L7912CV Linear Regulator 12V 1.5A Negative TO-220


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LM7912 belongs to the family of Voltage regulators. The name “79” indicates negative and the term “12” indicates the voltage. So “7912” means that this IC will regulate a negative 12V for your projects. You can also check on 78 series for positive voltage regulators.

When you are designing an analog circuit, the circuit might need negative voltage either as a power source or as a reference voltage. In both cases, 7912 will be an ideal choice when you need a negative 12V. The output current of this IC is up to 1A, however, with an appropriate heat sink, the datasheet says that a peak current of 2.2A can be achieved through this IC.



  1. No External Components Required
  2. Internal Thermal Overload Protection
  3. Internal Short Circuit Current Limiting
  4. Output Transistor Safe−Area Compensation
  5. 12V Negative Voltage Regulator
  6. Minimum Input Voltage is -14.5V
  7. Maximum Input Voltage is -27V
  8. Peak Output Current is 2.2A
  9. Average Output Current is up to 1A
  10. Internal Thermal Overload and Short circuit current limiting protection is available.
  11. Available in TO-220 package only.


  1. Constant -12V output regulator to use as power or reference voltage for analog and digital circuits.
  2. Current Limiter for certain applications
  3. Regulated Dual Supply
  4. Output Polarity-Reversal-Protection Circuit

Additional information

Brand Name







Voltage Regulator

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