CPU Power Solution Meets Tough Intel® Requirements

Dual-Sourced VRM10 Parts Reduce Supply Chain Headaches

Simplifying Power Requirements at the Core
Today's new high-speed processors require higher performance from voltage regulators than ever before. Tighter voltage tolerances, faster transients, and improved operation over temperatures are just a few of the new design requirements. Solving such complex power delivery issues for desktops, workstations, and servers presents a challenge for VRM and motherboard designers.

To answer this challenge, Fairchild, a leader in power management solutions, has announced a VRD/VRM10-compliant power solution for high-performance microprocessors. The FAN5019, DC-to-DC PWM controller, and the FAN5009, a synchronous MOSFET driver, work together to form a highly efficient multiphase synchronous buck converter. This chipset meets Intel's rigorous VRD/VRM 10 power specifications-including true load line compliance, high efficiency and fast transient response.

VRM10 Raises the Bar
A Shocking Trend in Power Supplies
Recent tests by a major processor manufacturer indicate that the majority of off-the-shelf motherboards do not meet the voltage requirements specified by today's processors. That statistic is just for processors currently on the market.

This trend may get worse as the next generation of high-performance processors comes to market. Next-generation desktop processors will require supply currents in excess of 90A and tight output voltage tolerances.

One Solution, Two Sources
In today's harsh economic climate, if a supplier drops the ball, the entire business could be at risk. Selecting the most reliable power solution from a single supplier has always been an issue for motherboard designers. That is about to change. Fairchild, along with Analog Devices, have dual sourced both the controller and the driver—increasing the reliability of the supply chain. Fairchild's FAN5019 controller is identical to Analog Device's ADP3168 controller, and the FAN5009 driver is pin for pin compatible with the ADP3418 driver. Customers gain the advantage of no longer being dependent on a single source.