ST1937 - DC-DC Step-Up Converter
ST1937 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.
Internal functions include current limiting; thermal shutdown and soft-start to prevent damage operate status.
ST1937 DC/DC convert
ST1937 Features
* z Fast 1.2MHz Switching Frequency z High Efficiency up to 85% z Drives up to Four LEDs From 3.2V Supply z Low Quiescent Current z Internal Over Temperature and Current Limiting Shutdown Function z Internal Soft-Star
