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Power Stamp Alliance members are all experts in power conversion for data centers, HPC and supercomputing.

The Founder Members are (in alphabetical order) Advanced Energy, Bel Power Solutions, Flex Power Modules and ST Microelectronics.

Artesyn Embedded Power is an Advanced Energy product brand and is well recognized as a global leader in the design and manufacture of highly reliable power conversion solutions for a wide range of industries including communications, computing, server storage, healthcare and industrial.

Customers trust Artesyn to help them accelerate time-to-market and reduce risk with cost-effective power conversion solutions.

Embracing the well-known Astec brand, Artesyn’s broad portfolio of standard and custom AC-DC power supplies, power shelves and PDUs is extensively used in data centers worldwide. The brand is widely acknowledged as an industry leader in DC-DC converters for distributed power applications.

Bel Power Solutions, a Bel group, offers world-class AC-DC and DC-DC power conversion products, value-add solutions, complete box-build solutions and contract manufacturing services. Applications of our power conversion devices range from board-mount power to system-level architectures for servers, storage, networking, industrial and telecommunications industries.

Bel is headquartered in Jersey City, New Jersey. Founded in 1949, Bel designs, manufactures and markets products that power, protect and connect electronic circuits.

Flex Power Modules operates in the power segment delivering power supply products to a wide range of markets, with some of the world's biggest brands as customers. Flex is the Sketch-to-Scale solutions provider that designs and builds Intelligent Products for a Connected World. With approximately 200,000 professionals across 30 countries, Flex provides innovative design, engineering, manufacturing, real-time supply chain insight and logistics services to companies of all sizes in various industries and end-markets

STMicroelectronics is a global semiconductor leader delivering intelligent and energy efficient products solution that power the electronics at the heart of everyday life.

ST's products are found everywhere today, and together with our customers, we are giving a positive contribution to people's lives, today and into the future.

ST power management IC technology and architecture are driving the PSA products enabling high efficiency, high density and energy proportional 48V direct power conversion in the next generation data center.

Offering one of the industry's broadest product portfolios, ST serves customers across the spectrum of electronics applications with innovative semiconductor solutions for Smart Driving and the Internet of Things.

By getting more from technology to get more from life, ST stands for life.augmented.

Associate Members

Associate members of the Power Stamp Alliance contribute to relevant solutions but typically remain agnostic in terms of DC-DC modules.

LoadSlammer is a designer and manufacturer of transient load testing devices that brings power stamp users the option for a consistent, standardized testing methodology.

Design engineers will be able to use a common, consistent, and repeatable load to significantly reduce validation and integration time, speeding their end-product to market and reducing risk in the design process. LoadSlammer estimates up to 30% saving in development time depending on the user’s specific configuration.

Using LoadSlammer technology enables electronics design engineers to thoroughly evaluate power stamp implementations on their circuit boards quickly and independently of any power solution or semiconductor vendor.

The compact and configurable LoadSlammer Test Tool suite allows designers of DC-DC power solutions, power IC vendors, and ASIC/CPU manufacturers to collaborate, with measurable test data in an interchangeable format.

Learn more in our Applications section and on the LoadSlammer website.

Rules of engagement

The full rules of engagement are available to active Power Stamp Alliance members. This is a summary of the key tenets of the alliance.

  • Members will cooperate on mechanical details of new platforms during the concept stage. This includes dimensions, footprint, pin locations and function. This information will be consolidated into the Power Stamp Alliance standards.
  • Members will share feature set functionality information and other information to ensure that functionality integral to the overall design will be compatible (e.g. fault protection, pins description, features, etc.).
  • Members will share non-confidential customer board interface requirements, those affecting pin compatibility, in the initial design phase.
  • Regarding a given standard (i.e. the power stamp module), all members will have to comply with the same external connections among modules and the same external bill of material regardless of the custom implementation of the given module. Output filter solution (i.e. output filter decoupling capacitors) can be an exception to the BOM compatibility.
  • Members are not obligated to share technical information they consider proprietary unless agreed to under a separate arrangement. This includes intellectual property, circuits and layout details. In addition, to insure competitiveness between Power Stamp Alliance members, performance information (although often publicly available) such as efficiency, thermal performances, power levels, power density, EMI and transient response, will not be considered public.
  • Members will not share information relating to price, costs, production capacity, market share, key suppliers or market or competitive strategy.
  • Products are permitted to carry the Power Stamp Alliance brand (space permitting) only if there are at least two Power Stamp Alliance members producing products meeting the same PSA standards.
  • Pin assignment, connections and/or footprint modifications of an existing and agreed standard will lead either to the definition of an additional new standard or to the modification of the existing standard only if agreed by all the members.
  • Members will use the Power Stamp Alliance standard for customer interface form, fit and function for their standard products that carry the Power Stamp Alliance brand. This to encourage, but not require, the ability to source from multiple suppliers across a standard platform, rather than as a unique or optional feature.

How to join

Membership to the Power Stamp Alliance will be opened to those businesses that are considered by existing members to add value towards the purpose of the alliance.

If you are interested in joining the Power Stamp Alliance, please contact us.

Applicants for admission will be considered at each alliance meeting and voted on by the members.

Approval for admission will require a majority vote including at least one of the Founding Members.

New members may be admitted for specific products or product families.

All members will have the right to terminate participation in the Power Stamp Alliance at any time.