منظم جهد (ريجيوليتور) سالب 8 فولت 7908

7908 Negative Voltage Regulator (-8V / 1A)

The 7908 is a fixed-output negative linear voltage regulator from the 79xx series (including L7908, LM7908, and MC7908). It is designed to provide a stable -8V DC output from a higher negative input voltage. Equipped with internal thermal overload and short-circuit protection, this regulator is essential for dual-rail power supplies, analog circuits, and sensitive electronic devices requiring a steady negative rail.

Key Features

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  Fixed Negative Output: Delivers a reliable -8V with a tight 4% voltage tolerance.

  
  


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  Integrated Protection: Features built-in thermal overload, short-circuit, and Output Transition SOA (Safe Operating Area) protection.

  
  


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  High Current Capacity: Supports an output current of up to 1A.

  
  


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  Standard Package: Comes in a through-hole format with a 2.54mm pin pitch, making it compatible with breadboards and standard PCBs.

  
  

Technical Specifications

Pin Configuration (Typical TO-220)

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  Pin 1 (GND): Ground reference.

  
  


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  Pin 2 (Input): Negative input voltage.

  
  


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  Pin 3 (Output): Regulated -8V output.

  
  

Applications

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  Dual-Rail Power Supplies: Working alongside a 7808 to provide $\pm$8V rails for operational amplifiers.

  
  


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  Analog Circuits: Providing a clean, steady supply for devices with high voltage sensitivity.

  
  


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  DIY Projects: Converting varying negative high-voltage sources into a specific -8V output.