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CAT3603 - 3-Channel LED Driver

General Description

The CAT3603 is a charge pump LED driver operating in either 1x (LDO) mode or 1.5x fractional mode regulating current through each of the 3 LED pins.

Operation at a constant switching frequency of 1MHz allows the use of very small value ceramic capacitors.

Key Features

  • Drives up to 3 LEDs Current setting resistor Compatible with supply voltage of 3V to 5.5V Power efficiency up to 91% Output Current up to 30mA per LED Fractional pump 1x/1.5x Low noise input ripple Fixed High Frequency Operation 1MHz “Zero” Current Shutdown Mode Soft start and current limiting Short circuit protection 12-lead TDFN 3mm x 3mm package.

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Datasheet Details

Part number CAT3603
Manufacturer Catalyst Semiconductor
File Size 544.31 KB
Description 3-Channel LED Driver
Datasheet download datasheet CAT3603 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com CAT3603 3-Channel LED Driver in 3x3mm Package FEATURES „ „ „ „ „ „ „ „ „ „ „ „ Drives up to 3 LEDs Current setting resistor Compatible with supply voltage of 3V to 5.5V Power efficiency up to 91% Output Current up to 30mA per LED Fractional pump 1x/1.5x Low noise input ripple Fixed High Frequency Operation 1MHz “Zero” Current Shutdown Mode Soft start and current limiting Short circuit protection 12-lead TDFN 3mm x 3mm package DESCRIPTION The CAT3603 is a charge pump LED driver operating in either 1x (LDO) mode or 1.5x fractional mode regulating current through each of the 3 LED pins. Operation at a constant switching frequency of 1MHz allows the use of very small value ceramic capacitors.