Power Delivery for High Performance Processor Packages - Part I

The continued reduction in processor core voltage, increases in current required, chip density and size place more pressure on effectively controlling the impedance of a CPU power distribution system. Voltage fluctuations across the die limit functionality and speed. The core-power path from the die to the voltage regulator is discussed herein. The path is separated into segments, and a one-dimensional circuit model is created to aid in the discussion.