[sdiy] get 5V from 12V - DC-DC converter or 7805?

Tony Allgood oakleysound at gmail.com
Sun Dec 27 23:18:51 CET 2020

The OKI-78SR-5/1.5-W36-C is pin compatible with a traditional 7805 
linear regulator. The disadvantage is that it is more expensive and 
creates a small amount of high frequency noise that is both radiated and 
into the power rails. The amount of noise depends on the current draw 
from the +5V line, with greater currents creating more noise.

If the current draw is less than 100mA, I'd be tempted to use a 78M05.


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