Average power tracking mode power amplifier using dual bias voltage levels

Carried out an average power tracking mode power amplifier according to an embodiment of the present invention, apparatus includes a greater than the supply voltage from the power amplifier, the power supply voltage comprising a main amplifier stage is driven by a driver stage and a second driving voltage that is driven by the first drive voltage or too low to the first driving voltage for generating generates a first second driving voltage higher than the first driving voltage from the DC-DC voltage converter, and a power supply voltage applied to the driver stage to the second DC-DC voltage converter to be applied to the main amplifier stage It can be included.