[sdiy] lm317t diferential input output voltage

[Timothy Daugard]

On 2/23/2014 3:31 PM, dragons wrote:
> Hi,
> I just wondered if anyone knew what the lowest difference between the 
> input and output voltage should be on a Lm317T ?
   ( P.S. I did look at the data sheet but couldn't find any figures, 
maybe I wasn't looking carefully enough )
>

National data sheet specifies that you have to have a 1.3V reference so 
I suspect your input has to be at least 1.3 V higher than the desired 
output, but that is just a guess.

Tim Daugard
<Back to lurking, RF, MSP430 and figuring income taxes>