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AT1387A

Preliminary Product Information

6-Channel DC-DC Converter for DSC

Features

鈥?Low start-up power supply voltage :1.4V(CH6)

鈥?Wide supply voltage range from 2.5V to 6.5V

(CH1~6)

鈥?High speed operation is possible: Maximum

1 MHz

鈥?Supports for up, flyback and up/down SEPIC

conversion (CH3,4,5,6)

鈥?Supports for down and up/down Zeta conversion

(CH1,2)

鈥?Synchronized rectification on CH1,CH2

鈥?Supports for negative voltage feedback CH5

鈥?Built-in On/Off function

鈥?Built-in Soft-Start Function

鈥?Built-in Short-Circuit Protection.

General Description

The AT1387A is a 6-channel PWM DC/DC control

IC for low voltage applications with a soft start

function and short circuit detection function. This

IC is ideal for up conversion, down conversion,

and up/down conversion (using a step-up/step-

down SEPIC ,Zeta system with free input and

output settings). 6 channels can be built in the

LQFP48 package, each channel be controlled, and

soft-start.

The AT1387A include one comparator to generate

low-battery warning outputs. It also contains two

high efficiency topology by using synchronous

rectification PWM(It can be disable by floating

OUT1_2,OUT2_2.)

Applications

鈥?Digital Cameras

鈥?CCD Imaging Devices

鈥?Camcorders

Pin Assignment

Ordering Information

Part number

AT1387AF

AT1387AF_PBF

AT1387AF_GRE

Package

LQFP48

LQFP48, PB-Free

LQFP48, Green

Marking

AT1387AF

AT1387AF, date code with one bottom line

AT1387AF, date code with two bottom line

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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