In a packaged integrated circuit, the package inductance limits the rate at which
off-chip current may be varied in response to a change in on-chip current demand
of the integrated circuit. The present invention provides an on-chip voltage regulator
circuit for regulating multi-cycle voltage fluctuations of an integrated circuit
associated with changes in current demand of the integrated circuit. The voltage
regulator sources current to prevent an undervoltage conditions and sinks current
to prevent an overvoltage condition.
