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Redundant voltage regulator for memory devices

  • US 10,468,088 B2
  • Filed: 12/15/2017
  • Issued: 11/05/2019
  • Est. Priority Date: 12/15/2017
  • Status: Active Grant
First Claim
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1. A system comprising:

  • at least one memory module including a plurality of dynamic random access memory devices mounted on the module, and a first voltage regulator mounted on the module, the first voltage regulator configured to supply at least one of a plurality of voltage levels to a plurality of voltage domains for supplying voltage to the plurality of memory devices, anda system board including a second voltage regulator not mounted on the memory module configured to supply voltage to the first voltage regulator, and a third redundant voltage regulator, the third redundant voltage regulator configured to supply at least one of the plurality of voltage levels to the plurality of voltage domains on the memory module, wherein the at least one of the plurality of voltage levels supplied by the third redundant voltage regulator is the same voltage level as the at least one voltage level supplied by the first voltage regulator,wherein the third voltage regulator is configured to be always actively on and supplying power to at least one of the voltage domains on the memory module along with the first voltage regulator.

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