The ISL6529A provides the power control and protection for two output voltages in high-performance graphics cards and other embedded processor applications. The dual-output controller drives two N-Channel MOSFETs in a synchronous rectified buck converter topology and one N-Channel MOSFET in a linear configuration. The ISL6529A provides both a regulated high current, low voltage supply and an independent, lower current supply integrated in an 14-lead SOIC package. The controller is ideal for graphic card applications where regulation of both the graphics processing unit (GPU) and memory supplies is required. The synchronous rectified buck converter incorporates simple, single feedback loop, voltage-mode control with fast transient response. Both the switching regulator and linear regulator provide a maximum static regulation tolerance of 1% over line, load, and temperature ranges for the ISL6529AC and 2% for the ISL6529C. Each output is useradjustable by means of external resistors. An integrated soft-start feature brings both supplies into regulation in a controlled manner. Each output is monitored via the FB pins for undervoltage events. If either output drops below 51.5% of the nominal output level, both converters are shutdown.