LM7805 Voltage Regulator IC | Fixed 5V Output for Arduino, DIY Electronics & Embedded Projects
The LM7805 is a popular 3-pin linear voltage regulator IC that outputs a constant 5V DC from a higher voltage source (typically 7V to 35V input). It’s widely used in electronics, embedded systems, Arduino projects, and DIY circuits to ensure stable 5V power supply for microcontrollers, sensors, and digital logic components.
With built-in protection features like thermal shutdown, short-circuit protection, and current limiting, the LM7805 is a reliable and inexpensive choice for hobbyists and engineers.
Whether you’re powering an Arduino UNO, a sensor array, or building your own regulated power supply, the LM7805 ensures your sensitive components receive a steady 5V.
ā Key Features:
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š¦ Package: TO-220 (3-pin)
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ā” Output Voltage: Fixed +5V
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š Input Voltage: 7V to 35V
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š” Output Current: Up to 1A (with adequate heatsink)
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š„ Protections: Over-temperature, short-circuit, and overcurrent protection
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š”ļø Thermal Overload Shutdown: Yes
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š§Æ Safe Operation Area (SOA) Protection: Built-in
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š§ Heatsink Compatible: Yes, for higher loads
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š ļø Mounting: Breadboard and PCB friendly
š§ Applications:
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Power supply for Arduino boards and Raspberry Pi accessories
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DIY regulated 5V power supply circuits
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Microcontroller and digital circuit power source
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Sensor modules and embedded system projects
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Conversion from 12V battery or adapter to 5V regulated power
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Onboard voltage regulation in robotics and IoT devices
š¦ Package Includes:
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1 x LM7805 Voltage Regulator IC (TO-220 Package)
š” Tips for Use:
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Always use input and output capacitors (typically 0.33µF on input, 0.1µF on output) for stability.
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For currents above 500mA, attach a heatsink to avoid overheating.
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Ensure input voltage is at least 2V higher than 5V (i.e., >7V) for proper regulation.
š Keywords:
LM7805 Pakistan, 5V voltage regulator IC, Arduino power regulator, TO-220 voltage IC, 7805 datasheet, 5V linear regulator, voltage regulator for breadboard, LM7805 with heatsink, 7805 IC for DIY projects.





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