IR3504MTRPBF

The IR3504 Control IC combined with an xPHASE3 Phase IC provides a full featured and flexible way to implement a complete AMD SVID power solution. It provides outputs for both the VDD core and VDDNB auxiliary planes required by the CPU. The IR3504 provides overall system control and interfaces with any number of Phase ICs each driving and monitoring a single phase. The xPHASE3 architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches.

• 2 converter outputs for the AMD processor VDD core and VDDNB auxiliary planes
• AMD Serial VID interface independently programs both output voltages and operation
• Both Converter Outputs boot to 2-bit “Boot” VID codes which are read and stored from the SVC & SVD parallel inputs upon the assertion of the Enable input
• PWROK input signal activates SVID after successful boot start-up
• Both Converter Outputs can be independently turned on and off through SVID commands
• Deassertion of PWROK prior to Enable causes the converter output to transition to the stored PrePWROK VID codes
• Connecting the PWROK input to VCCL disables SVID and implements VFIX mode with both output voltages programmed via SVC & SVD parallel inputs per the 2 bit VFIX VID codes
• PG monitors output voltage, PG will deassert if either output voltage out of spec
• 0.5% overall system set point accuracy
• Programmable Dynamic VID Slew Rates
• Progr