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CAT4137

Part Number	CAT4137
Manufacturer	ON Semiconductor
Description	CMOS Boost Converter - White LED Driver
Published	Oct 21, 2016
Detailed Description	CAT4137 CMOS Boost Converter White LED Driver Description The CAT4137 is a DC/DC step-up converter that delivers a regu...
Datasheet	CAT4137 PDF File

Overview

CAT4137 CMOS Boost Converter White LED Driver Description The CAT4137 is a DC/DC step-up converter that delivers a regulated output current.
Operation at a constant switching frequency of 1 MHz 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 regulated current to control the LEDs with inherent uniform brightness and matching.
An external resistor R1 sets the output current and allows up to 30 mA current to be supported over a wide range of input supply voltages from 2.
2 V to 5.
5 V, making the device ideal for battery-powered applications.
LED dimming can be done by using a DC...

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