L78L12ABUTR

The L78L12ABUTR is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It is designed to provide a stable output voltage of 12V with a maximum output current of 100mA. This component is particularly useful in applications where a reliable power supply is needed, such as in consumer electronics, automotive systems, and industrial equipment.

Key Features:

1. Output Voltage: The L78L12ABUTR provides a fixed output voltage of 12V, making it suitable for powering devices that require this specific voltage level.

2. Current Rating: It can deliver up to 100mA of output current, which is adequate for many low-power applications.

3. Low Dropout Voltage: The LDO design allows for a low dropout voltage, typically around 0.5V at full load, which means it can maintain regulation even when the input voltage is close to the output voltage.

4. Thermal Protection: The device includes built-in thermal shutdown protection, which prevents damage due to overheating by shutting down the regulator if the junction temperature exceeds a certain threshold.

5. Short-Circuit Protection: It features short-circuit protection, ensuring that the device can withstand overload conditions without sustaining damage.

6. Package Type: The L78L12ABUTR is available in a compact TO-220 package, which facilitates easy mounting on PCBs and provides good thermal dissipation.

7. Operating Temperature Range: The regulator operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for various environmental conditions.

8. Low Quiescent Current: The device has a low quiescent current, which is beneficial for battery-powered applications, as it helps to extend battery life.

9. Input Voltage Range: The L78L12ABUTR can accept a wide range of input voltages, typically from 14V down to the minimum required for regulation, allowing for flexibility in power supply design.

Applications:

• Consumer Electronics: Used in devices such as audio equipment, televisions, and home appliances.
• Automotive: Suitable for powering sensors, control units, and other electronic components in vehicles.
• Industrial Equipment: Employed in various industrial control systems and automation devices.
• Telecommunications: Can be used in communication devices and networking equipment.

Conclusion:

The L78L12ABUTR from STMicroelectronics is a versatile and reliable voltage regulator that provides a stable 12V output with low dropout and robust protection features. Its compact design and wide operating range make it an excellent choice for a variety of applications requiring efficient power management.