LM2670SDX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670SDX-ADJ is a SIMPLE SWITCHER® high-efficiency 3A step-down DC/DC converter 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 and delivers up to 3A of output current through a single positive channel. It utilizes a VSON-14 surface-mount package and supports operation within a temperature range of -40°C to +125°C, with a typical quiescent current of 4.2mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for compact design
• Adjustable output voltage capability via external feedback network
• Fixed 260kHz switching frequency enabling small passive component selection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in 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 (NOPB) for RoHS compliance status when ordering. Confirm the reel quantity matches production requirements, as standard packaging may vary by distributor. Ensure the VSON-14 footprint aligns with the PCB layout specifications before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a 3A continuous load with an input voltage up to 40V. The VSON-14 package is suitable for space-constrained designs compared to larger TO-263 alternatives. Consider the 260kHz frequency trade-off between component size and electromagnetic interference when designing the filter stage.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x SIMPLE SWITCHER family, which includes variants like the LM2673 and LM2679. While sharing similar control logic and switching frequencies, the LM2670 is distinctively rated for 3A output current, differentiating it from lower-current or higher-current siblings within the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2670SD-ADJ/NOPB offers identical electrical performance in a leaded D2PAK (TO-263) package instead of the VSON-14 form factor.