L7912
The L7912 is a three-terminal negative voltage regulator that provides a stable -12V output from a higher input voltage. It is designed to deliver up to 1.5A of current with consistent performance. The L7912 is used in power supply circuits to generate a reliable -12V rail for various electronic and electrical applications.
Key Features:
- Fixed negative output voltage of -12V
- Capable of delivering up to 1.5A of current
- High voltage regulation with low dropout
- Built-in thermal overload and short-circuit protection
- Simple to use with minimal external components
- Compatible with standard 3-terminal voltage regulator applications
- Output Voltage: -12V
- Maximum Output Current: 1.5A
- Input Voltage Range: Up to -35V
- Dropout Voltage: 2V (typical)
- Line Regulation: 0.01% (typical)
- Load Regulation: 0.1% (typical)
- Package Type: TO-220, D2PAK
- Negative voltage power supplies
- Voltage regulation in analog and digital circuits
- Power management in electronic devices
- Battery-operated circuits requiring negative voltage
- Connect the input voltage to the input terminal (IN), ensuring it is negative relative to the ground.
- Connect the output terminal (OUT) to the load or circuit requiring the -12V output.
- Ensure that the ground terminal (GND) is properly connected to the system ground.
- Use a suitable heatsink if operating near the maximum current limit to ensure adequate cooling.
- Verify input voltage to avoid exceeding the regulator’s maximum rating.
- Ensure proper heat dissipation to prevent overheating.
- Verify polarity to avoid damage to the regulator and connected components.