The LM138K is a robust and reliable linear voltage regulator designed and manufactured by STMicroelectronics, a global leader in semiconductor solutions. This high-performance component is specifically engineered to maintain a constant voltage level, making it an essential part of power management systems in a wide array of electronic devices.

Key Features

• Output Voltage Range: The LM138K offers an adjustable output voltage range from 1.2V to 32V, which allows for flexibility in various applications.
• High Current Output: It is capable of delivering an output current of up to 5A, making it suitable for demanding applications that require a steady and robust power supply.
• Thermal Overload Protection: The device includes thermal overload protection that shuts down the regulator should the internal temperature exceed safe operating limits, thereby ensuring the longevity of both the regulator and the device it powers.
• Short Circuit Protection: In addition to thermal protection, the LM138K is equipped with short circuit protection, which prevents damage to the regulator and the application in case of a fault condition.
• Low Quiescent Current: The quiescent current is the current used by the voltage regulator when it is not supplying any load. The LM138K boasts a low quiescent current, which enhances its energy efficiency.

Applications

The versatility of the LM138K voltage regulator makes it suitable for a diverse range of applications, including:

• Linear power supplies
• Constant current regulators
• Battery chargers
• Automotive electronics
• Instrumentation systems
• Hi-Fi audio equipment

Quality and Reliability

STMicroelectronics is committed to delivering high-quality products. The LM138K voltage regulator is no exception, as it is built to meet rigorous standards for performance and reliability. This component is housed in a robust TO-3 package, which is known for its durability and excellent thermal performance.

Conclusion

Whether you are developing power supplies, designing automotive electronics, or working on high-fidelity audio systems, the LM138K from STMicroelectronics provides a reliable and efficient solution for your voltage regulation needs. Its combination of features, protection mechanisms, and flexibility make it an indispensable component for engineers and designers looking to create stable and robust electronic products.