L78M05CDT-TR

The L78M05CDT-TR is a linear voltage regulator manufactured by STMicroelectronics, designed to provide a stable output voltage of 5V with a maximum output current of 500mA. This component is part of the L78 series of voltage regulators, which are known for their reliability and ease of use in various electronic applications.

Key Features:

1. Output Voltage: The L78M05CDT-TR delivers a fixed output voltage of 5V, making it suitable for powering microcontrollers, sensors, and other low-power devices that require a stable voltage supply.

2. Output Current: It can supply up to 500mA of output current, which is adequate for many low to medium power applications.

3. Input Voltage Range: The device operates with an input voltage range typically from 7V to 35V. This wide range allows it to be used in various power supply configurations.

4. Thermal Protection: The L78M05CDT-TR includes built-in thermal overload protection, which prevents the device from overheating and ensures safe operation under varying load conditions.

5. Short-Circuit Protection: It features short-circuit protection, which safeguards the regulator and the connected load in case of a fault condition.

6. Low Dropout Voltage: The dropout voltage is relatively low, typically around 2V, which means it can maintain regulation even when the input voltage is close to the output voltage.

7. Package Type: The L78M05CDT-TR is available in a TO-220 package, which is a standard package for power devices. This package provides good thermal dissipation and is easy to mount on a PCB.

8. Operating Temperature Range: The device is rated for operation in a temperature range of -40°C to +125°C, making it suitable for a variety of environments, including industrial applications.

9. Applications: Common applications for the L78M05CDT-TR include power supplies for microcontrollers, battery-powered devices, and other electronic circuits that require a stable 5V supply.

Electrical Characteristics:

• Input Voltage (Vin): 7V to 35V
• Output Voltage (Vout): 5V
• Output Current (Iout): Up to 500mA
• Dropout Voltage (Vdo): Typically 2V
• Quiescent Current (Iq): Low, typically in the range of a few mA
• Ripple Rejection: High, ensuring a clean output voltage

Conclusion:

The L78M05CDT-TR from STMicroelectronics is a versatile and reliable voltage regulator that is widely used in various electronic applications. Its combination of features, including thermal and short-circuit protection, low dropout voltage, and a wide input voltage range, makes it an excellent choice for designers looking for a robust solution to power their circuits with a stable 5V output.