The PWM switching regulator in the FAN5056MV85 is a synchronous-mode DC-DC controller that provides a high accuracy (± 0.8%) core voltage of 1.05V to 1.825V in 25mV steps at over 30A according to the voltage identification (VID) code supplied. Programmable Active Droop provides optimum transient response while minimizing the number of output capacitors. The FAN5056 senses the output current using the RDS(on) of the external MOSFETs thus eliminating current sense resistors saving board space and reducing system cost. The FAN5056MV85 also has three linear regulators, each capable of supplying over 2A for Vclock (2.5V), VNorthbridge (1.8V) and VAGP with Type Detect (selectable 1.5V/3.3V). Additional FAN5056MV85 features include over-voltage, under-voltage, over-current, PowerGood monitors, and thermal shutdown protection.