LM2670S-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670S-5.0 is a SIMPLE SWITCHER high-efficiency 3A step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed 5V output at up to 3A. The device integrates a 125kHz switching frequency, synchronous rectification for improved efficiency, and thermal shutdown protection. Packaged in a TO-263 (DPAK) case, it supports surface-mount installation and functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification to maximize power conversion efficiency
• Includes internal compensation and current limit for simplified design
• Features thermal shutdown protection for robust operation under overload

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient step-down conversion
• Industrial control system power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm package type and electrical tolerances. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the ordering part number with official TI documentation to avoid discrepancies in pinout or thermal characteristics during procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a fixed 5V output is required with up to 3A load capability. It is suitable for designs needing high efficiency without external feedback components. Consider the TO-263 package for adequate thermal dissipation in space-constrained applications compared to smaller footprints.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM267x SIMPLE SWITCHER family, designed for straightforward DC-DC conversion. It replaces older linear regulators by offering higher efficiency and reduced heat generation. The series is widely used in general-purpose power management applications requiring reliable step-down performance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM2670S-ADJ/NOPB for adjustable output variants. For higher current needs, consider the LM2677 series. Verify pin compatibility and thermal performance when transitioning between different packages within the same functional family.