A system and method is provided for supplying power to multiple outputs in
a switching converter. One embodiment of the present invention includes a
multiple-output switching converter that may comprise a switch
arrangement operative to couple and decouple a supply voltage to an
inductor, and to couple and decouple a given output of a plurality of
outputs to the inductor. The multiple-output switching converter may also
comprise a reference current generator operative to generate a reference
current corresponding to an aggregated error of the plurality of outputs.
The multiple-output switching converter may also comprise a current
sensing device operative to dynamically measure the current through the
inductor. The multiple-output switching converter may further comprise a
controller that controls the switch arrangement to couple the supply
voltage to the inductor during an inductor charge period and decouple the
supply voltage from the inductor during an inductor discharge period. The
inductor charge period may be based on an amount of time for the current
through the inductor to be substantially equal to the reference current.