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Regulator Bypass Start-Up in an Integrated Circuit Device

  • US 20080273391A1
  • Filed: 04/14/2008
  • Published: 11/06/2008
  • Est. Priority Date: 05/04/2007
  • Status: Abandoned Application
First Claim
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1. An integrated circuit device having an internal voltage regulator and nonvolatile memory, said integrated circuit device comprising:

  • a voltage regulator;

    a power-on-reset (POR) circuit;

    nonvolatile memory; and

    low voltage core logic;

    wherein upon initial start-up of the integrated circuit device or a signal from the POR circuit, the voltage regulator regulates a low voltage output to the nonvolatile memory and the low voltage core logic, and upon subsequent reading of the nonvolatile memory, determines whether to remain active or go to a bypass mode in which the voltage regulator passes through a input power source voltage to its output without substantially changing the power source voltage.

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