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Multiple phase switching regulators with stage shedding

  • US 6,674,274 B2
  • Filed: 02/08/2001
  • Issued: 01/06/2004
  • Est. Priority Date: 02/08/2001
  • Status: Expired due to Term
First Claim
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1. A multiple phase switching regulator, comprising:

  • a plurality of single phase switching regulators coupled to an output; and

    a first comparator coupled to a feedback loop circuit that prevents a first one of the single phase switching regulators from providing output current to a load coupled to the output after the load current drops below a threshold of the first comparator, wherein at least a second one of the single phase switching regulators comprises;

    a first gain control circuit coupled to the first comparator that causes the output current of the second single phase switching regulator to increase after the load current drops below the threshold of the first comparator.

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