© Semiconductor Components Industries, LLC, 2006

July, 2006 − Rev. 2

1

Publication Order Number:

MC74HC14A/D

NCP5173

1.5 A 560 kHz−1.0 MHz

Boost Regulator

The NCP5173 is a switching regulator with a high efficiency, 1.5 A

integrated switch. It runs at a base frequency of 560 kHz and can be

synchronized to an external clock up to 1.0 MHz. This part operates

over a wide input voltage range, from 2.7 V to 30 V. The flexibility of

the design allows the chip to operate in most power supply

configurations, including boost, flyback, forward, inverting, and

SEPIC. The IC uses current mode architecture, which allows excellent

load and line regulation, as well as a practical means for limiting

current. Combining high frequency operation with a highly integrated

regulator circuit results in an extremely compact power supply

solution. The circuit design includes provisions for features such as

frequency synchronization, shutdown, and feedback controls for

positive voltage regulation.

Features

Overcurrent Condition

Applications

http://onsemi.com

MARKING

DIAGRAM

Device

Package

ORDERING INFORMATION

NCP5173MN

QFN

95 Units/Rail

NCP5173MNR2

QFN

2500 Tape & Reel

NCP5173 = Specific Device Code

A

= Assembly Location

WL

= Wafer Lot

YY

= Year

WW

= Work Week

5x6 QFN

MN SUFFIX

CASE 505AC

NOTE: Thermal pad is electrically isolated from IC

and all pins.

NCP5173

AWLYYWW

1

†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.