LM7805 Voltage Regulator 5V
The LM7805 Voltage Regulator is a popular member of the 78XX series of fixed linear voltage regulators. Designed to output a regulated +5V, it simplifies power design for DC power supplies, embedded systems, and development boards by providing clean, stable voltage from unregulated sources ranging from 7V to 35V.
Built into a TO-220 package, this IC offers built-in thermal overload protection, short-circuit safety, and safe-area compensation to prevent damage under fault conditions. It is an essential component in circuits where regulated 5V power is required, such as logic circuits, sensors, and communication modules.
π Technical Details
| Specification | Details |
|---|---|
| Output Voltage | 5V (Fixed) |
| Input Voltage Range | 7V β 35V |
| Max Output Current | 1A to 1.5A (with heatsink) |
| Dropout Voltage | 2V (typical) |
| Package Type | TO-220 |
| Output Type | Fixed |
| Internal Protection | Thermal, Short-circuit |
| Operating Temperature | -40Β°C to +125Β°C |
π‘ Use Cases & Applications
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βοΈ Microcontroller Power Supply
Ideal for powering logic-level devices like Raspberry Pi peripherals or ESP modules from unregulated DC sources. -
π Bench Power Supply
Used in lab setups for regulated 5V rails in power supply design. -
π§ DIY Projects & Robotics
Power servo motors, IR sensors, or drone control boards requiring 5V logic. -
π¦ Industrial Electronics
Maintains stable voltage in sensor-driven automation systems and signal conditioning units. -
π‘ Communication Modules
Supports modules like GSM, GPS, or Bluetooth, which require a clean 5V source for reliable operation.
π οΈ Pair With
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β‘ Power Supplies β Input sources and wall adapters.
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𧩠Electronic Components β Capacitors, diodes, and support components.
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π§° Tools & Accessories β Perfect your setup with soldering tools and test instruments.
π₯ YouTube Tutorial
πΊ How to Use LM7805 for a 5V Power Supply
π Watch Tutorial
β οΈ Precautions & Tips
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π‘οΈ Use a heatsink when drawing more than 500mA to prevent overheating.
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π Place input and output capacitors (e.g., 0.33ΞΌF and 0.1ΞΌF) close to the regulator for stability.
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π« Donβt exceed 35V input β may damage the IC.
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π Ensure ground continuity in your PCB design to avoid noise issues.
π Summary & Call-to-Action
The LM7805 Voltage Regulator IC offers a clean, stable 5V output and is trusted in countless electronics applications. It is ideal for both beginners and engineers needing a cost-effective power regulation solution.
π Available now at Electroway β your hub for electronics innovation.
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