Quick Start tutorial: Trouble with Footprint Viewer for the LD1117S33CTR part


#1

In an attempt to find the footprints for all of the parts on the tutorial’s schematic, I’ve been successful for all except for the voltage regulator part, which has a SOT-223 footprint. When I select that part, there is nothing that quite comes up for that:

I am of course very new to KiCAD, so I’m sure there is an easy solution to this this. I just can’t find it. Thanks!


#2

If your installation downloaded the footprints to your local machine, look in the directory:
. . . \KiCad\share\kicad\modules\TO_SOT_Packages_SMD.pretty

The footprint file is called SOT-223.kicad_mod I have never used this footprint so I can’t vouch for its accuracy. You may want to add some more copper area to the tab, for heatsinking.

Dale


#3

Here’s a version that includes thermal vias, so you can add some heatsink area on the opposite side of the board.

SOT-223_Thermal_Vias.kicad_mod (8.1 KB)

Dale


#4

Have you looked at the filter settings of cvpcb?


#5

Thank you all very much for your suggestions!

I will definitely try them out later.

I’m very impressed with KiCAD and the loyal user base. :slight_smile:


#6

I am having this issue too. Did you resolve it?
Additionally, it seems whenever i run cvpcb it takes some time to compile. is it downloading anything in that time?


#7

Which issue are you referring to? The usual suspects for problems with CVPCB are:

  • Setup of your schematic libraries, and the footprint libraries.
  • Access to the libraries hosted on Github
  • Missing, incomplete or out-of-date local libraries

These have been discussed in multiple threads.

I am quite pleased if you found my SOT-223 footprint either helpful (as a teaching example) or useful (in a layout).

Dale

p.s. - The KiCAD library system is NOT easy to understand. Don’t be afraid to ask questions if you are baffled after making an honest try to understand it.