LM2677S-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2677S-12/NOPB is a high-efficiency 5A step-down voltage regulator from 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, 55V rated switch and features a switching frequency of 260kHz. It utilizes current mode control for fast transient response and inherent line and load loop compensation. The regulator includes thermal shutdown and current limit protection. It is housed in a TO-263-7 package suitable for surface mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current power switch to minimize external component count
• Employs current mode control architecture for stable operation and rapid transient response
• Includes comprehensive protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supplies for embedded computing systems
• Distribution regulation boards in telecommunications infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required fixed output voltage variant. Confirm RoHS compliance status through official documentation before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from a higher input voltage rail up to 40V. It is appropriate for designs needing up to 5A continuous load current with minimal external passive components. Consider the TO-263-7 package for adequate thermal dissipation in space-constrained PCB layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2677 series of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. The series is characterized by its integrated power switch and simplified design process. The LM2677S-12/NOPB specifically offers a fixed 12V output option within this lineup.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2677S-12/NOPB.B serves as a direct equivalent within the same product family.