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Method and circuit for regulating the output voltage from a charge pump circuit, and memory device using same

  • US 6,549,474 B2
  • Filed: 10/26/2001
  • Issued: 04/15/2003
  • Est. Priority Date: 02/24/1999
  • Status: Expired due to Term
First Claim
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1. A method of controlling a charge pump circuit to generate a pumped voltage, the charge pump circuit including a plurality of voltage-boosting stages connected in series, the method comprising:

  • coupling the final voltage-boosting stage to a pumped output node;

    controlling the voltage-boosting stages to generate a pumped voltage on the pumped output node; and

    isolating the final voltage-boosting stage from the pumped output node responsive to the pumped voltage being greater than a desired value.

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