Revision 8/3/2007

Preliminary and all contents are subject to change without prior notice.

© Seaward Electronics, Inc., 2007 • www.seawardinc.com • Page 1

Features

1.3V typical dropout at full load current

Fixed 1.2V± 2% output voltage

Fast transient response

Output current limiting

Built-in thermal shutdown

Good noise rejection

Rugged 2KV ESD withstand capability.

Available in SOT223 Packages.

RoHS Compliant and 100% Lead (Pb)-Free

Description

SE1122 is a low dropout positive fixed-mode regulator

with minimum of 1A output current capability. The

product

is

specifically

designed

to

provide

well-regulated supply for low voltage IC applications

such as high-speed bus termination and low current

1.2V logic supply. SE1122 is also well suited for other

applications such as VGA cards. SE1122 is

guaranteed to have a typical 1.3V dropout at full load

current making it ideal to provide well-regulated

outputs of 1.2 output voltage with 2.7V input voltage

supply.

Pin Configuration

Ordering Information

Device

Package

SE1122

SOT-223

(Lead-free)

Fixed output voltages

1.2V

Application

PC peripheral

Communication

Typical Application