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Apparatus and method for DC-to-DC power conversion

  • US 6,661,210 B2
  • Filed: 01/23/2002
  • Issued: 12/09/2003
  • Est. Priority Date: 01/23/2002
  • Status: Active Grant
First Claim
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1. A DC-to-DC converter for supplying a load with an output signal having a regulated voltage, the converter comprising:

  • a linear regulator circuit to generate a first signal having higher frequency transient current components;

    a switching regulator circuit in parallel with the linear regulator circuit to generate a second signal having lower frequency and DC current components;

    a summing node to combine the first and second signals to form the output signal; and

    wherein the linear regulator circuit supplies a majority of transient current required by the load, and the switching regulator circuit provides a majority of steady-state current required by the load.

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