Using an IRFZ44N, I made a simple LED driver and used an Arduino Uno directly. Remember the Arduino pins go up to 5V and I used the fade example that generates PWM out of the box. The frequency of ...

This easy-to-use synchronous Buck LED driver with high-side current sense ... Using constant-on-time (COT) control, the AL8891Q achieves simple control-loop compensation and cycle-by-cycle current ...