SP1937 Overview
Description
The SP1937 is a step-up DC/DC converter for white LED driver with constant current. The device can driver one to four LEDs in series from a single cell Lithium Ion battery.
Key Features
- Fast 1.2MHz Switching Frequency
- High Efficiency up to 85%
- Drives up to seven LEDs From 2.5V Supply
- Low Quiescent Current
- Disconnects LEDs in Shutdown Mode
