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AAT2868 - constant-frequency charge pump DC/DC converter

AAT2868 Description

PRODUCT DATASHEET AAT2868 SystemPowerTM CABC Compatible 4 Channel Backlight Driver with Dual LDO Regulators General .
The AAT2868 is a low-noise, constant-frequency charge pump DC/DC converter that uses a dual-mode load switch (1x) and fractional (1.

AAT2868 Features

* 2.7V to 5.5V Supply Voltage Range
* Charge Pump for LED Driver ▪ Dual Mode 1x/1.5x ▪ Drives Up to 4 LEDs with up to 31mA each ▪ Linear LED Output Control Options
* Maximum LED Current Set by AS2Cwire Interface, 32 Steps
* PWM Interface Dimming from 100% to 1% Duty C

AAT2868 Applications

* The AAT2868 is capable of driving 4 white LEDs at a total 124mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher-current LEDs. A low external parts count (two 1μF flying capacitors and two small 1μF capacitors at IN and OUTCP) makes the AAT

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Datasheet Details

Part number
AAT2868
Manufacturer
Advanced Analogic Technologies
File Size
969.94 KB
Datasheet
AAT2868_AdvancedAnalogicTechnologies.pdf
Description
constant-frequency charge pump DC/DC converter

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constant-frequency charge pump converter Advanced Analogic Technologies
Advanced Analogic Technologies AAT2868-like datasheet