An amplifier module includes an integrated circuit device including a first amplifier circuit electrically connected to a first input terminal. The amplifier circuit includes a number of x first amplifier branches electrically connected to the first input terminal. The amplifier module also includes a number y of first output terminals each assigned to a respective TX frequency band, a first switching unit that electrically connects one or more of the first amplifier branches to one of the first output terminals, and a multilayer substrate, on top of which the integrated circuit device and the switching unit are mounted. The substrate includes integrated passive matching elements that are part of matching circuits where x≧1 and y≧2. Each of the first amplifier branches is adapted to deliver a different power level at its output and is matched to a load at the first output terminals by one of the matching circuits.