LM2678SDX-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2678SDX-12 is a high-efficiency 5A step-down voltage regulator from the Texas Instruments SIMPLE SWITCHER family. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output. The device integrates a 0.5A, 60V switch and features a switching frequency of 260kHz. It utilizes current mode control for fast transient response and includes thermal shutdown and current limit protection. The component is housed in a VSON-14 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5A, 60V power switch for simplified design
• Utilizes current mode control architecture for rapid transient response
• Includes comprehensive protection against thermal overload and excessive current

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power systems
• On-board DC/DC conversion for industrial equipment
• High-efficiency step-down regulation for battery-powered devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SDX' indicates tape-and-reel packaging configuration distinct from tube variants. Confirm the '12' designation corresponds to the fixed 12V output version. Ensure compatibility with VSON-14 footprint requirements during procurement planning.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 12V output is required from an 8V to 40V input source. It is suitable for applications demanding up to 5A continuous load current with high efficiency. Consider the VSON-14 package constraints for PCB layout and thermal management compared to TO-263 alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2678 series of SIMPLE SWITCHER regulators, designed for high-efficiency step-down conversion. The SDX variant specifically denotes the surface-mount VSON-14 package form factor. It shares core electrical characteristics with other LM2678 pinouts but differs in physical housing and reel packaging specifications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2678SD-12/NOPB serves as a direct functional equivalent with identical electrical parameters, differing primarily in packaging format (tube vs. reel). Verify that the replacement matches the required supply chain packaging preferences.