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dave239955
dave239955
Associate II
Jan 20, 2022 7:32 PM UTC
Solved

Has any information on the PPAK SMD PCB land pattern . Im trying to use a LF50AB regulator and I cant find a PCB land pattern drawing anywhere , searched STM etc Thanks Dave

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Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
Jan 21, 2022 10:29 AM UTC

Welcome, @dave239955​, to the community!

Footprints are typically included in newer datasheets, but unfortunately this is still missing here. In the meantime, ST has a cooperation with UltraLibrarian, which is also referred to via the CAD Resources tab, but unfortunately the footprint for the PPAK 5L in connection with the LF50ABPT-TR is still missing, too.

Workaround: the LDFMPT-TR also uses an absolutely identical package, so you can use its footprint even if it is a different LDO. Simply select tab CAD Resources and get the footprint from there.

Is that helpful?

Regards

/Peter

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6 replies

Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
Jan 21, 2022 10:29 AM UTC

Welcome, @dave239955​, to the community!

Footprints are typically included in newer datasheets, but unfortunately this is still missing here. In the meantime, ST has a cooperation with UltraLibrarian, which is also referred to via the CAD Resources tab, but unfortunately the footprint for the PPAK 5L in connection with the LF50ABPT-TR is still missing, too.

Workaround: the LDFMPT-TR also uses an absolutely identical package, so you can use its footprint even if it is a different LDO. Simply select tab CAD Resources and get the footprint from there.

Is that helpful?

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
dave239955
dave239955Author
Associate II
Jan 21, 2022 11:15 PM UTC

thanks Peter that did the trick

Paul1
Paul1
Senior III
Jan 21, 2022 2:35 PM UTC

You can get footprints at

  • SnapEDA.com
  • mouser.ca (See ECAD icon on page for part, I see a few different LF50AB)

Paul

dave239955
dave239955Author
Associate II
Jan 21, 2022 11:14 PM UTC

Thatnk you paul sadly PPPAK is not available from Mouser, or SnapEDA, the DPAK D2PAK versions are

Paul1
Paul1
Senior III
Jan 24, 2022 12:49 PM UTC

--deleted--

Peter BENSCH
Peter BENSCH
ST Technical Moderator
Jan 24, 2022 1:07 PM UTC

Please don't use the footprint from the document on bdtic.com as it is from 2004 and much older than the current one mentioned above.

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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