High Efficiency 10 LED Boost Converter

The CAT4238 is a DC/DC Step-up converter that delivers an accurate constant current ideal for driving LEDs Operation at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor R1. LED currents up to 40mA CAN be supported over a wide range of input supply voltages up to 5.5V, making the device ideal for battery-powered applications. The CAT4238 High-Voltage output stage is perfect for driving mid-size and large panel Displays containing up to ten white LEDs in series.
By Catalyst Semiconductor
CAT4238 's PackagesCAT4238 's pdf datasheet
CAT4238TD-GT3 SOT-23

CAT4238 Pinout, Pinouts
CAT4238 pinout,Pin out
This is one package pinout of CAT4238,If you need more pinouts please download CAT4238's pdf datasheet.

CAT4238 Application circuits
CAT4238 circuits
This is one application circuit of CAT4238,If you need more circuits,please download CAT4238's pdf datasheet.

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