Patent ID: 8519788

Claim:
A power management system for a linear radio frequency power amplifier comprising: a charge pump including a first flying capacitor, a second flying capacitor, a plurality of switches operably coupled to form a charge pump parallel amplifier power supply output, wherein the charge pump is configured to selectively generate a selected output voltage level of a plurality of output voltage levels, derived from a first supply voltage, on the charge pump parallel amplifier power supply output of the charge pump based upon a selected charge pump operational mode of a plurality of charge pump operational modes; a switch mode power supply converter including a plurality of switching operational modes configured to generate a plurality of switching voltage levels on a switching voltage output, wherein the switching voltage output is coupled to a capacitor via a power inductor to form a linear radio frequency power amplifier supply output configured to power the linear radio frequency power amplifier; and a parallel amplifier including a parallel amplifier output in communication with the linear radio frequency power amplifier supply output and a parallel amplifier supply input in communication with the charge pump parallel amplifier power supply output, wherein at least a portion of the parallel amplifier is configured to be powered from the charge pump parallel amplifier power supply output.