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7809 +9V Linear Voltage Regulator

  • The LM7809 series of three terminal positive regulators are available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications.
  • Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible.
  • If adequate heat sinking is provided, they can deliver over 1A output current.
  • Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. 
  • 7809 monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible.
  • If adequate heat sinking is provided, they can deliver over 1.0A output current.
  • They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation.
  • In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

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