A voltage regulator with a variable compensation capacitor is capable of
driving a large variable dynamic current load. The regulator includes an
error amplifier and an output stage amplifier. The variable compensation
capacitor is disposed between the output terminal of the error amplifier
and the output terminal of the output stage amplifier. In one embodiment,
a NMOS transistor is disposed between the output terminal of the output
stage amplifier and the variable compensation capacitor. The variable
compensation capacitor may be, e.g., a PMOS transistor with the source
and drain tied together. In one embodiment, a plurality of regulators is
included on chip, e.g., such as a programmable device, where the output
terminals of each regulator is tied together and used to drive the same
load.