AAT3142 Datasheet High Efficiency 1X/1.5X/2X Charge Pump

Manufacturer: AAT

AAT3142 high efficiency 1x/1.5x/2x charge pump by AAT - Datasheet Preview

Datasheet Details

Part number	AAT3142
Manufacturer	AAT
File Size	502.34 KB
Description	High Efficiency 1X/1.5X/2X Charge Pump
Download	AAT3142 Download (PDF)

General Description

The AAT3142 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 device produces current levels up to 30mA on each of its three 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

AAT3142 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications.

Key Features

ChargePump™ AnalogicTech's Simple Serial Control™ (S2Cwire™) digital input is used to enable, disable, and set the LED drive current with a 32-level logarithmic scale LED brightness control. The AAT3142 has a thermal management system to protect the device in the event of a short-circuit condition at an output pin.

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