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AssigneeAdvanced Micro Devices, Inc.
InventorsWei Huang, Yasuko Eckert, Xudong An, Muhammad Shoaib Bin Altaf, Jieming Yin
Estimating the term…
The described embodiments include an apparatus that controls voltages for an integrated circuit chip having a set of circuits. The apparatus includes a switching voltage regulator separate from the integrated circuit chip and two or more low dropout (LDO) regulators fabricated on the integrated circuit chip. The switching voltage regulator provides an output voltage that is received as an input voltage by each of the two or more LDO regulators, and each of the two or more LDO regulators provides a local output voltage, each local output voltage received as a local input voltage by a different subset of the circuits in the set of circuits. During operation, a controller sets an operating point for each of the subsets of circuits based on a combined power efficiency for the subsets of the circuits and the LDO regulators, each operating point including a corresponding frequency and voltage.
An apparatus that controls voltages, comprising:
A method for controlling voltages in an apparatus having an integrated circuit chip including a set of circuits, a switching voltage regulator separate from the integrated circuit chip, and a plurality of low dropout (LDO) regulators fabricated on the integrated circuit chip, the switching voltage regulator providing an output voltage that is received as an input voltage by each of the plurality of LDO regulators, and each LDO regulator of the plurality of LDO regulators providing a local output voltage that is received as a local input voltage by a different subset of circuits in the set of circuits, the method comprising:
Dependencies are inferred from the claim text.