LM2670S-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670S-12 is a SIMPLE SWITCHER high-efficiency 3A step-down voltage regulator manufactured by Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output at up to 3A. The device features a 260kHz switching frequency, enabling the use of small external components. It is housed in a TO-263-7 (DDPAK) package and supports operation from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Fixed 12V output option simplifies design
• Wide input voltage range accommodates various supply sources
• Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Distributed power systems
• Battery-powered applications requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against the manufacturer datasheet to confirm pinout and electrical specifications. Ensure the package type matches the PCB footprint requirements. Check for moisture sensitivity levels if lead-free processing is required. Confirm availability through authorized distributors to avoid counterfeit parts.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is needed with up to 3A load current. It is suitable for designs prioritizing high efficiency and minimal external component count. Consider the TO-263-7 package for adequate thermal dissipation in space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2676 and LM2678 but offers specific current ratings and output configurations. The family is known for ease of use and robust performance in buck converter applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2670S-12/NOPB is the lead-free equivalent. LM2676S-12 is a similar 3A regulator but lacks synchronous rectification. LM2678S-12 is a 5A version with higher current capability.