Integrated 60V vertical DMOS on 0.18um platform for Power over Ethernet IC

Power Management Integrated Circuits is one of the fastest growing markets in the semiconductor industry, with increasing demand for efficient electronic devices and dense integration schemes. Power over Ethernet designs are some of the most challenging, incorporating multiple channels of large High Voltage FET drivers, along with dense logic cores and high precision analog. The extreme amount of silicon area consumed by the HV drivers and the need for efficient low resistance switching has driven the need to go to area efficient vertical topologies. While vertical structures are widely implemented in discrete device manufacturing, their integration in Power Management Integrated Circuits introduces many challenges. We present a 60V platform based on a 0.18um CMOS technology, integrated with a best in class 60V vertical DMOS, providing a high performance and cost effective platform for PoE designs.