Texas Instruments

LM2679S-5.0  

DC Switching Voltage Regulators

LM2679S-5.0 Description

The LM2679S-5.0 is a high-performance, fixed-output voltage regulator from Texas Instruments, designed for demanding power management applications. This device is part of the SIMPLE SWITCHER® series, renowned for its ease of use and robust performance. The LM2679S-5.0 operates within an input voltage range of 8V to 40V, making it suitable for a wide array of applications where input voltage variability is a concern. It provides a stable 5V output at a maximum current of 5A, ensuring reliable power delivery to critical components.

The regulator employs a buck topology, which is highly efficient and capable of handling high power densities. With a switching frequency of 260kHz, the LM2679S-5.0 balances efficiency and size, making it ideal for compact designs. The device is housed in a surface-mount DDPak package, which enhances thermal performance and is compatible with automated assembly processes.

LM2679S-5.0 Features

• Fixed Output Voltage: The LM2679S-5.0 offers a fixed 5V output, eliminating the need for external voltage-setting resistors and simplifying design.
• Wide Input Voltage Range: With an input voltage range of 8V to 40V, this regulator is highly versatile and can accommodate a variety of power sources.
• High Output Current: Capable of delivering up to 5A, the LM2679S-5.0 is suitable for applications requiring significant power.
• Efficient Buck Topology: The buck converter design ensures high efficiency, reducing power loss and improving overall system performance.
• High Switching Frequency: Operating at 260kHz, the regulator balances efficiency with compact size, making it ideal for space-constrained designs.
• Surface-Mount Package: The DDPak package is designed for surface-mount technology, enhancing thermal performance and ease of integration.
• Compliance and Reliability: The LM2679S-5.0 is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 3, suitable for a 168-hour exposure period.

LM2679S-5.0 Applications

The LM2679S-5.0 is well-suited for a variety of applications where reliable power management is crucial. Its fixed 5V output and high current capability make it ideal for:

• Telecommunications Equipment: Providing stable power to critical components in base stations, routers, and switches.
• Industrial Control Systems: Ensuring reliable operation of PLCs, motor controllers, and other industrial devices.
• Automotive Electronics: Powering infotainment systems, electronic control units, and other automotive applications.
• Medical Devices: Supplying stable power to diagnostic equipment, monitoring devices, and other medical electronics.
• Consumer Electronics: Ideal for powering high-current devices such as gaming consoles, high-end audio equipment, and other consumer products.

Conclusion of LM2679S-5.0

The LM2679S-5.0 from Texas Instruments is a robust and versatile power management solution, offering a fixed 5V output at up to 5A. Its wide input voltage range, efficient buck topology, and high switching frequency make it an excellent choice for a variety of applications. The surface-mount DDPak package ensures ease of integration and enhanced thermal performance. With its compliance to REACH and RoHS3 standards, the LM2679S-5.0 is a reliable and environmentally friendly option for power management needs.

LM2679S-5.0 Documents

Download datasheets and manufacturer documentation for LM2679S-5.0

EOL :

Product Discontinuance Notification (PDF)      

Images :

Mechanical Outline Drawing       Function Diagram      

PCN :

Process Change Notification (PDF)      

Models :

LM2679S-5.0 Symbol & Footprint by SnapMagic      

SPICE Models :

LM2679 Unencrypted PSpice Transient Model       LM2679 PSpice Transient Model