Had the same question, then read the datasheet, and it seems the chip is almost identical (including same mask sets erratum though I could note one USB pb fixed):
I don't see anymore:
ERR050101 USB: Endpoint conflict...
Simply said rather than in my previous message: the dmg2305ux role seems to be that it allows for reverse polarity protection while not causing a significant voltage drop and not causing significant current...
Something that always intrigued me is that the mosfet (dmg2305ux) is always on (as the gate is always at GND level), is it only there for a kind of reverse polarity protection circuit?
EDIT: Must be that the dmg2305ux...
Hey Paul, thanks a lot for adding components locations in the schematics really useful!
I think at least one cap (C13) is missing for T41, could it be the one not labelled just above C14 on the PCB?
the pcb file should not be very useful at all to you unless you want to replicate copyrighted work, the pcb is highly integrated making it hard to reuse for a different board. Paul has provided not only the schematics...
What would be great if not too long on your web page (sorry if you are already working on it) is a fleshed out diagram on this web page (e.g. a link for a truly minimum T40 implementation diagram ; we probably don't...