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AT731

White LED Step-Up Converter

AT731 Features

* Inherently Matched LED Current High Efficiency: 84% Typical Drives Up to Four LEDs from a 3.2V Supply Drives Up to Eight LEDs from a 5V Supply 36V Rugged Bipolar Switch Fast 1.2MHz Switching Frequency Uses Tiny 1mm Tall Inductors Requires Only 0.22µF Output Capacitor APPLICATION Cellular Phones PDAs

AT731 General Description

The AT731 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-lon cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need .

AT731 Datasheet (0.98 MB)

Preview of AT731 PDF

Datasheet Details

Part number:

AT731

Manufacturer:

IAT

File Size:

0.98 MB

Description:

White led step-up converter.

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AT731 White LED Step-Up Converter IAT

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