AAT3140 Datasheet High Efficiency 1X/1.5X/2X Charge Pump

Manufacturer: AAT

AAT3140 high efficiency 1x/1.5x/2x charge pump by AAT - Datasheet Preview

Datasheet Details

Part number	AAT3140
Manufacturer	AAT
File Size	504.01 KB
Description	High Efficiency 1X/1.5X/2X Charge Pump
Datasheet	AAT3140 Datasheet

General Description

The AAT3140 is a low noise, constant frequency charge pump DC/DC converter that uses a tri-mode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications.

The device produces current levels up to 30mA on each of its four current source outputs to drive various arrangements of LEDs from a 2.7V to 5.5V input.

Outputs may be operated individually or in parallel for driving higher-current LEDs.

Overview

AAT3140 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications.

Key Features

ChargePump™ VIN Range: 2.7V to 5.5V Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives Low-VF and High-VF Type LEDs Up to Four 30mA Outputs 32-Position Logarithmic Scale with Digital Control Low Noise Constant Frequency Operation 1MHz Switching Frequency AutoBias Technology Small.

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