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CAT37

Part Number	CAT37
Manufacturer	Catalyst Semiconductor
Description	CMOS White LED Driver Boost Converter
Published	Mar 23, 2005
Detailed Description	CAT37 CMOS White LED Driver Boost Converter FEATURES s Low quiescent ground current (0.5mA typical) s Power efficiency o...
Datasheet	CAT37 PDF File

Overview

CAT37 CMOS White LED Driver Boost Converter FEATURES s Low quiescent ground current (0.
5mA typical) s Power efficiency over 80% s Compatible pinout with LT1937 s Adjustable output current (up to 40mA) s High frequency 1.
2MHz operation s Input voltage operation down to 2.
5V s Low resistance (0.
5Ω) power switch s Drives up to 4 White LEDs in series s Shutdown current less than 1µA H GEN FR ALO EE LE A D F R E ETM s Load fault protection against open-circuits s Low value external components s Low profile 5-lead SOT23 (1mm max) and TDFN (0.
8mm) package APPLICATIONS s Color LCD and keypad backlighting s Cellular phones s Handheld terminals s Digital cameras s PDAs/Games s Portable MP3 pla...

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