It quotes usb-c 5v@5A. I don't think I've ever seen a device that could provide 5V@5A over usb, is this a thing? It seems like this is going to really limit the flexibility of powering this.
https://www.asme.org/topics-resources/content/explore-the-ba...
Example: https://www.amazon.com/AmazonBasics-One-Port-Charger-Laptops...
Specs: PD 3.0 (USB-C Port): 5V ⎓ 3A / 9V ⎓ 3A / 12V ⎓ 3A / 15V ⎓ 3A /20V ⎓ 3.25A (Up to 65W)
There are tons and tons of examples like this.
Example: https://www.anker.com/products/a2341
From what I can tell this is a top of the line Anker GaN charger which can produce 140W. However, if you look in the manual: 5.0V 3.0A / 9.0V 3.0A / 15.0V 3.0A / 20.0V 5.0A / 28.0V 5.0A (140.0W Max)
The only power supply I have seen that can do this rediculous 5A at 5V is the one being released for the RP5, https://www.sparkfun.com/products/23584 You can see from the picture it actually outputs a nonstandard 5.1V@5A, suggesting that the voltage drop due to the cable actually causes problems powering the RP5 so they built a 'hot' power supply to try to correct for it. This seems like a pretty big design flaw, why not just design the RP5 so it can negotiate a higher voltage on PD? It looks like it has room for a couple mosfets to implement this.