Description
LR 246 is a step-up DC/DC converter specifically designed to drive white LED with a constant current. It can drive two,three,or four LEDS. It switches at 1.2MHz and use tiny external components. The output capacitor can be as small as 0.22uF,which can save space and cost versus alternative solutions. Feedback voltage is as low as 95mV. Built-in OverVoltage function.
OverVoltage Function
Fast 1.2MHz Switching Frequency
Requires Only 0.22uF Output Capacitor
Inherently Matched LED Current
High Efficiency: 85% Typical
2.5V to 10V VIN Ranges
Drives Up to Four series LEDs with a Li-lon cell
Uses Very Tiny Inductors
SOT-26 Package
