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AL3157

Part Number	AL3157
Manufacturer	Diodes
Description	HIGH EFFICIENCY 1x/2x CHARGE PUMP LED DRIVER
Published	Jan 18, 2017
Detailed Description	NEW PRODUCT AL3157 HIGH EFFICIENCY 1x/2x CHARGE PUMP LED DRIVER FOR SMALL SCREEN BACKLIGHTING AND FLASHLIGHT Descripti...
Datasheet	AL3157 PDF File

Overview

NEW PRODUCT AL3157 HIGH EFFICIENCY 1x/2x CHARGE PUMP LED DRIVER FOR SMALL SCREEN BACKLIGHTING AND FLASHLIGHT Description The AL3157 is a low noise, constant frequency charge pump DC/DC converter that uses a Dual mode load switch (1x), and doubling (2x) conversion for driving white LEDs.
Low external part count (one 1µF flying capacitor and two 2.
2µF capacitors at VIN and VOUT) make this part ideally suited for small, battery-powered applications The AL3157 drives 3 channels at up to 30mA for small screen backlighting and an additional channel up to 210mA for LED Flash or LED Flashlight – All from a 2.
7V to 5.
5V input.
The AL3157 uses two control inputs (EN1/2) to enable/disable it and PWM ...

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