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AAT3169 - High Efficiency 1X/1.5X/2X Charge Pump

Datasheet Summary

Description

The AAT3169 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.

Features

  • ChargePump™.
  • Each output of the AAT3169 is equipped with builtin protection for output short-circuit and auto-disable for load short-circuit conditions. Built-in softwww. DataSheet4U. com start circuitry prevents excessive inrush current during start-up. A low-current shutdown feature dis.

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Datasheet preview – AAT3169

Datasheet Details

Part number AAT3169
Manufacturer AAT
File Size 419.95 KB
Description High Efficiency 1X/1.5X/2X Charge Pump
Datasheet download datasheet AAT3169 Datasheet
Additional preview pages of the AAT3169 datasheet.

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Full PDF Text Transcription

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High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications General Description The AAT3169 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 AAT3169 is capable of driving six LEDs for a total of 180mA 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) make this part ideally suited for small, battery-powered applications.
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