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AAT3194

Part Number	AAT3194
Manufacturer	AAT
Description	High Efficiency 1.5X Fractional Charge Pump
Published	Jul 23, 2007
Detailed Description	High Efficiency 1.5X Fractional Charge Pump For White LED Applications General Description The AAT3194 is a low noise, c...
Datasheet	AAT3194 PDF File

Overview

High Efficiency 1.
5X Fractional Charge Pump For White LED Applications General Description The AAT3194 is a low noise, constant frequency charge pump DC/DC converters that use fractional (1.
5X) conversion to increase efficiency in white LED applications.
The devices can be used to produce current levels up to 20mA for each output from a 2.
7V to 5.
5V input.
A low external parts count (two 1µF flying capacitors and two small bypass capacitors at IN and OUT) makes these devices ideally suited for small, battery-powered applications.
AnalogicTech’s Simple Serial Control™ (S2Cwire™) interface is used to enable, disable, and set the LED drive current for 32-level logarithmic scale LED brightness c...

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