This book reveals to readers how to harness high-voltage power for everyday electronics. The authors detail the transformation of up to 400 V-from household outlets and electric vehicle batteries-into the low voltage required for devices like smart home systems and LED lights. This concise guide delves into the cutting-edge integration of DC-DC and AC-DC converters onto a single microchip using a high-voltage switched-capacitor approach. Explore expert insights on topology, circuit design, and layout techniques that are shaping the future of power management. Introduces the first-ever fully integrated DC-DC converter capable of handling up to 400 V; Enables a fully integrated mains-supplied AC-DC converter with power density of 5K x greater than existing solutions; Explores high-voltage fully integrated converters, with high-level analyses, practical circuits and layout techniques.