CAT4238 Datasheet (Catalyst Semiconductor) - High Efficiency 10 Led Boost Converter

CAT4238, High Efficiency 10 Led Boost Converter

The CAT4238 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs.

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

LEDs connected in series are driven with a regulated cu

CAT4238 Features

* Drives High Voltage LED strings (38V) Up to 87% Efficiency Low Quiescent Ground Current 0.6mA Adjustable Output Current 1MHz Fixed Frequency Low noise Operation Soft start “in-rush” current