GM1937 Datasheet (Gamma) - WHITE LED STEP-UP CONVERTER

GM1937, WHITE LED STEP-UP CONVERTER

The GM1937 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 resulting in uniform brightness and eliminating the need

GM1937 Features

* High Efficiency: 84% Typical 36V internal Switch Fast 1.2MHz Switching Frequency Drives Up to three LEDs from a 2.8V Supply Drives Up to six LEDs from a 5V Supply External Matched LED Current Uses Tiny 1mm height inductor Requires Only 0.22 ¡@ F Output Capacitor Low profile TSOT pa