What is the reason that the R-78E5.0-0.5 is sold with the Smoothieboard instead of a LM7805? They are pin compatible and I don’t see any big differences comparing the datasheets, so I should be able to just use a LM7805, correct?
Imported from wikidot
I think you can try it if you are sure about what you are doing, but we only support adding the R-78E5.0-0.5. I’m not the more knowledgeable about it but I think it will handle 24v input better.
Thank you that makes sense. The 7805 will indeed have thermal issues at 24v because of its inefficiency. At 12v the 7805 will suffice.
Even at 12V a 7805 is turning to heat 7v…I like using 7805’s when the input is 8 to 9v and draw is next to nothing.
Recom Power R-78E5.0-1.0 is a 5v 1amp 5w regulator which is good from 8v to 28v input is 91% efficient.
Recom Power R-78E5.0-0.5 is the Smoothie supported regulator 5v 0.5amp 2.5w and is 92% efficient.
Another pin compatible regulator is the 811-2196-5-ND 5v 1.5amp 7v-36v input 8w 90.5% efficient