C AS E S TU DY

Innovative Startup Breaks
Barriers to Entry in Growing
Powerstage Market

G OAL

Accelerate time to market for a configurable power-stage controller solution
based on Arm’s world-class renown architecture.
Name: WandowPower
Vertical: Power stage solutions
Funding: $5 million
HQ: Fremont, California
Founded: 2019

SO L UTION

WandowPower subscribed to Arm Flexible Access for Startups for zero-costaccess to a broad portfolio of Arm IP, tools, and support, with licensing androyalties due only at tape out to minimize upfront expenses.
ARM FLEXIBLE ACCESS BENEFITS— Freedom to select and experiment with included Arm IP and only

pay for what is used at tape out.
— Access to industry-leading software tools and pre-existing scripts

to save development time and effort.
— Excellent support and timely responsiveness from Arm experts.

Differentiate for Next-Gen Technology
While high-performance power solutions are essential for high-efficiency
applications, such as cloud datacenters, AI computing, and 5G, overcoming
the technology barriers to market entry can be challenging for cash-strapped
startups looking to differentiate their offerings.

For innovative startup WandowPower, an Arm Flexible Access forStartups membership allows it to keep necessary development expenses
to a minimum, while basing its technology-advancing solutions on Arm’s
world-class architecture.

“Without Arm Flexible Access for Startups, we’d simply not beable to get this far so quickly using high-performance, dependabletechnology,” said Majid Kafi, co-founder and chief operating officer atWandowPower. “Not only are Arm IP and tools helping us accelerate
time to market, but our customers are pleased to see us using
something they know and use as well.”
The WandowPower family of powerstage and controller solutions aredesigned to deliver 100+ amps with more than 95% load-line efficiency.
Using Arm Flexible Access for Startups, the WandowPower team hasdeveloped a 12-phase configurable digital multi-phase controller, theWP9010K, with production anticipated in 2024. Separate pieces of thesolution, including MOSFETs and smart drivers, are due to market
even earlier.

C A S ES T U D Y2Design for Configurability Across Markets
While the design uses Arm IP (Arm Cortex-M0+) for multiple sections,
WandowPower’s number-one goal was to make it highly configurable
through the firmware. That meant enabling some computation on thechip itself, managing fault handling, and returning data back to the host.
As a result, the microcontroller design is reconfigurable for multiple
platforms—increasing market options without costly metal changes
or full-layer design changes.

“Having the system design kit full of implementation guides,
documentation, and a whole set of blocks to choose from—rather thanhaving to regenerate or create from scratch—greatly helped speedup our design cycle,” explained Khash Dolatshahi, head of digital design
at WandowPower. “The familiarity and ease offered with Arm Flexible
Access for Startups helped me ramp up very quickly and integrate Arm
into our solution with great confidence in the design.”
In addition, since Arm Flexible Access for Startups includes the Arm Keilcompiler, the WandowPower team can easily compile new programs or new
firmware based on testing existing software, making modifications, andrecompiling the firmware again—reusing existing code wherever possible.

“With Arm Flexible Access for Startups, we don’t have to expend
valuable manpower building everything from scratch or verifying
the MCU,” Dolatshahi added. “We can rely on the performanceof the IP, the design kit, blocks and scripts available to us, and focus
our efforts on the rest of the design and peripherals that we’re adding.
That gives us a great jump start.”C A S ES T U D Y3

Save Time with Valuable Support
As well as the IP, tools, and libraries available in Arm Flexible Access forStartups, the team at WandowPower has also benefitted from the supportof Arm experts and other partners in the Arm ecosystem.

“The support that we’re getting through the Arm Flexible Accessfor Startups program from experts who’ve been right there with
us when we’ve needed them has been excellent,” Majid concluded.
“For a small company without masses of funding, it has helped
tremendously to have access to zero-cost IP and tools until wetape out and start see revenues grow.”

A D D I T I O N A L

I N F O R M A T I O N— WandowPower website— Flexible Access for Startups

C A S ES T U D Y4