I have been searching everywhere for this answer. I am looking at two different voltage regulators- LM7805 and LM7815.

What is the difference between the LM7805 and LM7805CV???? Also, what makes the LM78L05 any different?

The same goes for LM7815...

 

A 7805 is a fixed 5v regulator
A 7815 is a fixed 15v regulator.
Usually, the letter suffix indicates the package type; "C" usually denotes a TO-220 package.

Determine the regulator's manufacturer, and download their datasheet to be certain.

 

A 7805 is a fixed 5v regulator
A 7815 is a fixed 15v regulator.
Usually, the letter suffix indicates the package type; "C" usually denotes a TO-220 package.

Determine the regulator's manufacturer, and download their datasheet to be certain.

Thank you. Is there any difference with a LM78L05 and LM7805? I think I may have heard somewhere that the polarity is reversed.

 

The 78L05 is good to 100mA.
The 78M05 is good to 500mA.
The 7805 is good to 1A.
Datasheets are your friends.