AAT3131 Datasheet High Efficiency 1X/1.5X Fractional Charge Pump

Manufacturer: AAT

AAT3131 high efficiency 1x/1.5x fractional charge pump by AAT - Datasheet Preview

Datasheet Details

Part number	AAT3131
Manufacturer	AAT
File Size	301.51 KB
Description	High Efficiency 1X/1.5X Fractional Charge Pump
Datasheet	AAT3131 Datasheet

General Description

The AAT3131 is a low noise, constant frequency charge pump DC/DC converter that uses a dual mode load switch (1X) and fractional (1.5X) conversion to maximize efficiency for white LED applications.

The device can be used to produce current levels up to 20mA in three of its outputs and 30mA in one of its outputs to drive LEDs from a 2.7V to 5.5V input.

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

Overview

AAT3131 High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications.

Key Features

ChargePump™ AnalogicTech's Simple Serial Control™ (S2Cwire™) interface is used to enable, disable, and set the LED drive current in two groups: the three 20mA outputs and the single 30mA output with multiple level logarithmic scales. The AAT3131 has a thermal management system to protect the device in the event of a short-circuit condit.

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