Exar Corporation

Vincent Wing Sing Tso

Shin Chung Chen

A charge pump circuit with a small loop filter capacitor is disclosed in the invention. This is accomplished by providing multiple currents which add to the desired current, I. A switching circuit switches one of the currents through the capacitor, while directing a combination of the multiple currents through the resistors. In this way, a smaller current is provided through the capacitor, allowing the capacitor to be much smaller in size.

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Milpitas, CA, United States of America

Vincent Wing Sing Tso