Patent ID: 8812879

Claim:
A voltage regulator module (VRM), comprising: a first interface configured to couple to a first substrate interface at a first voltage, wherein the first substrate interface is configured to couple to an integrated circuit substrate; a second interface configured to couple to a first processor interface at a second voltage, wherein the first processor interface is configured to couple to a processor, the processor being independent from the integrated circuit substrate; a first regulator module coupled to the first interface and to the second interface; a third interface configured to couple to a second substrate interface at a third voltage, wherein the second substrate interface is configured to couple to the integrated circuit substrate; a fourth interface configured to couple to a second processor interface at a fourth voltage; a second regulator module coupled to the third interface and to the fourth interface; the first regulator module configured to receive power at the first interface, to convert power to the second voltage, and to deliver power to the first processor interface at the second voltage; the second regulator module configured to receive power at the third interface, to convert power to the fourth voltage, and to deliver power to the second processor interface at the fourth voltage; and wherein the first regulator module is configured to receive a first control signal from the processor to control delivery of power to the first processor interface; wherein the second regulator module is configured to receive a second control signal from the processor to control delivery of power to the second processor interface independently of power delivered by the first regulator module; wherein each of the first and second regulator modules comprises a local sensing and feedback module to measure the first and second voltages at the respective first and second processor interfaces and adjust the power to provide the first and second voltages at the respective first and second processor interfaces; and wherein each of the first and second regulator modules comprises: a linear voltage regulator; a micro-regulator, wherein an input to the micro-regulator is coupled to a feedback loop of the linear voltage regulator; and a plurality of decoupling capacitors.