18 May
2009
18 May
'09
2:51 a.m.
On 17 May 2009 at 21:32, Steve Stutman wrote:
Consider that back in the 70s linear regs like LM309
and 7805 needed
fair overhead on the rail.
Newer LDOs by def need less.
While I can understand that using a 78xx/79xx vintage regulator might
be important for the sake of accuracy, I'd be sort tempted to use
modern monolithic switching regulators if one wanted to preserve the
S100 "on board" regulation.
No more "scorched PCB" or big honking heatsinks--and less conversion
of amps into heat.
--Chuck