UA78L05ACPK

The UA78L05ACPK is a low-dropout 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 UA78L05ACPK delivers a fixed output voltage of 5V, making it suitable for powering various low-voltage devices and circuits.

2. Input Voltage Range: The regulator 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: One of the standout features of this regulator is its low dropout voltage, which is typically around 0.2V at full load. This means it can maintain regulation even when the input voltage is only slightly above the output voltage, enhancing efficiency.

4. Thermal Overload Protection: The UA78L05ACPK includes built-in thermal overload protection, which prevents damage to the device in case of overheating, ensuring reliability in various operating conditions.

5. Short-Circuit Protection: This regulator also features short-circuit protection, which safeguards the device and the connected load from damage in the event of a fault condition.

6. Package Type: The UA78L05ACPK is available in a compact TO-220 package, which is suitable for through-hole mounting. This package design allows for efficient heat dissipation, making it ideal for applications where thermal management is a concern.

7. Applications: Common applications for the UA78L05ACPK include powering microcontrollers, sensors, and other low-power digital circuits. It is also used in battery-powered devices where low quiescent current is essential.

8. Pin Configuration: The device typically has three pins: Input (Vin), Ground (GND), and Output (Vout). The pin configuration is designed for easy integration into various circuit designs.

Performance Characteristics:

• Output Current: Up to 100 mA
• Line Regulation: Typically 0.2% (max)
• Load Regulation: Typically 0.5% (max)
• Temperature Range: The device operates effectively over a wide temperature range, typically from -40°C to +125°C.

Conclusion:

The UA78L05ACPK from Texas Instruments is a reliable and efficient voltage regulator that is well-suited for a variety of electronic applications. Its combination of low dropout voltage, thermal protection, and compact packaging makes it an excellent choice for designers looking to ensure stable power delivery in their circuits.