CAT4137 Datasheet (Catalyst Semiconductor) - CMOS Boost Converter

CAT4137, CMOS Boost Converter - White LED Driver

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

CAT4137 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