HSOP-28 footprints?



I would like to know if there’s any HSOP-28 footprints out there before having to define my own (big GND pads in the middle of the package):


Searches on github, google and grepping my favourite uber-footprint collection have been unfruitful so far:

And no trace on Housings* on the official KiCad .pretty’s either :_/

Are they known by another name? Did I miss them by accident? Any contrib repos you know where they might be?


Hi @brainstorm, In IPC-7351B terms it would be something like SOP80P990X220-28. It is quite specialised, so you’ll probably end up making it yourself.

Use the “New footprint using footprint wizard” (in the footprint editor) , template SOIC. Set number of pins to 42 and delete the middle 7 pins on the middle of each side (and renumber the remaining pins to match the device), then you will have to manually add the GND pad.



Of course, in the wizard you need to set the pitch to 0.8 mm and the correct pad settings…


Yeah, thanks for your suggestions Steev! Here it is, custom made:

HSOP-28.kicad_mod (2.9 KB)


Hi @brainstorm, No problem. I would advise that you change the silkscreen outline to the F.Fab layer or modify it as it is crossing pad #1 (cutting the corner).

Also, i think you should change the heatsink pin numbers to something else, like #29 (they can be the same pin number), otherwise you will have a conflict (the heatsink pins will connect to a different net (GND) compared with the small pin #1 and pin #2).


Yeah, true on both suggestions, I found myself changing it while I was fiddling with the PCB layout, here it is if someone else needs it in the future:

HSOP-28.kicad_mod (2.9 KB)

Thanks again!