7800 series integrated circuits (ICs) are 3 terminal device that outputs a certain voltage (5V for the 7805) as long as the input voltage is at least about 2V higher than the output voltage. The 78 indicates that it is for a positive supply in relationship to ground. The following 2 digits indicate the amount of voltage that it outputs. There is also a 79xx series that are used with voltages that are negative in relationship to ground.
All limitations of components should be checked with the datasheet. Here’s a handful of important ones, and is not guaranteed to be accurate.
- Max supply voltage: 35V
- Max current: 1.5A. Would need a good heat sink
- Internal power dissipation: Internally limited (reduces output current as needed to prevent overheating.
- Brief split-dual supply op amp voltage follower with output polarity indicator LEDs circuit
- Brief NPN PNP BJT push pull amplifier circuit fragment
- Brief PNP switch circuit that turns on with a high input voltage thanks to NPN BJT
- Brief improved NPN PNP BJT emitter follower with no BE drop circuit
- Brief N channel enhancement mode MOSFET switch circuit – 2N7000 transistor
- Brief 74HC14 integrated circuit IC controlling a higher voltage electronics circuit
- Brief single 2N3904 NPN bipolar junction transistor BJT LED flasher circuit
- Brief DPDT latching relay – HFD2 005 M L2 555
- Brief operational amplifier op amp peak detector circuit using LM358 single supply
- Brief split or dual supply op amp comparator demonstration circuit
- Brief LM334 three terminal adjustable constant current source
- Brief op amp rail splitter circuit turning single into split dual supply
- Brief LM393 open collector comparator non inverting circuit
- Brief photodiode component making a light dependent current source circuit
- Information on this site is not guaranteed to be accurate. Always consult the manufacturer info/datasheet of parts you use. Research the proper safety precautions for everything you do.