Verification of Power Management Unit (PMU)

Abstract

Nowadays electronics circuits are really an important part of the automotive products.The requirement of efficiency, security and safety in automotive field have increased to a great extent. So to achieve these requirements, electronics products are development with greater accuracy and efficiency. Vehicles, which used to be only mechanical in earlier days, now contains more than thousand electronic components most of which happen to be sensors and microcontrollers. A complete System-On-Chip for these products are developed which have many different IPs including both Analog and Digital IPs like memories, ADCs, DACs, different sensors, etc. and microcontroller based circuits to control all of these. All these circuits require a specific regulated voltage and current. There comes the requirement of Power Management Unit (PMU). PMU not only provide required power or current it is also continuously measures various sensors’ outputs and generates signals and accordingly sends it to the core. In this thesis report I have explained PMU architecture, different modes of PMU, PMU operation with different operating conditions the simulation results which show how PMU is verified using RTL simulation and SPICE level simulation.