© Semiconductor Components Industries, LLC, 2013

June, 2013 − Rev. P1

1

Publication Order Number:

NCP5269A/D

NCP5269A

Advance Information

Synchronous Buck

Controller with Auto Power

Saving Mode and 2‐bit VID

Inputs for System Agent

NCP5269A is a synchronous buck controller that is optimized for

converting the battery voltage or adaptor voltage into power supply

rails required in notebook and desktop system. NCP5269A is designed

for applications requiring dynamically selected slew-rate controlled

output voltages. The soft-start is programmed by a single capacitor.

Voltage identification logic-inputs select four resistor programmed

set-point reference voltages that directly set the output voltage of the

converter between 0.65 V to 1.5 V. NCP5269A supports high

efficiency, fast transient response and provides power good signal.

ON Semiconductor proprietary adaptive-ripple control enables

seamless transition from CCM to DCM, where converter runs at

reduced switching frequency with much higher efficiency. The part

operates with input voltage ranging from 3.3 V to 28 V. NCP5269A is

available in a 20-pin 3 mm

× 3 mm QFN package.

Features

On-the-Fly Transients

and Power Good Output

Applications

This document contains information on a new product. Specifications and information

herein are subject to change without notice.

QFN20

CASE 485BC

Device

Package

ORDERING INFORMATION

NCP5269AMNTWG

QFN20

(Pb−Free)

3,000 /

Tape & Reel

MARKING DIAGRAM

5269A

= Specific Device Code

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

http://onsemi.com

†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.

PIN CONNECTIONS

(Top View)

(Note: Microdot may be in either location)

5269A

ALYWG

G

BST

GH

SWN

VCCP

GL/FSET

EN

VCC

VID1

VID0

V3

AGND

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