3-Phase Synchronous PWM Controller IC Provides an Integrated Solution for Intel VRM 9.0 Design Guidelines

The fundamental reason for the rapid change and growth in information technology power requirements is the increase in volume of data processed, stored, transmitted, and displayed. As a result, power requirements have grown very rapidly. To control the increase in power dissipation, operating voltages have been reduced. Power scales as the square of the voltage: cut the voltage in half, and the power dissipation is reduced to one fourth. As circuit output voltages approach the one-volt mark, operating currents are increasing exponentially. Today, feeding this much “ultraclean” current at these low voltages with tremendous transient response capability is the key technology driver of power management for IT.