AAT3166 Datasheet PDF - Skyworks High Efficiency 1X/1.5X/2X Charge Pump Specs

AAT3166 - High Efficiency 1X/1.5X/2X Charge Pump

Datasheet Summary

Description

The AAT3166 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

VIN Range: 2.7V to 5.5V.
Fully Programmable Current with Single Wire.
16-Step Logarithmic Scale.
14/18/27mA Max Current.
Four Low-Current Settings Down to 115µA.
Low IQ (50µA) for Single-Channel, Low-Current Mode.
Tri-Mode 1X, 1.5X, 2X Charge Pump for Maximum Efficiency and VF Coverage.
Drives Up to Four LEDs.
Individual Main-Sub (3-1) Group Control.
No Inductors, Low Noise Operation.
1MHz Constant Switching Freq.

Datasheet Details

Part number	AAT3166
Manufacturer	Skyworks
File Size	901.79 KB
Description	High Efficiency 1X/1.5X/2X Charge Pump
Datasheet	AAT3166 Datasheet
Additional preview pages of the AAT3166 datasheet.

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Full PDF Text Transcription

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DATA SHEET AAT3166 AAT3166 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications General Description The AAT3166 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 AAT3166 is capable of driving four LEDs for a total of 108mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving highercurrent 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, batterypowered applications.

Published: Jun 28, 2019 |