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AAT3167

Skyworks
Part Number AAT3167
Manufacturer Skyworks
Description High Efficiency 1X/1.5X/2X Charge Pump
Published Jun 28, 2019
Detailed Description DATA SHEET AAT3167 AAT3167 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications General Description The AA...
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AAT3167
AAT3167

Overview
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.
Skyworks' AS2Cwire™ (Advanced Simple Serial Control) serial digital input is used to enable, disable, and set current for each LED with a 16-level logarithmic scale plus four low-current settings down to 115µA.
For optimized efficiency, low-current settings require only 50µA of housekeeping current.
Each outp...


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