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CAT4137 Datasheet CMOS Boost Converter - White Led Driver

Manufacturer: Catalyst Semiconductor

Overview: CAT4137 CMOS Boost Converter - White LED Driver.

Datasheet Details

Part number CAT4137
Manufacturer Catalyst Semiconductor
File Size 328.03 KB
Description CMOS Boost Converter - White LED Driver
Datasheet CAT4137_CatalystSemiconductor.pdf

General Description

The CAT4137 is a DC/DC step-up converter that delivers a regulated output current.

Operation at a constant switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor.

The device drives a string of white LEDs connected in series and provides the regulated current to control the LEDs with inherent uniform brightness and matching.

Key Features

  • Drives up to 5 White LEDs from 3V Power Efficiency up to 87% Low Quiescent Ground Current 0.1mA Adjustable Output Current (up to 30mA) High Frequency 1MHz Operation “Zero” current shutdown mode Operates down to 2V (from two AA batteries) Soft start power-up Open LED low power mode Automatic shutdown at 1.9V (UVLO) Thermal shutdown protection Thin SOT23 5-Lead (1mm max height).

Similar Datasheet

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ON Semiconductor Logo CAT4137 CMOS Boost Converter - White LED Driver ON Semiconductor

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