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AAT3132A

Part Number	AAT3132A
Manufacturer	AAT
Description	High Efficiency 1.5X Fractional Charge Pump
Published	Apr 30, 2007
Detailed Description	AAT3132/32A High Efficiency 1.5X Fractional Charge Pump for White LED Applications General Description The AAT3132/32A i...
Datasheet	AAT3132A PDF File

Overview

AAT3132/32A High Efficiency 1.
5X Fractional Charge Pump for White LED Applications General Description The AAT3132/32A is a low noise, constant frequency charge pump DC/DC converter that uses fractional (1.
5X) conversion to maximize efficiency for white LED applications.
The device can be used to produce current levels up to 20mA in three of its outputs and up to 25 or 30mA in one of its outputs to drive 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) makes the AAT3132/32A ideally suited for small battery-powered applications.
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