Page 15 - EngineerIT July 2022

ELECTRONICS

performance by integrating
SilentMOS™ architecture and
bootstrap capacitor into a single,
thermally enhanced package. Also, the
LTC7051 can reduce ringing and spike
energy, which shows not only on the
switch node but also propagates to the
output. In actual applications, output
load requires tight tolerance, and
part of this is nominal DC. However,
the noise contributed by high spike
energy and ripple, which also shows
at the output, consumes the overall
budget. Power-hungry data centres
will save substantial energy and cost,
not to mention the added benefits of
less thermal management and EMI
that would be reduced significantly or
eventually be eliminated, while still
Figure 9. Output noise spectrum response at 1 V having 60 A load running at 1 MHz switching
frequency. properly observing filter design and
component placement. With all that
Conclusion being said, LTC7051 should be your
The LTC7051 DrMOS demonstration platform can be used to provide an unbiased go-to power stage and the must-have
comparison between competitive product offerings. Operating in high switching DrMOS device for your VRM design
frequency, the LTC7051 significantly boosts power conversion efficiency and thermal and application needs. n

About the authors Christian Cruz is a senior applications development
Gary Sapia began working for Linear Technology engineer at ADI Philippines. He holds a bachelor’s degree
(now part of Analog Devices) nearly 23 years in electronics engineering from the University of the
ago. Before that he was an analog design East in Manila, Philippines. He has more than 12 years
engineer for Ashtech, which later became of engineering experience in the field of analog and
Magellan/Orbital Sciences. Back in the early digital design, firmware design, and power electronics,
days of GPS, Gary designed GPS RF analog which includes power management IC development as well as AC-
front-end solutions. He also designed and troubleshot analog to-DC and DC-to-DC power conversion. He joined ADI in 2020 and is
circuits for power supplies, as well as LNAs, complete analog currently supporting power management requirements for cloud-based
front ends, op amp and comparator solutions, miscellaneous computing and system communications applications. He can be reached
data converter solutions, and the resulting product test systems. at christian.cruz@analog.com.
His job also included writing the software to run these test
systems. After joining Linear Technology, Gary came aboard as Joseph Rommel Viernes is a power applications staff
an FAE assigned to Bay Area companies and had the pleasure engineer at ADI Philippines. He joined ADI in 2018. He has
of working with multiple engineers on several different analog more than 17 years of power supply design experience
system designs. After four decades of experience working with working at companies such as Emerson Network Power,
people and hardware, Gary is now the team leader for ADI’s new Phihong Technology, Power Integrations, and now ADI. His
technologies and market expansion team and is eager to help focus is on industrial and communications power system
continue ADI’s path toward profitable future growth. He can be applications. He earned his bachelor’s degree in electronics engineering
reached at gary.sapia@analog.com. from De La Salle University in Manila, Philippines. He can be reached at
joseph.viernes@analog.com.
Long before Kareem Atout decided to pursue a career in the
tech world, he tinkered with electronics, built Marvin Neil Solis Cabueñas graduated with a bachelor’s
his own stereo equipment, and generally degree in electronic engineering from De La Salle University in
kept his parents constantly worried about the Manila, Philippines. Before joining ADI in 2021, Marvin worked
next Kareem-induced power outage! Kareem as a systems engineer for Azeus Systems Philippines, Inc., then
parlayed his love for creative electronic worked as a network engineer for Technistock, Philippines,
discovery into his successful 25-year career Inc. from 2014 to 2017 and as a research and development
in electrical engineering. As a senior systems engineer for engineer for Nokia Technology Centre Philippines from 2017 to 2020. He has
communications infrastructure, he is learned in the areas of more than nine years of work experience in different fields such as embedded
both analog and digital design. He continues to break barriers systems programming, digital signal processing, simulation modeling and
that invigorate the semiconductor industry by applying his others. He currently works as a senior firmware engineer on various projects
upbeat brand of professionalism and inspired designs to wired for the power business unit of ADI. He is currently working toward his master’s
communications and power systems. He can be reached at degree in electrical engineering at the University of the Philippines. He can be
kareem.atout@analog.com. reached at marvinneil.cabuenas@analog.com.

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