The TI TPS92510 is an integrated MOSFET high-current buck converter. It accepts input voltage from 3.5 V to 60 V and it is able to provide continuous output current up to 1.5 A. Simple enough to construct using passive components only, the TPS92510 has a PWM dimming input which makes digital dimming control easy. TPS92510 also provides a thermal fold-back capability by converting the TSENSE input voltage level into a PWM dimming signal internally in order to protect the LEDs from being over-heated.