LM2676SD-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676SD-ADJ/NOPB 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 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 is housed in a VSON-14 package and supports surface-mount installation. The regulator includes internal compensation for stability and offers thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated current-mode control architecture simplifies external component selection and ensures stable operation across varying load conditions.
• Fixed 260kHz switching frequency allows for the use of compact inductors and capacitors, reducing overall solution size.
• Internal frequency compensation eliminates the need for additional external compensation networks, streamlining circuit design.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems requiring 3A current capability
• Efficient step-down conversion from 12V or 24V bus voltages
• Battery-powered equipment requiring wide input voltage tolerance

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as NOPB for lead-free status and SD for the VSON-14 package. Confirm that the ADJ designation matches the requirement for an adjustable output configuration rather than a fixed voltage variant. Ensure compatibility with the specified thermal management requirements for the VSON-14 footprint during integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-efficiency buck converter is needed with an input voltage up to 40V and an output current of 3A. The adjustable output feature provides flexibility for custom voltage rails. Consider the VSON-14 package for space-constrained designs. Verify that the required output voltage falls within the 1.2V to 37V range supported by the feedback resistor network.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM267x family of SIMPLE SWITCHER regulators, which are designed for high-efficiency power conversion. The LM2676 specifically targets applications requiring higher current capacity compared to lower-current counterparts. The SD package variant offers a compact surface-mount solution suitable for modern PCB layouts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2676SX-ADJ/NOPB (TO-263 package)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2676SD-ADJ?

The maximum input voltage is 40V.

Does the LM2676SD-ADJ require external frequency compensation?

No, the device features internal frequency compensation, eliminating the need for external compensation components.