AAT3156 - High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications

Product Overview

Advanced Analogic Technologies

Datasheet Details

Part number	AAT3156
Manufacturer	Advanced Analogic Technologies
File Size	388.91 KB
Description	High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications
Datasheet	AAT3156 Datasheet
Additional preview pages of the AAT3156 datasheet.

Product details

Description

The AAT3156 is a low noise, constant frequency charge pump DC/DC converter that uses a trimode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications.

The AAT3156 is capable of driving six-channel LEDs at a total of 180mA from a 2.7V to 5.

Features

ChargePump™.
VIN Range: 2.7V to 5.5V Fully Programmable Current with Single Wire.
16-Step Logarithmic Scale.
15/20/30mA Max Current.
Four Low Current Settings Down to 50µA.
Low IQ (50µA) for Low Current Mode Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives Six Channels of LEDs Individual Main/Sub.

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Published: Jun 25, 2006 |