L78L05ABUTR

The L78L05ABUTR is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It is designed to provide a stable output voltage of 5V with a maximum output current of 100mA. This component is particularly useful in applications where space is limited, as it comes in a compact surface-mount package.

Key Features:

1. Output Voltage: The L78L05ABUTR provides a fixed output voltage of 5V, making it suitable for powering various electronic devices and circuits that require a stable voltage supply.

2. Input Voltage Range: The device can accept a wide input voltage range, typically from 7V to 20V, allowing it to be used in various applications with different power supply configurations.

3. Low Dropout Voltage: One of the standout features of the L78L05ABUTR is its low dropout voltage, which is typically around 1.2V. This means that it can maintain regulation even when the input voltage is only slightly higher than the output voltage, making it efficient for battery-powered applications.

4. Thermal Protection: The regulator includes built-in thermal overload protection, which prevents damage to the device in case of overheating. This feature enhances the reliability and longevity of the component in various operating conditions.

5. Short-Circuit Protection: The L78L05ABUTR is designed with short-circuit protection, ensuring that the device can withstand fault conditions without sustaining damage.

6. Compact Package: The L78L05ABUTR is available in a small SOT-89 package, which is ideal for space-constrained applications. Its compact size allows for easy integration into printed circuit boards (PCBs).

7. Low Quiescent Current: The device features low quiescent current consumption, making it suitable for battery-operated devices where power efficiency is critical.

8. Applications: The L78L05ABUTR is commonly used in various applications, including:

   • Power supplies for microcontrollers and digital circuits
   • Battery-powered devices
   • Portable electronics
   • Automotive applications
   • Consumer electronics

Electrical Characteristics:

• Output Current: 100mA (maximum)
• Output Voltage: 5V (fixed)
• Dropout Voltage: Typically 1.2V
• Input Voltage Range: 7V to 20V
• Operating Temperature Range: -40°C to +125°C

Conclusion:

The L78L05ABUTR from STMicroelectronics is a versatile and reliable voltage regulator that provides a stable 5V output with low dropout and compact packaging. Its protective features and efficiency make it an excellent choice for a wide range of electronic applications, particularly where space and power efficiency are paramount.