Modern vehicles demand highly efficient and reliable power distribution systems to support an increasing number of electronic functions. The Power Distribution Unit (PDU) is central to this evolution, enabling optimized energy management, enhanced safety, and improved overall vehicle performance. ST’s latest architectures, using the Power Distribution Unit and combining STi²Fuse smart switches with Stellar 32-bit automotive MCUs, enable safe and flexible power networks. These networks reduce wire-harness weight, length, and cost while improving electric vehicle performance and driving range. As automotive design shifts towards electrification and digitalization, the traditional 12V powernet is evolving into more robust 48V systems. The PDU is suitable for both legacy 12V systems and new systems based on the 48V voltage level.