2 open source boards using the PCA9557PW
Real designs built with the PCA9557PW, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
Power extender
StarGate01
90 × 71 mm72 parts2LMIT5
BratwurstPower
Qeteshpony
85 × 56 mm123 parts4LBSD-2-Clause1
The PCA9557PW in open source designs
The gallery holds 2 open source boards using the PCA9557PW from 2 GitHub repositories; a typical one measures about 87.5 × 63.5 mm and carries around 98 components.
50% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Power extender by StarGate01.
What boards using the PCA9557PW are built for
PCA9557PW: common questions
Where can I find a PCA9557PW reference design?
Each of the 2 boards on this page is a real design using the PCA9557PW. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
How big is a typical board using the PCA9557PW?
The median is 87.5 × 63.5 mm, and 50% are two-layer designs.
What is the most popular open source board using the PCA9557PW?
By GitHub stars, Power extender by StarGate01, with 5 stars.
Can I simulate one of these boards using the PCA9557PW before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.