www.addmtek.com

Copyright

© 2007 ADDtek Corp.

1

DD076_A

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AUGUST 2007

A708

DESCRIPTION

FEATURES

The A708 is a 3 channels 20mA advanced current

regulator for driving LEDs. Only bypass capacitor is

required and the noise is very low. The special circuit

design provides over 90% efficiency because of the very

low dropout voltage.

Target end applications are LED backlights for color

LCD display, such as mobile phone, smart phone, PDA,

notebook, and monitor, etc.

Fixed 20mA DC constant sink current.

Individual current sink circuit for each LED

string to prevent short / open circuit on LEDs.

TSOT-26 package available.

High efficiency.

Supply voltage range 2.7V ~ 12V.

Output sustaining voltage up to 17V.

0.1uA standby current.

2KV HBM ESD protection.

Advanced Bi-CMOS process.

TYPICAL APPLICATION CIRCUIT

APPLICATIONS

Small Size Color LCD Backlights.

Mobile Phone, Smart Phone.

LED Backlight for Portable DVD, NB, Monitors,

and UMPC.

PACKAGE PIN OUT

Enable

A708

EN

LED2

VDD

GND

LED1

LED3

A708

TSOT-26

LED1

GND

LED3

1

2

3

4

6

LED2

5

EN

ORDER INFORMATION

Plastic TSOT-26

Y

6-pin

-40 ~ 85

A708YFT

Note: The letter ”F” is marked for Lead Free process, and letter “T” is marked for Tape & Reel.