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AAT3123 Datasheet PDF

Skyworks Solutions AAT3123

The AAT3123/23A/24 is a low noise, constant frequency charge pump DC/DC converter that uses a dual mode load switch (1X) and fractional (1.5X) conversion to maximize efficiency for white LED applications. The device can be used to produce current levels up to 20mA to drive up to six LEDs from a 2.7V to 5.5V input.
Part No. AAT3123
Datasheet AAT3123 Download
Manufacturer
Skyworks Solutions
Description High Efficiency 1X/1.5X Fractional Charge Pump
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AAT3123 datasheet page 1 preview

APPLICATIONS

GENERAL DESCRIPTION

Outputs may be operated individually or paralleled for driving higher-current LEDs. A low external parts count (two 1μF flying capacitors and two small 1μF capacitors at VIN and OUT) make the AAT3123/23A/24 ideally suited for small battery-powered applications. Skyworks' Simple Serial Control (S2Cwire™) interface is used to enable, disable, and set the LED drive current with a 32-level logarithmic scale LED brightness control. The AAT3123/23A/24 has a thermal management system to protect the device in the event of a short-circuit condition at the output
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