Patent ID: 7498690

Claim:
A multiple-output switching converter for generating a plurality of outputs, said converter comprising: a switch arrangement operative to couple and decouple a supply voltage to an inductor, and to couple and decouple a given output of a said plurality of outputs to the inductor; a reference current generator operative to generate a reference current having a magnitude proportionate to an aggregated error of the plurality of outputs, wherein an error represents a difference of the output from a corresponding reference level and the aggregated error is based on the errors of the plurality of outputs; a current sensing device operative to dynamically measure the current through the inductor; and 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 being based on an amount of time for the current through the inductor to be substantially equal to the reference current.