The PI3XXX is a family of high efficiency, wide input range DC-DC ZVS-Buck regulators integrating controller, power switches, and support components all within a high density, low profile System-in-Package (SiP). The PI3XXX requires only an external inductor and minimal capacitors to form a complete DC-DC switching mode buck regulator. The Zero Voltage Switching (ZVS) architecture enables high frequency operation while minimizing switching losses and maximizing efficiency. The high switching frequency operation reduces the size of the external filtering components, improves power density, and enables fast dynamic response to line and load transients