Description

The 7809 Voltage Regulator IC is a fixed 9V positive voltage regulator from the popular 78xx series. It provides a stable 9V DC output for a wide range of electronic applications. With built-in protection features such as thermal shutdown, short-circuit protection, and safe operating area compensation, the 7809 ensures reliable operation even under varying load conditions.

This IC is widely used in power supply circuits, Arduino projects, and embedded systems where a clean and constant 9V output is required. It can supply up to 1A of output current when properly heat-sinked, making it suitable for powering sensors, microcontrollers, and other 9V devices.

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Specifications:

• Model: LM7809 / 7809 Voltage Regulator
• Output Voltage: +9V (fixed)
• Input Voltage Range: 11V – 35V DC
• Output Current: up to 1A
• Dropout Voltage: 2V (typical)
• Quiescent Current: 8mA (typical)
• Package Type: TO-220
• Operating Temperature: 0°C to +125°C
• Built-in Protections:
  • Thermal overload protection
  • Short-circuit protection
  • Safe operating area protection

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Applications:

• 9V regulated DC power supplies
• Arduino and Raspberry Pi projects
• Embedded systems and sensors
• DIY electronics and robotics
• Battery-powered devices
• Audio and instrumentation circuits

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Why Choose It:

• Delivers a steady and reliable 9V output
• Built-in protection against overheat and short-circuit
• Easy to use and integrate into power supply circuits
• Cost-effective and durable component for DIY and industrial applications