The L7912 is a -12V fixed negative voltage regulator from the ST Microelectronics L79xx series. It is designed to provide stable, regulated voltage output for electronic circuits, protecting against overcurrent, thermal overload, and short circuits.
Key Features
- Fixed -12V Output: Provides a stable -12V regulated output.
- Overload Protection: Integrated current limiting, thermal shutdown, and safe area protection.
- Low Dropout Voltage: Maintains stability and efficiency.
- Wide Input Voltage Range: Operates efficiently with varying input voltages.
- TO-220 Package: Ensures easy mounting and heat dissipation.
Package Includes
- 1 x REG IC L7912 ST – -12V Voltage Regulator
Specifications
- Model Number: L7912
- Manufacturer: ST Microelectronics
- Output Voltage: -12V
- Input Voltage Range: -14.5V to -35V
- Output Current: Up to 1.5A
- Load Regulation: 100mV (max)
- Line Regulation: 50mV (max)
- Quiescent Current: 6mA (typical)
- Thermal Shutdown: Yes
- Short Circuit Protection: Yes
- Package Type: TO-220
- Operating Temperature: -40C to +125C
Usage Instructions
- Input Connection: Connect the unregulated negative voltage to the input pin.
- Output Connection: The output pin provides a stable -12V supply.
- Ground Reference: Ensure a proper common ground for stable operation.
- Heat Dissipation: Use a heatsink if high power dissipation is expected.
Datasheet
For more technical details, please refer to the official datasheet:
Download L7912 ST Datasheet (PDF)
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