The ISL6562 two three-phase current mode, PWM control ICs together with companion gate drivers, HIP6601A, HIP6602A, HIP6603A or HIP6604 and MOSFETs provide an advanced precision voltage regulation system microprocessor. Two-phase power conversion is a marked departure from earlier single-phase converter configurations to meet the increasing current demands of modern microprocessors. Multiphase converters, load sharing power and present results with fewer inputs and smaller, lower cost transistor output capacitors. These cuts, from the higher cumulative effective switching frequency, to the higher frequency ripple present due to the interleaving process of this topology. For example, a two-phase converter operating at 350kHz per phase will have a 700kHz ripple frequency. Additionally, this design results in a faster converter bandwidth response to load transients. Outstanding features of this controller IC include programmable VID codes ranging from 1.050V to 1.825V from the microprocessor with an accuracy of ±0.8%. These VID pins pull up current, eliminating the need for external pull-up resistors. Another feature of this controller IC is that the display circuit of PWRGD remains low until the core voltage is increased, and the programming voltage is at 18%. Overvoltage, 24% programmed core voltage, results in output going low above PWRGD indicating that the core is at the limit specified above. According to the voltage detection and the result the core voltage of PWRGD goes low if it falls below the 18% programmed level. The overcurrent protection folds back to an output voltage of 95mV, reducing power consumption in regulation. These functions provide monitoring and protection of microprocessors and power systems.