Texas Instruments

LM2673SD-12

LM2673SD-12 Description

The LM2673SD-12 is a fixed output voltage regulator from Texas Instruments, designed for high efficiency and performance in power management applications. This regulator is part of the SIMPLE SWITCHER® series, known for its ease of use and reliability. The LM2673SD-12 features a maximum input voltage of 40V and a minimum input voltage of 8V, making it suitable for a wide range of input voltage conditions. It provides a fixed output voltage of 12V and can deliver up to 3A of output current, ensuring robust power delivery for various electronic devices.

This regulator operates with a switching frequency of 260kHz, which helps in minimizing the size of external components while maintaining high efficiency. The LM2673SD-12 is designed for positive output configuration and does not employ synchronous rectification, simplifying the design process. It is housed in a 14-lead small outline no-lead (SON) package, which is ideal for surface mount applications, ensuring compact and reliable integration into modern electronic systems.

LM2673SD-12 Features

• Fixed Output Voltage: The LM2673SD-12 provides a fixed output voltage of 12V, ensuring stable power supply for applications requiring a consistent voltage level.
• Wide Input Voltage Range: With an input voltage range of 8V to 40V, regulator this can accommodate a variety of power sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 3A of output current, the LM2673SD-12 is suitable for applications requiring significant power.
• Buck Topology: Utilizing a buck converter topology, the regulator achieves high efficiency and compact design.
• High Switching Frequency: Operating at 260kHz, the LM2673SD-12 allows for the use of smaller inductors and capacitors, reducing the overall footprint of the power supply.
• Surface Mount Packaging: The 14-lead SON package is ideal for surface mount applications, ensuring reliable integration into modern electronic systems.
• Moisture Sensitivity Level 1: With an MSL rating of 1 (unlimited), the LM2673SD-12 is suitable for a wide range of manufacturing environments.
• REACH Compliance: The regulator is REACH unaffected, ensuring compliance with environmental and safety regulations.

LM2673SD-12 Applications

The LM2673SD-12 is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Industrial Equipment: Providing reliable power to control systems, sensors, and actuators in industrial environments.
• Telecommunications: Supplying power to base stations, routers, and other communication equipment.
• Automotive Electronics: Ensuring stable power supply to electronic control units (ECUs) and other automotive systems.
• Consumer Electronics: Powering devices such as set-top boxes, gaming consoles, and other high-current consumer electronics.
• Medical Devices: Providing stable power to diagnostic equipment, monitoring devices, and other medical electronics.

Conclusion of LM2673SD-12

The LM2673SD-12 is a robust and efficient power management solution from Texas Instruments, offering a fixed 12V output with a maximum current of 3A. Its wide input voltage range, high switching frequency, and compact surface mount packaging make it an ideal choice for a variety of applications. While the product is now obsolete, it remains a reliable option for existing designs and legacy systems. For new projects, designers may consider exploring alternative models within the SIMPLE SWITCHER® series to leverage the latest advancements in power management technology.