The PI1004 IC combines a Voltage Identification Digital Input (VID) controlled reference with control and supervisory functions to accurately set the regulator output voltage at the point of load, for isolated and CPU DC-DC converters in desktop and server applications. The PI1004 feature set is intended to be used in conjunction with a variety of power architectures, including Factorized Power Architecture (FPA), to provide CPU power in accordance with Intel VR10.X requirements. The feature set includes a precision error amplifier for remote differential sensing of the output voltage, a six bit programmable VID reference voltage output with 12.5 mV resolution, and flexible adaptive voltage positioning. The regulation voltage can also be shifted below the VID range with a programmable offset current. The controller includes an over-voltage indicator output, an open collector power-good output, under-voltage lockout and an externally programmable soft start.