EFI

[Sandy]

Look at the National Semi book, I am using the LM2940, and the LM2925, which
are both Automotive rated, can handle work down to a small amount over the
regulated output (less then 1 Volt) are spike and reverse protected. You
will have to do a bit more to clean up some of the other Automotive noise,
but that should not be too bad.

Sandy
At 05:37 AM 7/16/96 EDT, you wrote:
>Anyone out there have any solid simple cheap ideas for a 5V power supply for an
>EFI system.  It should have good filtering and be able to supply constant
>output down as low as 8V and as high as 14V.  I hear that transient spikes as
>high as 200V can be seen after the voltage regulator on an engine - so it
>should be immune to these as well.  Any ideas?  I am using a DATEL DC-DC
>converter which works rock solid through all cases.  Unfortunately it is $130. 
>The equivalent PICO unit is of equal cost.  I would like a solution for under
>$25.  Is this possible?  Thanks in advance.  BTW I think I need to be able to
>drive about 1Amp or so.
>
>- Z
>