We propose a method to power specific areas of a large-scale integrated circuit, such as the core of a system-on-chip (SoC), at a voltage higher than VDD. The voltage drops with the current flowing through the power grid, resulting in I2R losses in the on-chip power circulation. This new concept for VLSI devices is based on the commercial distribution system of long-distance power transmission companies. Our design reduces the voltage to VDD levels with an integrated DC-DC converter located near the core, like how electrical systems rely on transformers. The efficiency of a distribution matrix is the percentage of total power taken from the power source and delivered to the loads (cores). We obtained the grid from data for a commercial DC/DC converter. This paper also discusses the need for highly efficient DC/DC converters that can be integrated on chip. As state-of-the-art semiconductors become smaller and smaller, silicon process variations continue to occur and affect the performance of the chip. One of the most critical steps is worst-case voltage variations that cause inductive fluctuations. Therefore, pinpointing hotspots across the power matrix network is critical to effectively utilize the right computing environment for design verification and appropriate strategies.