LM2677T-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2677T-5.0 is a fixed-output step-down switching regulator from Texas Instruments, operating at a 260 kHz frequency. It delivers a fixed 5 V output with a maximum current of 5 A. The device accepts an input voltage range from 8 V to 40 V and utilizes a Buck topology. It is housed in a TO-220 package with seven pins, designed for through-hole mounting. The component operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side switch capable of delivering up to 5 A of output current.
• Includes internal compensation circuitry to minimize external component count.
• Features thermal shutdown protection to safeguard the device during overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulation for downstream linear regulators
• Battery-powered systems requiring efficient voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and RoHS compliance. Ensure the ordering part number matches the required package type and output voltage variant. Cross-reference manufacturer documentation for moisture sensitivity levels and recommended soldering profiles prior to assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required with high current capability. The TO-220 package suits applications needing robust thermal performance via heatsinking. Consider the 260 kHz switching frequency for balancing efficiency and passive component size. Verify that the input voltage remains within the specified 8 V to 40 V range for stable operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2677 series of SIMPLE SWITCHER power converters. The series offers a complete solution for buck conversion, integrating the controller, driver, and power switch. The LM2677T-5.0 specifically provides a fixed 5 V output, distinguishing it from adjustable variants or other fixed voltage options within the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for equivalent parts. Verify pin compatibility and electrical specifications before replacing.