UA78L05AILPE3

The UA78L05AILPE3 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 5 volts with a maximum output current of 100 mA. This component is particularly useful in applications where space is limited and efficiency is crucial.

Key Features:

1. Output Voltage: The UA78L05 provides a fixed output voltage of 5V, making it suitable for powering various low-voltage devices and circuits.

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 power supply configurations.

3. Low Dropout Voltage: The LDO design allows for a low dropout voltage, typically around 0.2V at full load, which means it can maintain regulation even when the input voltage is close to the output voltage.

4. Thermal Protection: The UA78L05 includes built-in thermal shutdown protection, which prevents the device from overheating and potentially damaging itself or the connected load.

5. Short-Circuit Protection: This regulator also features short-circuit protection, ensuring that it can handle fault conditions without sustaining damage.

6. Package Type: The UA78L05AILPE3 is available in a small, surface-mount package (SOT-223), which is ideal for compact designs and helps save board space.

7. Low Quiescent Current: The device operates with low quiescent current, making it suitable for battery-powered applications where power efficiency is essential.

8. Applications: Common applications include powering microcontrollers, sensors, and other low-power digital circuits, as well as in portable devices and battery-operated equipment.

Electrical Characteristics:

• Output Current: 100 mA maximum
• Dropout Voltage: Typically 0.2V at 100 mA
• Line Regulation: Typically 0.1%/V
• Load Regulation: Typically 0.1%/mA

Pin Configuration:

The UA78L05 typically has three pins:

• Input (Vin): The pin where the input voltage is applied.
• Ground (GND): The common ground connection.
• Output (Vout): The pin that provides the regulated 5V output.

Conclusion:

The UA78L05AILPE3 from Texas Instruments is a reliable and efficient voltage regulator that is well-suited for a variety of electronic applications. Its compact size, low dropout voltage, and built-in protection features make it an excellent choice for designers looking to implement a stable power supply in their circuits.