diff --git a/AppNotes.md b/AppNotes.md
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@@ -2,4 +2,5 @@
 1. Jim Williams' Analog Resources
     1. [Reading List](http://readingjimwilliams.blogspot.com/p/best-app-notes.html)
     2. [AN47FA: High Speed Amplifier Techniques, A Designer’s Companion for Wideband Circuitry](https://www.analog.com/media/en/technical-documentation/application-notes/an47fa.pdf)
-2. [Unitrode Design Handbook](https://www.ti.com/seclit/ml/slup132/slup132.pdf)
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+2. [Unitrode Design Handbook](https://www.ti.com/seclit/ml/slup132/slup132.pdf)
+3. [TI Power Supply Design Seminars](https://www.ti.com/design-resources/seminars/power-supply-design-seminar-psds/psds-resources.html)
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