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LM7809 Regulator IC - 9V Fixed Linear Regulator - TO-220 IC

SKU: B8OWWH6YC4
The LM7809 is a fixed positive voltage regulator IC designed to provide a stable and regulated 9V DC output from a higher DC input voltage source. Belonging to the widely trusted 78xx series of linear voltage regulators, the LM7809 offers reliable voltage regulation, ease of use, and robust protection features for a variety of electronic applications. The regulator requires only...
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Specifications

Specifications:

Module Type: Fixed Positive Linear Voltage Regulator IC
IC Model: LM7809 / 7809
Output Voltage: +9V DC Fixed
Package Type: TO-220
Number of Pins: 3
Output Current: Up to 1A (typical)
Input Voltage Range: 11V – 35V DC
Minimum Input Voltage: Approximately 11V DC
Dropout Voltage: Approximately 2V
Quiescent Current: Typically 5mA
Line Regulation: Typically 0.01%/V
Load Regulation: Typically 0.3%
Ripple Rejection: Up to 60–70dB
Protection Features: Thermal Shutdown, Short-Circuit Protection, SOA Protection
Mounting Type: Through-Hole
Operating Temperature: 0°C to +125°C
Storage Temperature: -65°C to +150°C

Additional Resources

LM7809.PDF

FAQ

1. What is the LM7809 Regulator IC used for?

The LM7809 is used to provide a stable and regulated 9V DC output for electronic circuits, power supplies, communication devices, sensors, and embedded systems.

2. What output voltage does the LM7809 provide?

The LM7809 delivers a fixed and regulated output voltage of +9V DC.

3. Does the LM7809 include built-in protection features?

Yes, the LM7809 includes thermal overload protection, short-circuit current limiting, and safe operating area protection for reliable and safe operation.

4. What input voltage is required for the LM7809 to operate correctly?

The regulator typically requires a minimum input voltage of approximately 11V DC and can operate with input voltages up to 35V DC.

5. Can the LM7809 supply high current loads?

Yes, the LM7809 can provide up to 1A output current under normal operating conditions, making it suitable for a wide range of low- and medium-power electronic applications.

View full product details

The LM7809 is a fixed positive voltage regulator IC designed to provide a stable and regulated 9V DC output from a higher DC input voltage source. Belonging to the widely trusted 78xx series of linear voltage regulators, the LM7809 offers reliable voltage regulation, ease of use, and robust protection features for a variety of electronic applications.

The regulator requires only a few external components and incorporates built-in thermal overload protection, short-circuit current limiting, and safe operating area protection to ensure safe and dependable operation. Encased in a TO-220 package, the LM7809 can deliver output currents up to 1A under normal operating conditions, making it suitable for powering circuits that require a regulated 9V supply.

Its simplicity, low cost, and proven performance make the LM7809 a popular choice for power supplies, embedded systems, communication equipment, audio circuits, and DIY electronics projects.

Key Features

  • Fixed +9V regulated output voltage
  • Based on the industry-standard 78xx regulator series
  • Output current capability up to 1A
  • Built-in thermal overload protection
  • Internal short-circuit current limiting
  • Safe Operating Area (SOA) protection
  • Excellent line and load regulation
  • Low output noise and ripple
  • Requires minimal external components
  • TO-220 package for efficient heat dissipation
  • High reliability and long operational life
  • Suitable for industrial, commercial, and hobby electronics