3.2 Power supply The power supply of MC35i has to be a single voltage source in the range of VBATT+ = 3.3V...4.8V. It must be able to withstand a sufficient current in a transmission burst which typically rises to 2A (see Chapter 5.4.1). Beyond that, the power supply must be able to account for increased current consumption if the module is exposed to inappropriate conditions, for example antenna mismatch.