Design of a High Efficiency Buck Converter

Power management integrated circuit in audio and low power applications

“…Smaller devices' size allows for smaller chip area and lower switching loss due to smaller parasitic capacitance. The sizing W/L of the output transistors MPOW1 and MPOW2 depends on the tradeoff between conduction loss and switching loss, which are 2 major power loss components in the power stage of the buck converter [51]. The equations for switching loss and conduction loss can be written as follows.…”