LM2670S-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670S-ADJ 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 an adjustable output voltage from 1.2V to 37V. The device features a fixed switching frequency of 260kHz, enabling the use of small external components. It delivers up to 3A of output current in a TO-263 (D2PAK) package. The regulator includes thermal shutdown and current limit protection, functioning within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Fixed 260kHz switching frequency reduces component size
• Built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Battery-powered systems requiring efficient step-down conversion
• General-purpose 5V or 12V distribution networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout and electrical characteristics. Ensure the TO-263 package variant matches your PCB footprint requirements. Confirm RoHS compliance status if required by your manufacturing standards. Cross-reference the part number with official TI documentation to avoid counterfeit risks.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3A output current is required with an input voltage up to 40V. The adjustable output allows flexibility for various load voltages between 1.2V and 37V. Consider the TO-263 package for its thermal performance in space-constrained applications. Verify that the 260kHz frequency aligns with your EMI constraints and inductor selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x family of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. It integrates the power switch and control circuitry into a single monolithic IC. The family emphasizes ease of design with minimal external components. It serves as a robust solution for replacing linear regulators in higher power applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2670SX-ADJ/NOPB for identical specifications in the same package. Verify compatibility with LM2670SDX-ADJ if a VSON package is acceptable. Ensure substitute parts maintain the 3A current rating and 40V input limit.