Split VCC and common VCC power management architecture for envelope tracking

Circuitry comprising:

• transmitter control circuitry adapted to receive a first envelope power supply control signal and a second envelope power supply control signal;
• and:
• an envelope tracking power supply coupled to the transmitter control circuitry and adapted to:
• operate in one of a plurality of operating modes;
• during a first operating mode of the plurality of operating modes:
• provide a first envelope power supply signal to a driver stage based on the first envelope power supply control signal;
• and
• provide a second envelope power supply signal to a final stage, which is coupled to the driver stage, based on the first envelope power supply control signal;
• and
• during a second operating mode of the plurality of operating modes:
• provide the first envelope power supply signal to the driver stage based on the first envelope power supply control signal;
• and
• provide the second envelope power supply signal to the final stage based on the second envelope power supply control signal.