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Output Impedance Oriented Design for Voltage Regulator wvith High Repetitive Rate Transient

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2 Author(s)
Wu, Wenkai ; International Rectifier, 200 Circuit Drive, North Kingstown, RI 02852. Tel: 401-667-0238, Email: wwu2@irf.com ; Schuellein, G.

Modern microprocessors can rapidly shift between a sleep state and full load operation, placing a heavy requirement on the voltage regulator to stabilize its output voltage. High repetitive rate transient poses new challenges for voltage regulator design. The old "rule of thumb" approaches for capacitor selection may not be optimized in terms of physical size, performance, and cost. In this paper, output impedance oriented voltage regulator design methodology and procedure is presented to pursue the cost effective solution.

Published in:

Applied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE

Date of Conference:

Feb. 25 2007-March 1 2007