GM1937 converter equivalent, white led step-up converter.
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.
Although small size and high efficiency are major concerns, the inductor should have low core losses at 1.2MHz and low .
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 result.
Image gallery
TAGS
Download (Size : 157.07KB)