2025 OCP APAC Summit

■ This talk traces the evolution of 48V power delivery architectures for datacenter applications since commencing with Google's introduction of a tray-level, two-stage approach at OCP in 2016.
■ Subsequent advancements in topologies and ecosystems have paved the way for collaborative standardization efforts.
■ In 2024, Google, Microsoft, Meta jointly presented an updated 48V Onboard Power Specification and Qualification Framework, leading to the formation of an OCP workstream aimed at finalizing and implementing comprehensive 48V power module solutions and qualification protocols.
■ This talk will outline critical design principles to mitigate challenges associated with 48V two-stage power delivery, encompassing power failure mechanisms in complex 48V environments, explore the challenges of high power density and physical limitations, providing a detailed electrical specification and qualification requirements for data centers applications.