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Connecting a 5 pin nte7077 voltage regulator

  1. Mar 19, 2012 #1
    I am working on a circuit. I have an IC bridge rectifier in place for ac to dc conversion at the proper voltage and amperage. I understand that the nte 7077 voltage regulator is for regulating voltage at 110 volts + or - .8 volts @ 1 amp max. This is a 5 pin IC regulator. I do not understand what the 5 pins are for. They show Pin 1 common ground. I get that. Pin 2 base? where would that be connected to. Pin 3 input? I assume that is the output of my bridge rectifier dc voltage which would vary with the ac voltage. Pin 4 output. I assume that is the 110 volt regulated supply. And Pin 5 output control? Do I need this? I want 110 volts regulated nothing else. could you help me understand how many of the pins I need to use and how to connect them to. Much appreciated! I'm new to the forum so I hope I'm posting in the right place. Thanks Again. Roy Andenmatten
  2. jcsd
  3. Mar 19, 2012 #2


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    Staff: Mentor

    Welcome to the PF.

    The NTE datasheet is indeed sparse, and I didn't find any obvious Application Notes with a quick search. There are some alternate parts listed on this web page:


    You might check into those part numbers to see if there are any good application notes.

    I do need to ask what you are going to use this IC for, though. It's normally used in some pretty dangerous TV circuits. What are you trying to build, and what is your experience with high voltage?
  4. Mar 20, 2012 #3
    Thanks for the reply, My application has nothing to do with high voltage tv circuits. It is limited to the 110 volts and is only running 0.5 amp with 1.0 amp circuit breaker. diodes are voltage sensitive and I want a steady voltage with a tight tolerance.
  5. Mar 20, 2012 #4
    That is still enough voltage and current to be dangerous. It also sounds like you're plugging it into a wall outlet.
    Please, be careful, and familiarize yourself with the relevant safety precautions.
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