LR1937S LRC White LED Step-Up Converter

Description

LR19 37S 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 273mV

OverVoltage, UVLO 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

TSOP-6

Manufacturer Part Number: LR1937S

Manufacturer: LRC

Datasheet: LR1937S.pdf