Quote:
Originally Posted by Cruisin Marine
7805 has IP voltage range of 7-25 volts.
7809 12-35 volts
7824 ?
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True. They are in series, so one output voltage is the next input voltage.
The hardest life on board in this case is the 9V reg. which supplies current to fast pulse switches and experiences transient spikes from the parasitic inductance of the board traces in return. It also has to drop 15V from the one upstream.
The 5V one has an easy life. The 24V reg has an unremarkable one.
There’s no difference from the style of case, same insides.