PSA 48V direct conversion DC-DC modules – or ‘power stamps’ – primarily target high-performance computers and servers being used in large data centers, many of which follow the principles of the Open Compute Project (OCP).
The new reference design board makes it easier for design engineers to evaluate the power stamp concept and products from member vendors. It can help to accelerate project development for new server designs and other equipment using ASIC devices in a 48 V source environment. The reference design features connections with e-loads and provides sockets to host load modules to test dynamic transient response and enable developers to simulate realistic loading conditions. The ASIC reference design board joins the first reference design board from the Power Stamp Alliance, which was designed for the Intel® VR13 (Intel® code named Skylake) processor architecture. The Power Stamp Alliance has a roadmap for future reference design boards, including Intel® VR13-HC (Intel® code named Ice Lake) and other processor architectures used in high performance computing.
By creating and sharing a specification for a standard product footprint and functions, the Power Stamp Alliance has created a multi-vendor ecosystem to assure practical levels of alternate source capability to server and storage system manufacturers, while encouraging a competitive supply chain through differentiation in topology, circuitry, and performance from multiple, independent manufacturers. Formally launched at the Open Compute Project (OCP) Summit in 2018 with the publication of specifications, drawings and pin-out descriptions for main and satellite power stamps, the Alliance has since also published a new Orcad Library and Allegro Footprint Package (Macro) to its website to enable designers to embed Power Stamps into their own schematic, along with the linked Allegro reference footprint for proper layout. Most recently, the Alliance announced the industry’s first graphical user interface (GUI) that developers can use with products from any member company. The Power Stamp
PSA reference design boards, power stamps and the GUI are available from PSA member representatives, who can be contacted via the Power Stamp Alliance website
The Power Stamp Alliance has been formed to define a standard product footprint and functions that provide a multiple sourced, standard modular board-mounted solution for power conversion for 48Vin to low-voltage, high-current DC-DC applications. These 48V single-stage, direct-conversion DC-DC modules – or ‘power stamps’ – primarily target devices being used in large data centers (e.g. high-performance computers, ASICs, and FPGAs), many of which follow the principles of the Open Compute Project (OCP). The Founding Members of the Power Stamp Alliance are Artesyn Embedded Technologies, Bel Power Solutions, Flex, and STMicroelectronics.
Power Stamp Alliance and the Power Stamp Alliance logo are trademarks and service marks of the Power Stamp Alliance. Intel® is a trademark of Intel Corporation in the United States and/or other countries. The code names Skylake and Ice Lake are Intel terminology referencing processor architectures and platforms owned by Intel. No endorsement by Intel is expressed or implied. All other names and logos referred to are trade names, trademarks, or registered trademarks of their respective owners. © 2019 Power Stamp Alliance. All rights reserved.
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