internally protected against output

short−circuits, current overload and thermal overload.

The CMPWR280 is housed in a standard, 5−lead TO−263 package

and is available with optional lead−free finishing.

Features

Applications

MARKING DIAGRAM

Device

Package

ORDERING INFORMATION

http://onsemi.com

CMPWR280TO

TO−263

(Pb−Free)

750/Tape & Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

TO−263

TO/TN SUFFIX

CASE 418AH

CMPWR280TN

TO−263

(Pb−Free)

750/Tape & Reel

CMPWR280 = Specific Device Code

XX

= TO/TN

A

= Assembly Location

WL

= Wafer Lot

Y

= Year

WW

= Work Week

G

= Pb−Free Package

CMPWR280XX

AWLYWWG

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