- Sat May 18, 2013 7:18 pm
#159674
I've never done PCB design before, so forgive me if this is a piece of crap... but can someone look at this design:
https://dl.dropboxusercontent.com/u/707 ... ulator.brd
It's a USB power supply, using the TS30013 DC/DC chip here: http://www.mouser.com/ProductDetail/Tri ... DP4v3b4%3d
Schematic here: https://dl.dropboxusercontent.com/u/707 ... ulator.sch
I'm pretty certain it will work, I've done a few of these before, but it's somewhat hard to test an SMT design, at least for someone who's used to 10x40 breadboarding, and then moving that to an equivalent protoboard. I'm not really looking for schematic help, I can figure that out for myself.
I'm going to be ordering it from OSH Park, but it doesn't conform to their DRC - specifically, there's some clearances which I can't change, and some overlaps in the copper layers which I don't know how to eliminate.
> The clearances issues are all in the QFN16 regulator chip, and the footprint is defined by the TS30013 datasheet. I can't really fix this - or can I?
> The overlaps are for manually placed vias - 4 for a power ground connection, and 1 thermal via underneath the regulator (necessary as per the datasheet). I realize that there's a via and a trace in the same spot, but I don't know what to do about it.
What do I do about these? How's my PCB design? Any help is appreciated.
https://dl.dropboxusercontent.com/u/707 ... ulator.brd
It's a USB power supply, using the TS30013 DC/DC chip here: http://www.mouser.com/ProductDetail/Tri ... DP4v3b4%3d
Schematic here: https://dl.dropboxusercontent.com/u/707 ... ulator.sch
I'm pretty certain it will work, I've done a few of these before, but it's somewhat hard to test an SMT design, at least for someone who's used to 10x40 breadboarding, and then moving that to an equivalent protoboard. I'm not really looking for schematic help, I can figure that out for myself.
I'm going to be ordering it from OSH Park, but it doesn't conform to their DRC - specifically, there's some clearances which I can't change, and some overlaps in the copper layers which I don't know how to eliminate.
> The clearances issues are all in the QFN16 regulator chip, and the footprint is defined by the TS30013 datasheet. I can't really fix this - or can I?
> The overlaps are for manually placed vias - 4 for a power ground connection, and 1 thermal via underneath the regulator (necessary as per the datasheet). I realize that there's a via and a trace in the same spot, but I don't know what to do about it.
What do I do about these? How's my PCB design? Any help is appreciated.