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AAT3158

Skyworks
Part Number AAT3158
Manufacturer Skyworks
Description High Efficiency 1X/1.5X/2X Charge Pump
Published Jun 28, 2019
Detailed Description DATA SHEET AAT3158 AAT3158 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications General Description The AA...
Datasheet PDF File AAT3158 PDF File

AAT3158
AAT3158

Overview
DATA SHEET AAT3158 AAT3158 High Efficiency 1X/1.
5X/2X Charge Pump for White LED Applications General Description The AAT3158 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 AAT3158 is capable of driving up to four LED channels at 20mA per channel 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 VIN and VOUT) make this part ideally suited for small, batterypowered applications.
Skyworks' S2Cwire™ (Simple Serial Control) serial digital input is used to enable, disable, and set current for each LED with 16 settings down to 50µA.
The low current mode supply current can be as low as 50µA to save power.
Each output of the AAT3158 is equipped with built-in protection for VOUT...


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