Description
The 7805 voltage regulator IC is a commonly used linear voltage regulator that provides a stable +5V DC output from a higher voltage input. It is part of the 78xx series of voltage regulators, which offer fixed output voltages.
Thank you for reading this post, don't forget to subscribe!Key Features of 7805 IC
- Fixed Output Voltage: 5V DC
- Input Voltage Range: 7V to 35V
- Maximum Output Current: 1A (can be increased with an external pass transistor)
- Thermal Overload Protection: Prevents overheating damage.
- Short Circuit Protection: Automatically limits excessive current.
- Low Cost and Easy to Use: Requires only a few external components.
- Available in Different Packages:
- TO-220 (most common)
- TO-92 (for low-power applications)
- SOT-223, TO-3 (for specialized applications)
Pin Configuration
- Input (Pin 1): Connects to the unregulated voltage (7V-35V).
- Ground (Pin 2): Common ground.
- Output (Pin 3): Provides a regulated 5V output.
Application Circuit
A basic circuit requires:
- Input Capacitor (0.33µF to 1µF) to filter noise.
- Output Capacitor (0.1µF to 10µF) to improve transient response.
Vin (7V-35V) → [7805] → Vout (5V)
Common Applications
- Power supply for microcontrollers (Arduino, Raspberry Pi, etc.).
- Battery chargers.
- Consumer electronics.
- Embedded systems.
Would you like a circuit diagram or more details on usage?
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