7812 is a 12V Voltage Regulator that restricts the voltage output to 12V and draws a 12V regulated power supply. The 7812 is the most common, as its regulated 12-volt supply provides a convenient power source for most TTL components.
7812 is a series of 78XX voltage regulators. For ICs within the family, the xx is replaced with two digits, indicating the output voltage (for example, the 7805 has a 5-volt output, while the 7812 produces 12 volts).
7812 Pinout Configuration
| Pin Number | Pin Name | Description |
| 1 | Input (V+) | Unregulated Input Voltage |
| 2 | Ground (Gnd) | Connected to Ground |
| 3 | Output (Vo) | Outputs Regulated +12V |
Specifications
| Product Attribute | Attribute Value |
| Product Category: | Linear Voltage Regulators |
| Mounting Style: | Through Hole |
| Package/Case: | TO-220 |
| Number of Outputs: | 1 Output |
| Polarity: | Positive |
| Output Voltage: | 12 V |
| Output Current: | 1.5 A |
| Output Type: | Fixed |
| Input Voltage, Min: | 14 V |
| Input Voltage, Max: | 35 V |
| Minimum Operating Temperature: | 0 C |
| Maximum Operating Temperature: | + 125 C |
| Load Regulation: | 100 mV |
| Line Regulation: | 120 mV |
Applications
- Circuits requiring a steady 12V supply
- Protection for devices having specific voltage sensitivity
- DIY projects requiring specific voltage from an existing higher/ varying voltage supply
