The growth of IoT is pushing infrastructure equipment to the limit in terms of processing power and bandwidth. For power designers, the main challenge is how to efficiently power and cool this equipment, while ensuring minimal electricity usage. Designers also must balance board power footprints with thermals when using today’s advanced processors, ASICs and FPGAs. This white paper examines the evolution of the multiphase converter architecture from analog to digital implementations, and compares the various control mode schemes.