Patent ID: 9541935
Date: 2017-01-10
CPC Classifications: G05F

Claim:
1. A method for regulating a voltage, comprising: obtaining information that specifies operating conditions of a voltage regulator circuit having a passgate device, which regulates a supply voltage of a load circuit; predicting a passgate device width which is sufficient to supply a maximum load current of the load circuit that is demandable by the load circuit under the operating conditions specified by the obtained information; and setting an active width of the passgate device according to the predicted passgate device width, wherein predicting the passgate device width comprises using the obtained information to access information from at least one look-up table and predicting the passgate device width based on the accessed information; wherein the obtained information comprises an operating frequency of the load circuit, an input voltage of the voltage regulator circuit, and a regulated output voltage of the voltage regulator circuit; and wherein the accessed information comprises: the maximum load current of the load circuit as a function of the operating frequency of the load circuit and the regulated output voltage of the voltage regulator circuit; and the passgate device width as a function of the input voltage of the voltage regulator circuit and the regulated output voltage of the voltage regulator circuit.