L7805CV

The L7805CV is a popular linear voltage regulator manufactured by STMicroelectronics, designed to provide a stable output voltage of 5 volts. It is part of the L78xx series of voltage regulators, which are widely used in various electronic applications due to their simplicity and reliability.

Key Features:

1. Output Voltage: The L7805CV delivers a fixed output voltage of 5V, making it ideal for powering microcontrollers, sensors, and other low-voltage devices.

2. Input Voltage Range: The device can accept a wide input voltage range, typically from 7V to 35V. This allows it to be used in various power supply configurations.

3. Output Current: The L7805CV can provide a maximum output current of 1.5A, which is sufficient for many applications, though thermal considerations must be taken into account for higher loads.

4. Thermal Protection: The regulator includes built-in thermal overload protection, which prevents damage due to overheating. If the junction temperature exceeds a certain threshold, the regulator will shut down until it cools down.

5. Short-Circuit Protection: The L7805CV is designed with short-circuit protection, ensuring that it can withstand accidental short circuits without sustaining damage.

6. Package Type: The L7805CV is typically available in a TO-220 package, which features a metal tab for heat dissipation. This package design allows for easy mounting on a heatsink to manage thermal performance effectively.

7. Dropout Voltage: The dropout voltage of the L7805CV is relatively low, typically around 2V, which means that the input voltage must be at least 7V for the output to remain stable at 5V.

8. Ripple Rejection: The device offers good ripple rejection, which helps to maintain a stable output voltage even when the input voltage has fluctuations.

9. Application Areas: The L7805CV is commonly used in power supply circuits, battery chargers, and various consumer electronics. It is also suitable for use in automotive applications and industrial equipment.

Electrical Characteristics:

• Input Voltage (Vin): 7V to 35V
• Output Voltage (Vout): 5V
• Output Current (Iout): Up to 1.5A
• Dropout Voltage (Vdrop): Typically 2V
• Operating Temperature Range: -40°C to +125°C

Conclusion:

The L7805CV from STMicroelectronics is a robust and versatile voltage regulator that provides a reliable 5V output for a variety of electronic applications. Its combination of thermal and short-circuit protection, along with a wide input voltage range, makes it a preferred choice for engineers and hobbyists alike. Whether used in simple circuits or more complex systems, the L7805CV is a dependable component for ensuring stable power delivery.