CMOS White LED Driver

The CAT32 is a DC/DC step UP Converter that delivers a regulated output current. Operation at a constant switching frequency of 1.2MHz allows the device to be used with very small value external inductor and ceramic capacitors. The CAT32 is targeted to drive multiple white light- Emitting Diodes (LEDs) connected in series and provides the necessary regulated current to control the brightness and the color purity. An external resistor RSET controls the output current level. LED currents of up to 40mA CAN be supported over a wide range of input supply voltages from 2V to 7V, making the device ideal for battery-powered applications. A high voltage output stage allows up to 4 White LEDs to be driven in series. Series drive provides inherent current matching. By Catalyst Semiconductor
CAT32 's PackagesCAT32 's pdf datasheet

CAT32 Pinout, Pinouts
CAT32 pinout,Pin out
This is one package pinout of CAT32,If you need more pinouts please download CAT32's pdf datasheet.

CAT32 Application circuits
CAT32 circuits
This is one application circuit of CAT32,If you need more circuits,please download CAT32's pdf datasheet.

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CAT32 Pb-Free CAT32 Cross Reference CAT32 Schematic CAT32 Distributor
CAT32 Application Notes CAT32 RoHS CAT32 Circuits CAT32 footprint