This app note is about protecting the input side of a regulator from overvoltage by choosing a capacitor with enough ESR to damp the LC network at its input, possibly formed by a long cable to a wallwart, etc.
http://www.linear.com/pc/downloadDocument.do?navId=D4125
The idea is simple, but fairly universally applicable. Although it has been discussed in other fora here, I thought a pointer to this app note might be handy.
-- mirlo
http://www.linear.com/pc/downloadDocument.do?navId=D4125
The idea is simple, but fairly universally applicable. Although it has been discussed in other fora here, I thought a pointer to this app note might be handy.
-- mirlo