Combining a buck-boost topology and Silent Switcher technology brings very low EMI at the highest power-conversion efficiency. In many applications, voltages require upward and downward conversion.

This design example report discusses a 7.75 W TRIAC dimmable, high efficiency, power factor corrected, buck-boost LED driver using LYTSwitch-3 LYT3324D. It employs an input voltage ranging from 195 ...