Copyright

© ANPEC Electronics Corp.

Rev. A.3 - Jul., 2013

APW7336

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

2A 24V 340kHz synchronous Buck Converter

Features

General Description

•

Wide Input Voltage from 4.5V to 24V

•

2A Continuous Output Current

•

Adjustable Output Voltage from 0.8V to 20V

•

Intergrated High/Low Side MOSFET

•

PFM/PWM mode Operation

•

Fixed 340kHz Switching Frequency

•

Stable with Low ESR Ceramic Output Capacitors

•

Power-On-Reset Detection

•

Programmable Soft-Start

•

Over-Temperature Protection

•

Current-Limit Protection with Frequency Foldback

•

Enable/Shutdown Function

•

Small TDFN3x3-10 Packages

•

Lead Free and Green Devices Available

(RoHS Compliant)

Applications

•

LCD Monitor/TV

•

Set-Top Box

•

DSL, Switch HUB

•

Notebook Computer

APW7336 is a 2A synchronous buck converter with inte-

grated power MOSFETs. The APW7336 design with a cur-

rent-mode control scheme, can convert wide input volt-

age of 4.5V to 24V to the output voltage adjustable from 0.

8V to 20V to provide excellent output voltage regulation.

The APW7336 is equipped with an automatic PFM/PWM

mode operation. At light load, the IC operates in the PFM

mode to reduce the switching losses. At heavy load, the

IC works in PWM.

The APW7336 is also equipped with Power-on-reset, soft-

start, soft-stop, and whole protections (under-voltage,

over-temperature, and current-limit) into a single package.

This device, available TDFN3x3-10, provides a very com-

pact system solution external components and PCB area.

Simplified Application Circuit

Pin Configuration

APW7336

BS 3

10 COMP

EN 1

SS 2

VIN 5

9 FB

7 GND

8 GND

VIN 4

6 LX

APW7336

TDFN3x3-10

(Top View)

11

11

GND

Exposed Pad

The pin 7 and 8 must be connected to the pin 11(Exposed Pad)