Texas Instruments

LM2676S-3.3

LM2676S-3.3 Description

The LM2676S-3.3 is a high-performance, fixed-output voltage regulator designed by Texas Instruments, part of the SIMPLE SWITCHER® series. This IC is specifically engineered for applications requiring a stable 3.3V output voltage with a maximum output current of 3A. It features a wide input voltage range, operating efficiently from 8V to 40V, making it suitable for various power management scenarios. The regulator employs a buck topology and operates at a switching frequency of 260kHz, ensuring high efficiency and minimal power loss. The LM2676S-3.3 is housed in a surface-mount package, specifically a DDPAK, which is ideal for compact and space-constrained designs. It is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. The product is currently in the "Last Time Buy" status, indicating it is a reliable choice for legacy systems or projects with established requirements.

LM2676S-3.3 Features

The LM2676S-3.3 offers several key features that set it apart from similar models:

• Fixed Output Voltage: The regulator provides a stable 3.3V output, ensuring consistent power delivery to sensitive electronics.
• Wide Input Voltage Range: With an input voltage range of 8V to 40V, it can accommodate a variety of power sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 3A, it is suitable for applications requiring significant power.
• Buck Topology: Utilizing a buck converter topology, it achieves high efficiency and low power dissipation, crucial for energy-efficient designs.
• 260kHz Switching Frequency: This frequency ensures fast transient response and minimal ripple, contributing to stable performance.
• Surface Mount Packaging: The DDPAK package is ideal for surface-mount technology (SMT), facilitating compact and reliable board designs.
• Environmental Compliance: Being REACH unaffected and RoHS3 compliant, it meets global environmental regulations, ensuring safe and sustainable use.
• Moisture Sensitivity Level (MSL) 3: Suitable for manufacturing processes with a 168-hour exposure limit, it maintains integrity in various environmental conditions.

LM2676S-3.3 Applications

The LM2676S-3.3 is well-suited for a range of applications where stable power delivery and high efficiency are critical:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other embedded components requiring a stable 3.3V supply.
• Telecommunications: Suitable for powering communication modules and base stations where reliability and efficiency are paramount.
• Industrial Automation: Provides stable power for PLCs, motor controllers, and other industrial equipment operating in harsh environments.
• Medical Devices: Ensures reliable power delivery for medical instruments and diagnostic equipment, where precision and stability are essential.
• Consumer Electronics: Can be used in devices such as routers, modems, and set-top boxes, contributing to their energy efficiency and performance.

Conclusion of LM2676S-3.3

The LM2676S-3.3 is a robust and versatile power management IC that offers a reliable solution for applications requiring a stable 3.3V output. Its wide input voltage range, high output current capability, and efficient buck topology make it a standout choice in the power management landscape. The surface-mount packaging and environmental compliance further enhance its suitability for modern electronics. While it is currently in the "Last Time Buy" status, the LM2676S-3.3 remains an excellent option for projects with established power requirements or those needing a proven, high-performance regulator.