New 15 V silicon trench MOSFET technology optimized for high frequency switching buck converters at low input voltages

Driven by emerging technologies such as AI, blockchain, 5G and virtual reality global servers, power consumption has increased by >250 % since 2017. In this context, a 48 V power distribution architecture has been proposed by leading tech companies. This also anticipates stricter environmental regulations and enables further capacity upscaling. Infineon's newly introduced 15 V trench power MOSFET plays a key role in converting the 48 V to a CPU/GPU supply voltage level thanks to significantly improved device characteristics. This paper presents benchmark results for the discrete MOSFET generations as well as for a fully integrated power stage operating up to 2 MHz.