AUSTIN, TX, April 28, 2026 /24-7PressRelease/ -- Shawn Searles, PhD, has been selected for inclusion in Marquis Who's Who. As in all Marquis Who's Who biographical volumes, individuals profiled are selected on the basis of current reference value. Factors such as position, noteworthy accomplishments, visibility, and prominence in a field are all taken into account during the selection process.

Dr. Searles has established a long and successful career in integrated-circuit and mixed-signal design, marked by more than four decades of technical innovation and leadership. Since 2013, he has served as a designer at Apple Inc. in the Austin, Texas, metropolitan area, specializing in hardware and mixed-signal design with a focus on power delivery. As the chief architect for power delivery, Dr. Searles is responsible for converting input battery/system voltage to the precise levels required by various sub-circuits within Apple devices; ensuring optimal current supply, best in class regulation with minimum solution size while maintaining high system power efficiency. His work is critical to extending device battery life and minimizing energy waste during voltage conversion.

Before joining Apple Inc., Dr. Searles spent a decade at Advanced Micro Devices from 2003 to 2013 as a fellow and mixed signal designer. In this capacity, he contributed to physical interface design across multiple product lines, further honing his expertise in analog and digital integration. Between 2001 and 2003, Dr. Searles was a principal engineer at Accelerant Networks in Portland. There, he focused on high-speed serial interfaces with adaptive PAM4 signaling, playing a pivotal role in advancing data transmission technologies for networking applications.

Dr. Searles's earlier tenure at Intel, from 1995 to 2001, as a principal design engineer involved working on high-speed digital cores, where he contributed to the development of advanced integrated circuits that powered next-generation computing platforms. He began his professional journey in Canada with Bell Northern Research (BNR) and Northern Telecom (later Nortel Networks) in 1989. Dr. Searles began his career in IC-design working on small analog chips used in telephony systems, laying the foundation for his future contributions to silicon design. His last work at BNR was on Synchronous Optical NETworks (SONET) where he was an early inventor and contributor to the field of Delay Locked Loops (DLLs). Notably, his first involvement in a tape-out sent to production occurred in 1985, marking the start of his extensive experience in bringing integrated circuits from concept to manufacturing.

Dr. Searles's academic background has been instrumental in shaping his technical acumen and innovative approach. He holds an undergraduate degree in engineering with a focus on electrical engineering from the University of Manitoba, awarded in 1987, followed by a Master of Engineering in electrical engineering from Carleton University, completed in 1989. Additionally, in 1995, Dr. Searles obtained a Doctor of Philosophy in electrical and electronics engineering from the University of British Columbia. This advanced study provided him with deep theoretical knowledge and research skills that have underpinned his success in industry-leading roles. During his studies, Dr. Searles received a scholarship from the Canadian Society of Professional Engineers.

In addition to his academic credentials, Dr. Searles is a licensed professional engineer and a licensed pilot. He attributes much of his success to his tenacity and credits the Bell Northern Research program for its forward-thinking approach to nurturing young engineers through summer work terms and hands-on training. Dr. Searles believes that organizations investing early in talent development can achieve long-term success by cultivating future leaders within their ranks.

Throughout his career, Dr. Searles has been an active member of the Institute of Electrical and Electronics Engineers. This membership has allowed him to remain committed to professional development while engaging with the broader engineering community.

Dr. Searles has made significant contributions through projects. Among his most notable achievements at Apple Inc. was the development of the power delivery system for Apple Silicon in the Mac. This project introduced a groundbreaking technology that was successfully integrated into Apple's power delivery solution for the first time in 2021.

With a career dedicated to continuous learning, adaptability across diverse technical domains and a passion for mentoring others, Dr. Searles has established a legacy within the global engineering community. Looking ahead, he intends to return to academia by contributing to curriculum development at the University of Austin and sharing his expertise with future engineers. Additionally, Dr. Searles is eager to teach others how to fly and hopes to pilot larger aircraft with organizations such as NetJets or Delta while becoming more involved in community activities.

About Marquis Who's Who®:
Since 1899, when A. N. Marquis printed the First Edition of Who's Who in America®, Marquis Who's Who® has chronicled the lives of the most accomplished individuals and innovators from every significant field of endeavor, including politics, business, medicine, law, education, art, religion and entertainment. The suite of Marquis® publications, including Who's Who in America® and Who's Who in the World®, remains an essential biographical source for thousands of researchers, journalists, librarians and executive search firms around the globe. Marquis® publications can be viewed at the official Marquis Who's Who® website, www.marquiswhoswho.com.

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