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Topic: Running a voltage regulator below recommended input voltage. (Read 2 times) previous topic - next topic

oric_dan


Runaway Pancake

Well, the OP said his max expectation was for "100 mA",
but I may take a look at that.
The 2940 output with 47? showed some difference
from 60?, I checked and re-checked it.
"Hello, I must be going..."
"You gotta fight -- for your right -- to party!"
Don't react - Read.
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oric_dan

Results for the LM2940 were interesting, I was just wondering how it would go for heavy loads.

Jack Christensen

Late to this party, questions for the OP. How long to the AA cells need to last? What is the source of the 12V supply?
MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

John_S

ISorry I've been away lately.

Runaway Pancake, thanks for your chart there. It's nice to back up with experimentation what everyone was saying would happen.

Quote from: Jack Christensen

Late to this party, questions for the OP. How long to the AA cells need to last? What is the source of the 12V supply?
I'm planning a timelapse controller. It probably would only be run for 4 hours maximum at a time. The 12V would be from a SLA or Li-ion battery or whatever the user wants to take into the field for power.

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