LM2676SDX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676SDX-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator manufactured by Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output at up to 3A. The device integrates a 0.5A, 45V rated switch and operates at a switching frequency of 260kHz. It utilizes current mode control for fast transient response and inherent line and load loop compensation. The component is housed in a 14-VSON package (5mm x 6mm) with an exposed thermal pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-voltage power switch to minimize external component count
• Utilizes current mode control architecture for stable operation and rapid transient response
• Features internal frequency compensation to simplify circuit design
• Includes thermal shutdown and current limit protection for robust performance

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Distributed power architectures requiring efficient step-down conversion
• Battery-powered equipment requiring extended runtime through high efficiency
• Industrial control systems operating within the specified voltage range

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' indicates tape and reel packaging when ordering. Confirm the 14-VSON package dimensions match the target PCB footprint. Ensure the 12V fixed output variant aligns with system requirements, as adjustable versions exist within the same family. Check for RoHS compliance status if required by project specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12V output is required from an 8V to 40V input source. The 3A current capability suits moderate load applications. Consider the 260kHz switching frequency for balancing component size and efficiency. The VSON package offers thermal advantages over larger packages but requires adequate copper area for heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2676 family of SIMPLE SWITCHER regulators. It shares core topology and control features with variants like the LM2676S and LM2676SX, differing primarily in package type and shipping format. The SDX variant specifically denotes the small outline no-lead package with reel packaging, distinguishing it from through-hole or standard surface-mount tube options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2676SD-12/NOPB: Identical electrical specifications and pinout; differs only in packaging format (tube vs. reel). LM2676SX-12/NOPB: Same functionality and output; uses TO-263 package instead of VSON, requiring different PCB layout considerations.