AMS3109

Micropower 700mA Low Noise Fast Transient Response LDO

02/11/2010

www.advanced-monolithic.com

Phone (925) 443-0722

2

Fax (925) 443-0723

Pin Description (SOIC-8 EDP package)

Pin #

Symbol

Description

1

BYP

bypass the noise generated by the internal bandgap. This improves power supply

rejection ratio and output noise.

2

NC

No Connection

3

GND

Ground

4

Input supply Voltage. It powers the internal control circuitry and the internal power

5

Output Voltage

6

ADJ

Provides feedback to error amplifier from the resistive divider that sets the output

voltage.

7

NC

No Connection

8

EN

Enable pin. It controls the electrical on/off of the device. When connected to logic

low, the device shuts off and consumes less than1µA of current. Logic high will

resume normal operation.

9

GND

Expose pad. Connected to PCB ground plane for good thermal dissipation.

Pin Configuration

SOIC-8EDP (Top View)