I'm using an LM7805 in voltage regulator mode.
- Vin is 15V
- Vout is 5V (regulated)
- The attached load draws 200mA
How to calculate how much power the LM7805 would dissipate in this setup (and whether or not I need a heat sink)? Couldn't understand it from looking at the datasheet.
P.S. I'm asking because it gets quite hot, which I didn't expect. Checked the attached load, it is around 0.2A, so well within the limit of 1.5A.