LM2679T-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2679T-5.0/NOPB is a Texas Instruments fixed-output step-down switching voltage regulator featuring a 5V output and 5A maximum current capability. It operates within an input voltage range of 8V to 40V with a standard switching frequency of 260kHz. The device utilizes a TO-220-7 through-hole package, ensuring robust thermal performance for high-power applications. Designed for efficiency up to 84%, it includes internal compensation and a shutdown feature. The operational temperature range spans from -40°C to +125°C, supporting reliable function in demanding industrial environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology with internal compensation for simplified design
• Built-in thermal shutdown protection for enhanced reliability
• Low quiescent current operation for improved standby efficiency
• Fixed 5V output option eliminating external resistor networks

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supply systems requiring regulated 5V rails
• Embedded controller logic power distribution
• Peripheral interface circuit powering
• Automotive electronics subsystems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the TO-220-7 package variant matches the required through-hole mounting constraints. Ensure the fixed 5.0V output designation aligns precisely with the target system voltage requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required alongside high current capacity exceeding typical linear regulators. The through-hole TO-220 package is suitable for applications prioritizing thermal dissipation over board space constraints. Consider the 260kHz switching frequency for balancing component size against electromagnetic interference levels in the target design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2679 SIMPLE SWITCHER family, designed for straightforward DC-DC conversion tasks. It serves as a robust alternative to linear regulators in higher power scenarios. The series offers various output voltages and adjustable options, providing flexibility for diverse power management needs across consumer and industrial electronic product lines.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2679T-3.3/NOPB provides a 3.3V fixed output variant within the same package and current class. LM2679S-ADJ/NOPB offers an adjustable output version in a surface-mount TO-263 package. Cross-reference datasheets to ensure pinout compatibility and thermal characteristics match the existing design infrastructure.