LM7909 Negative Voltage Regulator – Fixed -9V Output

8.00 EGP

The LM7909 is a three-terminal negative voltage regulator that provides a fixed -9V output with outstanding performance and reliability. It is widely used in power supply circuits for analog and digital devices that require a stable negative voltage source.

Description

🔧 Key Features:

  • Fixed Output Voltage: -9V

  • Output Current: Up to 1.5A (with proper heat sinking)

  • Internal Thermal Overload Protection

  • Short Circuit Current Limiting

  • Output Transistor Safe-Area Compensation

  • Low Quiescent Current

  • Stable and Reliable Performance

  • Drop-in Replacement for Standard -9V Regulators

📦 Specifications:

  • Input Voltage Range: -11.5V to -35V

  • Output Voltage Tolerance: ±2%

  • Package Type: TO-220 (through-hole)

  • Mounting Type: Through Hole

  • Operating Temperature: 0°C to +125°C

⚙️ Applications:

  • Dual-polarity power supplies

  • Operational amplifier circuits

  • Audio equipment

  • Industrial and embedded systems

  • Any circuit requiring a stable -9V regulated supply

📝 Notes:

  • Requires external capacitors on the input and output for improved stability.

  • Proper heat sink is recommended for high-current applications to prevent overheating.

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