Apparatuses and methods for adjusting a power capability of a system is described. In an example, a system can include an antenna array and a beamformer connected to the antenna array. The beamformer can include a communication channel. The system can further include a first power converter that can be configured to convert a supply voltage to a first regulated voltage. The first power converter can apply the first regulated voltage to the beamformer. The system can further include a second power converter that can be configured to convert the supply voltage to a second regulated voltage different from the first regulated voltage. The second power converter can apply the second regulated voltage to a power amplifier in the communication channel to adjust a maximum power capability of the power amplifier.