The SC3611 is a step-up converter designed for driving up to 9 series white LEDs from a single cell Lithium lon battery. The SC3611 uses current mode, fixed frequency architecture to regulate an LED current, which is measured through an external current sense resistor. Its low 200mV feedback voltage reduces power loss and improves eficiency. The SC3611 includes undervoltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.

Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Internal soft start function can reduce the inrush package type provide the best solution for PCBcurrent. Tiny space saving and total BOM cost.

升压LED背光驱动IC

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