ST1938 converter equivalent, dc-dc step-up converter.
z Current Source with Over Voltage Protection
z Fast 0.8MHz Switching Frequency z High Efficiency up to 87% z Drives up to Four LEDs From 3.2V
Supply z Drives up to Six L.
z Battery Power Equipment z Notebook Computers z PDA z Cellular Phone
PART MARKING
FEATURES
z Current Source with Over.
The ST1938 is a step-up DC/DC converter for white LED driver with over voltage protection. The device can driver one to four LEDs in series from a single cell Lithium Ion battery. Internal functions include current limiting; thermal shutdown; OVP and.
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