AAT3167 Datasheet PDF - Skyworks High Efficiency 1X/1.5X/2X Charge Pump Specs

AAT3167 - High Efficiency 1X/1.5X/2X Charge Pump

Datasheet Summary

Description

The AAT3167 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 Five LEDs.
Individual Main-Sub (4-1) Group Control.
No Inductors, Low Noise Operation.
1MHz Constant Switching Freq.

Datasheet Details

Part number	AAT3167
Manufacturer	Skyworks
File Size	752.18 KB
Description	High Efficiency 1X/1.5X/2X Charge Pump
Datasheet	AAT3167 Datasheet
Additional preview pages of the AAT3167 datasheet.

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Full PDF Text Transcription

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DATA SHEET AAT3167 AAT3167 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications General Description The AAT3167 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 AAT3167 is capable of driving five LEDs for a total of 135mA 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, batterypowered applications.

Published: Jun 28, 2019 |