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AAT3123A - High Efficiency 1X/1.5X Fractional Charge Pump

Download the AAT3123A datasheet PDF. This datasheet also covers the AAT3123 variant, as both devices belong to the same high efficiency 1x/1.5x fractional charge pump family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

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Note: The manufacturer provides a single datasheet file (AAT3123-SkyworksSolutions.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DATA SHEET AAT3123/23A/24 High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications General Description 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. 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.