A89 STMicroelectronics L7805CV Positive Voltage Regulator, 5V 1.5A Fixed Output, TO-220 Package

The L7805CV is a monolithic fixed-voltage regulator designed to deliver a stable 5V output. Whether your input power comes from a battery, a wall adapter, or a larger unregulated power supply, the 7805 ensures your sensitive digital components receive exactly 5V. Housed in the rugged TO-220 package, it is capable of delivering over 1.5A of current when equipped with a proper heat sink.

Key Technical Specifications

• Function: Fixed Positive Voltage Regulator

• Output Voltage: +5V

• Output Current: Up to 1.5A

• Input Voltage Range: 7V to 35V (Optimal performance at 7V–12V)

• Package Type: TO-220 (Through-hole)

• Protection Features: Internal thermal-overload protection, safe-area compensation, and internal short-circuit current limiting.

Applications

• Microcontroller Power: The standard power source for Arduino, PIC, and AVR-based projects.

• Digital Logic: Providing clean power to 5V TTL and CMOS logic gates.

• USB Power: Used in DIY USB charging stations and portable power banks.

• On-Card Regulation: Eliminating noise and distribution problems associated with single-point regulation in large systems.

Why Choose the L7805CV?

• Bulletproof Design: It is virtually indestructible thanks to its internal thermal shutdown. If it gets too hot, it simply turns off instead of burning out.

• Simplicity: It requires only two small capacitors to function perfectly, making it the easiest way to regulate power.

• Industry Standard: Because it is so common, there is a massive amount of documentation and community support for using this chip in any project.

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