STMicroelectronics

LM123K  

Linear & Switching Voltage Regulators

LM123K Description

The LM123K is a linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of 5V and a maximum output current of 3A. This device is housed in a Through Hole package, making it suitable for applications requiring robust mechanical stability and ease of integration into printed circuit boards. The LM123K is designed to operate with an input voltage range up to 20V, ensuring compatibility with a wide range of power sources. As a single regulator, it provides a positive output configuration, making it ideal for applications requiring a stable and reliable power supply.

LM123K Features

• Fixed Output Voltage: The LM123K provides a stable 5V output, ensuring consistent power delivery to connected devices.
• High Current Capability: With a maximum output current of 3A, the LM123K can support high-power applications, making it suitable for demanding electronic systems.
• Over Current and Over Temperature Protection: Integrated protection features safeguard the regulator and connected circuits from damage due to overcurrent and overtemperature conditions, enhancing reliability.
• Through Hole Mounting: The Through Hole package type ensures mechanical stability and ease of integration into various electronic assemblies.
• Wide Input Voltage Range: The regulator can operate with input voltages up to 20V, providing flexibility in power source selection.
• Compliance and Safety: The LM123K is REACH Unaffected and ROHS3 Compliant, ensuring it meets environmental and safety standards. It also has a Moisture Sensitivity Level (MSL) of 1, making it suitable for a wide range of manufacturing environments.
• Bulk Packaging: The device is available in bulk packaging, facilitating efficient procurement and inventory management for large-scale production.

LM123K Applications

The LM123K is well-suited for a variety of applications where a stable and reliable power supply is essential. Some specific use cases include:

• Industrial Control Systems: Providing stable power to control modules and sensors in industrial environments.
• Telecommunications Equipment: Ensuring reliable power delivery to communication devices and infrastructure.
• Consumer Electronics: Powering devices such as routers, modems, and other electronic peripherals.
• Automotive Electronics: Supporting power requirements for various automotive electronic systems.
• Medical Devices: Offering stable power for critical medical equipment and monitoring devices.

Conclusion of LM123K

The LM123K from STMicroelectronics is a robust linear voltage regulator that offers a fixed 5V output and a maximum output current of 3A. Its wide input voltage range, overcurrent and overtemperature protection features, and Through Hole mounting type make it a versatile and reliable choice for a variety of applications. While the product is now obsolete, its legacy continues to influence the design and performance of modern power management solutions. For those seeking a reliable and high-performance regulator, the LM123K remains a notable option, especially in applications requiring stable power delivery and robust protection mechanisms.

LM123K Documents

Download datasheets and manufacturer documentation for LM123K

Datasheets :

LMx23      

HTML Datasheet :

LMx23