LM2670T-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670T-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 between 1.2V and 37V. The device features a fixed switching frequency of 260kHz and supports up to 3A output current. It utilizes a TO-220-5 through-hole package and functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for enhanced efficiency
• Fixed 260kHz switching frequency reduces external component size
• Adjustable output voltage capability via external resistors
• Built-in thermal shutdown and current limit 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 DC/DC power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'T' confirms the TO-220-5 through-hole package variant, distinct from surface-mount versions like 'S' or 'SD'. Confirm the 'ADJ' designation indicates the adjustable output version rather than a fixed voltage option. Ensure RoHS compliance status matches project requirements by checking the specific datasheet revision.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a through-hole mounting solution is required for high-current applications up to 3A. The 260kHz frequency allows for smaller inductors compared to lower-frequency regulators. Ensure the input voltage does not exceed 40V and that thermal management strategies are adequate for the TO-220 package under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x family of SIMPLE SWITCHER regulators, which includes variants with different current ratings such as the 1A LM2674, 3A LM2670, and 5A LM2677. These devices share similar control architectures but differ in internal switch capabilities and thermal performance characteristics based on their respective current ratings.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2670S-ADJ/NOPB (Surface Mount Version)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2670T-ADJ?

The maximum input voltage is 40V.

Does the LM2670T-ADJ include synchronous rectification?

Yes, the LM2670 series integrates synchronous rectification to improve efficiency.