October 2013

© 2011 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN23SV04T • Rev. 1.0.1

FAN23SV04T

TinyBuck™ 4 A Integrated Synchronous Buck

Regulator for DDR Termination

Features

Regulator for Bias

Connected to Bypass Internal Regulator

Ω,

LS: 5.46 m

Ω

Applications

Description

The FAN23SV04T is a highly efficient, integrated

TinyBuck™ synchronous buck regulator for use in

tracking applications, such as DDR termination rails.

voltage

divider

to

reduce

total

circuit

size

and

component count. The regulator operates with an input

range from 7 V to 15 V and supports up to 4 A load

currents. The device can operate from a 5 V rail

bypass the internal linear regulator.

This device utilizes Fairchild’s constant on-time control

architecture to provide excellent transient response and

to maintain a relatively constant switching frequency.

Switching

frequency

and

sourcing

over-current

protection can be programmed to provide a flexible

solution for various applications.

Output over-current, and thermal shutdown protections

help

prevent

damage

during

fault

conditions.

A

hysteresis feature restarts the device when normal

operating temperature is reached.

Ordering Information

Part Number

Configuration

Operating

Temperature Range

Output

Current

Package

FAN23SV04TMPX

PWM Mode with

-40 to 85°C

4 A

34-Lead, PQFN, 5.5 mm x 5.0 mm

Please address requests and support questions to tinybucksupport@fairchildsemi.com.