LM2675M-5.0/NOPB – 5V 1A Step-Down Switching Regulator – Texas Instruments

Streamline your power supply design with the LM2675M-5.0/NOPB, a high-efficiency buck regulator from Texas Instruments. This SIMPLE SWITCHER® IC delivers a stable 5V output at up to 1A from input voltages ranging from 6.5V to 40V, making it ideal for industrial, automotive, and embedded systems where robust voltage conversion is essential. Benefit from PCX’s guaranteed genuine components, lightning-fast shipping, and dedicated technical support.

Key Features

• Fixed 5V Output with ±2% voltage accuracy
• Wide Input Range: 6.5V to 40V DC
• High Efficiency: Up to 96% (reducing thermal stress)
• 1A Continuous Output Current
• 260kHz Switching Frequency (enables smaller external components)
• Industrial Temperature Range: -40°C to +125°C
• Surface-Mount Design: 8-SOIC package for compact PCB layouts

Technical Details

This monolithic buck converter uses a fixed-frequency PWM topology requiring minimal external components. It features internal frequency compensation, a fixed-frequency oscillator (260kHz), soft-start, and thermal shutdown protection. The non-synchronous rectification design achieves high efficiency across the operating range. Housed in an industry-standard 8-SOIC package (3.90mm width), it’s optimized for automated assembly and space-constrained applications.

Typical Applications

• Industrial control systems and PLCs
• Automotive infotainment and telematics
• Embedded computing and single-board computers
• Distributed 12V/24V bus power supplies
• Battery-powered equipment and chargers

About Texas Instruments

Texas Instruments (TI) is a global semiconductor leader renowned for innovation in analog and embedded processing technologies. With over 90 years of industry experience, TI sets the benchmark for quality and reliability in power management ICs. Their rigorous manufacturing standards and continuous R&D investment ensure components meet stringent automotive, industrial, and commercial requirements.

TI’s SIMPLE SWITCHER® series, which includes the LM2675 family, simplifies DC-DC converter design through optimized integration and comprehensive design tools. This commitment to engineer-focused solutions makes TI a trusted partner for mission-critical applications worldwide.

About DC-DC Switching Regulators

DC-DC switching regulators efficiently convert one DC voltage level to another using high-frequency switching techniques. Unlike linear regulators, they minimize power loss as heat, making them essential for high-current or battery-dependent systems. Buck (step-down) regulators specifically lower input voltage to a stable, lower output level with superior efficiency—often exceeding 90%.

These ICs are fundamental in modern electronics, enabling power optimization in devices ranging from IoT sensors to server racks. Key advantages include compact size, thermal performance, and adaptability to fluctuating input sources like batteries or unregulated adapters, ensuring consistent operation under variable conditions.

Packaging Options

This product ships in protective tube packaging, ensuring secure transit and handling. For volume production needs, contact PCX support for custom packaging solutions.

Frequently Asked Questions

Q: What is the typical efficiency of this regulator at 12V input?
A: Efficiency exceeds 90% under typical 12V-in/5V-out, 1A load conditions.

Q: Does this IC require external compensation components?
A: No, the LM2675 features internal frequency compensation for simplified design.

Q: Can it withstand automotive load-dump transients?
A: Yes, the 40V maximum input rating supports 12V automotive systems per ISO 7637.

Q: Is a heatsink necessary for full 1A operation?
A: Typically not—the 8-SOIC’s thermal performance suffices with adequate PCB copper pour.

Q: Are evaluation modules available for this part?
A: Yes, Texas Instruments offers the LM2675 evaluation board; contact PCX for details.

Q: What protection features are included?
A: Integrated thermal shutdown, current limit, and soft-start prevent damage during faults.

Image shown is representational. Refer to the LM2675M-5.0/NOPB datasheet for exact specifications.

Optimize your power design with confidence—order genuine LM2675M-5.0/NOPB from PCX today for same-day shipping and expert support!