Patent ID: 8797103

Claim:
A mobile device comprising: a phone board; a multi-chip module disposed on the phone board, the multi-chip module including a plurality of power amplifiers formed on one or more power amplifier dies, the plurality of power amplifiers including at least three power amplifiers, each power amplifier having a supply input for receiving a power supply, the supply inputs of the plurality of power amplifiers electrically connected to one another by a first power supply network of the multi-chip module such that interconnect associated with each of the supply inputs of the power amplifiers meets at a first node, each of the plurality of power amplifiers including a first stage and a second stage, the first stage configured to drive the second stage, each of the plurality of power amplifiers including a first stage supply input, the first stage supply inputs electrically connected to a second power supply network such that interconnect associated with each of the first stage supply inputs of the power amplifiers meets at a second node; and an envelope tracking module disposed on the phone board, the envelope tracking module electrically connected to the first power supply network and configured to control a voltage level of the first power supply network, the envelope tracking module configured to electrically power the second stage of each of the plurality of power amplifiers.