System and method for a burst-mode switching voltage regulator with good
stability and small output voltage ripple. A preferred embodiment
comprises a current sense circuit coupled to a power switch in the
burst-mode switching voltage regulator to sense a current flowing through
the power switch. The sensed current can then be used (in conjunction
with a feedback control signal that is based on the output voltage and is
generated at the output of the burst-mode switching generator) to control
the operation of the power switch to regulate the output voltage of the
burst-mode switching voltage regulator. This enables the use of an output
regulator with a small equivalent series resistance to minimize voltage
ripple while providing good operational stability and fast transient
response.