Which parameter in this data sheet is the default current flowing from the input to the ground regardless of the load current?
In my case an 12V input will be regulated to 5V by the TL780-05. So to estimate the total power dissipation I will use the following formula:
Preg = (I_n × 12) + (I_load × (12-5))
My problem is I don't know how they name I_n in the regulator datasheets, so I got stuck. Where in the datasheet I can find I_n? And is that always named same way?
Best Answer
This is the one:
So typically 5 mA, maximum 8 mA
How to quickly find that: I know it's a current so I look for any parameter specified in A (or mA, uA) in the UNIT column. Then I look at each and see if that could be the one.
There will be a small increase with increasing load current, see the line under the red rectangle.