Voltage Regulation Using Local Feedback

A method, comprising:

• coupling a package power supply node to a first local supply node and a second local supply node, wherein a first processor core is coupled to the first local supply node, and wherein a second processor core is coupled to second local supply node;
• monitoring respective power consumptions of the first processor core and the second processor core;
• coupling, based on the respective power consumptions, the first local supply node to a feedback node for a first time period;
• coupling, based on the respective power consumptions, the second local supply node to the feedback node for a second time period different than the first time period;
• and
• generating a particular voltage level on the package power supply node using a voltage level of the feedback node.

An apparatus, comprising:

• a substrate including a plurality of traces;
• a first package coupled to the substrate, wherein the first package includes a first integrated circuit including a voltage regulator circuit configured to generate a particular voltage level on a power supply node using a voltage level of a feedback node, wherein the power supply node is coupled to a particular trace of the plurality of traces, and the feedback node is coupled to a different trace of the plurality of traces;
• and
• a second package coupled to the substrate, wherein the second package includes a second integrated circuit that includes a plurality of processor cores, wherein the second integrated circuit is configured to:
• couple the particular trace to a plurality of local supply nodes, wherein a given one of the plurality of local supply nodes is coupled to the a given one of the plurality of processor cores;
• couple a first local supply node of the plurality of local supply nodes to the different trace for a first time period;
• and
• couple a second local supply node of the plurality of local supply nodes to the different trace for a second time period different than the first time period.