Bypass capacitor size: does it make a difference?

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
From my experience, LM3xx regulators are not at all that sensitive to ESR of output caps. In several dozens of overhauled CD players and preamp sections, I have never had any problems with low ESR (not ultra-low ESR, though) after LM regulators.

Read this paper, page 13 illustrates how to make an LM317 with insufficient phase margin when a tantalum is used instead of aluminum electrolytic:
http://www.omicron-lab.com/fileadmi...notes/App_Note_Noninvasive_Stability_V1_2.pdf
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.