The LC5720S product is the power IC for LED driver which incorporates a power MOSFET and a controll IC in a package. This product is a DC/DC converter which features are; wide input voltage range, 500kHz operating frequency, and Buck/ Boost/ Buck-Boost converter can be selected with external circuit configuration. LED string current can be set with the external resistor, and LED dimming can be controlled by the digital input signal. The rich set of protection features helps to realize low component counts, and high performance-to-cost power supply.