Datasheet4U Logo Datasheet4U.com

AL3157 - HIGH EFFICIENCY 1x/2x CHARGE PUMP LED DRIVER

General 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AL310 Advanced LCD Controller Averlogic Technologies
AL300 LCD Monitor Controller ETC
AL3201 SCR/ or Single Chip Reverb ETC
AL3201B DRE Digital Reverb Engine Wavefront
AL360 LED FLOOD LIGHT AREALUX

Other Datasheets by Diodes Incorporated

Part Number Description
AL3158 HIGH EFFICIENCY 1x/2x CHARGE PUMP
AL3159 HIGH EFFICIENCY 1x/2x CHARGE PUMP
AL3022 PWM BOOST CONTROLLER
AL3050 SMALL PANEL BACKLIGHT LED DRIVER
AL3065 FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER

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.

View original datasheet text
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 dim the LED current.