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CAT4238

Part Number	CAT4238
Manufacturer	Catalyst Semiconductor
Description	High Efficiency 10 Led Boost Converter
Published	Nov 25, 2006
Detailed Description	www.DataSheet4U.com CAT4238 High Efficiency 10 LED Boost Converter FEATURES Drives High Voltage L...
Datasheet	CAT4238 PDF File

Overview

www.
DataSheet4U.
com CAT4238 High Efficiency 10 LED Boost Converter 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 limiting Shutdown current less than 1μA Open LED Overvoltage Protection Automatic Shutdown at 1.
9V (UVLO) Thermal overload protection Thin SOT23 5-Lead (1mm max height) DESCRIPTION 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 capacitor...

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