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AT1380A

Preliminary Product Information

Switching Regulator Controller for LCD Bias

Features

鈥?2.5 to 15 V supply voltage operating range.

鈥?Low current consumption: 6 mA in operation,

1

碌A

or less in stand-by.

鈥?20 kHz to 1 MHz operation frequency range.

鈥?Provides a fixed output current with minimal

supply voltage fluctuations by using an external

resistor to set the output current.

鈥?Totem-pole output.

鈥?Built-in soft start circuit.

鈥?Built-in timer-latch short circuit detection and

protection circuit (SCP).

General Description

The AT1380A is a single-channel PWM control IC

for DC/DC conversion with soft start function and

short circuit detection. Adjustable soft start is

programmed with an external capacitor on SCP

pin. The AT1380A is ideal for up, down and fly-

back conversion.

Applications

鈥?LCD Displays

鈥?PDAs

鈥?Digital Still Cameras

Block Diagram

Aimtron reserves the right without notice to change this circuitry and specifications.

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

WWW:

http://www.aimtron.com.tw

Fax: 886-3-563-0879

Email:

service@aimtron.com.tw

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