What parameters effect on voltage regulator's temperature? Is it current of output or another parameters effect on temperature? For example if a lm7805 is used for current output of 1A and 18 volt ...
I've designed a simple PWM RGB LED slow fader to be used as a garden lighting effect. My circuit works great, but I under-estimated the amount of heat that is generated by the 7805 linear regulator. ...
Should an LM317 (specifically a TI LM317MQDCYR) rated for 500ma output current really be getting hot to touch when only pulling 170ma at 5V? Package is SOT-223, input is 9V. Is this normal?