7808 IC Fixed Positive 8V Voltage Regulator
The 7808 is a three-terminal positive voltage regulator that delivers a constant 8V output from a higher unregulated DC input. As part of the popular 78xx regulator family, it is widely used in electronics requiring regulated mid-range DC voltage.
It operates with input voltages typically between 10V and 25V and supplies output current up to 1A, or higher with proper heat sinking. The IC integrates thermal overload protection, short circuit protection, and current limiting to ensure safe operation in various environments. The 7808 is ideal for analog and digital circuits that need a stable 8V supply. It performs reliably in embedded systems, communication devices, test equipment, and general electronics projects.
Applications
8V power supply for electronic systems
Voltage regulation for analog circuits
Microcontroller and logic device supply
Communication and RF module powering
Sensor and display power systems
Robotics and automation applications
General electronics development and prototyping
Key Features
Fixed 8V output voltage
Supports up to 1A current
Input range from 10V to 25V
Built-in short circuit protection
Includes thermal overload shutdown
Current limiting for safe operation
TO-220 and SMD packages available
Pin Configuration (TO-220 Package)
| Pin | Name | Description |
|---|---|---|
| 1 | Input | Unregulated DC input |
| 2 | Ground | Common ground |
| 3 | Output | Regulated 8V output |
Specifications Table
| Parameter | Value |
|---|---|
| Output Voltage | 8V ± 2% |
| Output Current (Typical) | 1A |
| Input Voltage Range | 10V to 25V |
| Dropout Voltage | ~2V |
| Line Regulation | 4mV (typical) |
| Load Regulation | 50mV (typical) |
| Quiescent Current | 5 mA (typical) |
| Operating Temperature Range | 0°C to +125°C ‘ |
| Package Options | TO-220, TO-92, SOT-223, DPAK |
