The HIP6020 provides the power control and protection for four output voltages in high-performance, graphics intensive microprocessor and computer applications. The IC integrates two PWM controllers and two linear controllers, as well as the monitoring and protection functions into a 28-pin SOIC package. One PWM controller regulates the microprocessor core voltage with a synchronous-rectified buck converter. The second PWM controller supplies the computer system's AGP 1.5V or 3.3V bus power with a standard buck converter. The linear controllers regulate power for the 1.5V GTL bus and the 1.8V power for the North/South Bridge core voltage and/or cache memory circuits.