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