LM1937 converter equivalent, white led step-up converter.
* Inherently Matched LED Current
* High Efficiency : 84% Typical
* Drives Up to 4 LEDs from a 3.2V Supply
* Drives Up to 6 LEDs from a 5V Supply
* Pow.
The LM1937 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents result.
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