CAT37 driver equivalent, cmos white led driver.
* Low Quiescent Ground Current (0.5 mA Typical)
* Power Efficiency Over 80%
* Compatible Pinout with LT1937
* Adjustable Output Current (up to 40 mA)
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A high voltage output stage allows up to 4 White LEDs to be driven in series. Series drive provides inherent current ma.
The CAT37 is a DC/DC step up converter that delivers a regulated output current. Operation at a constant switching frequency of 1.2 MHz allows the device to be used with very small value external inductor and ceramic capacitors.
The CAT37 is targeted.
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