LM7912 -12V Negative Voltage Regulator IC (TO-220 Package)
₹99.00
- Full Name: LM7912 -12V Negative Voltage Regulator IC
- Fixed -12V regulated output
- Output current up to 1A (with proper heat sink)
- Built-in thermal overload protection
- Short-circuit protection
- Excellent line and load regulation
- Low output noise
- TO-220 package for easy mounting
- Simple three-pin design
- Reliable and durable performance
The LM7912 -12V Negative Voltage Regulator IC is a three-terminal negative voltage regulator designed to provide a stable -12V DC output from a negative input voltage. It is commonly used in dual power supplies, audio amplifiers, operational amplifier circuits, instrumentation, industrial electronics, and DIY electronics projects. The LM7912 features built-in thermal overload protection, short-circuit protection, and safe operating area protection for reliable performance.
Features
- Full Name: LM7912 -12V Negative Voltage Regulator IC
- Fixed -12V regulated output
- Output current up to 1A (with proper heat sink)
- Built-in thermal overload protection
- Short-circuit protection
- Excellent line and load regulation
- Low output noise
- TO-220 package for easy mounting
- Simple three-pin design
- Reliable and durable performance
Specifications
| Specification | Value |
|---|---|
| Product Type | Negative Linear Voltage Regulator IC |
| Model | LM7912 |
| Package | TO-220 |
| Output Voltage | -12V DC |
| Input Voltage | -14V to -35V DC (Recommended: -15V to -24V) |
| Maximum Output Current | Up to 1A |
| Dropout Voltage | Approx. 2V |
| Operating Temperature | 0°C to +125°C |
Pin Configuration
When viewed from the front (text facing you, pins downward):
| Pin | Function |
|---|---|
| 1 | Ground (GND) |
| 2 | Input (IN) |
| 3 | Output (OUT) |
Note: Unlike the 78xx series, the LM7912 has a different pin configuration. The metal tab is internally connected to Ground (GND).
Applications / Uses
- Dual-polarity power supplies
- Audio amplifier circuits
- Operational amplifier (Op-Amp) circuits
- Instrumentation systems
- Analog signal processing
- Industrial control systems
- Laboratory power supplies
- Embedded electronics
- DIY electronics projects
- Educational experiments
Advantages
- Stable -12V output
- Built-in protection features
- Simple three-pin design
- Reliable operation
- Low output noise
- Easy to integrate into circuits
- Suitable for hobby and industrial applications
Size
- Package Type: TO-220
- Body Width: Approx. 10 mm
- Body Height: Approx. 15 mm
- Overall Height (with leads): Approx. 30 mm
- Lead Pitch: 2.54 mm
- Weight: Approximately 2 g
Package Includes
- 1 × LM7912 -12V Negative Voltage Regulator IC (TO-220)
Note: The LM7912 requires a negative input voltage to produce a regulated -12V output. It is commonly paired with an LM7812 to create ±12V dual power supplies for audio, analog, and instrumentation circuits. For high current or large input-to-output voltage differences, use a suitable heat sink to prevent overheating.
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