LM22673QMR-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22673QMR-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator featuring an integrated 3A power switch. It operates with an input voltage range of 4.5V to 42V and provides a fixed 5V output. The device utilizes a buck topology with a standard switching frequency of 500kHz. It is housed in an SO-PowerPAD-8 package, supports surface-mount installation, and is qualified under AEC-Q100 standards for automotive applications. The operational temperature range spans from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current 3A power switch within a compact SO-PowerPAD-8 package.
• Supports wide input voltage ranges up to 42V for versatile system integration.
• Includes internal frequency compensation and current limit protection features.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive electronics systems requiring AEC-Q100 qualification
• Industrial point-of-load regulation modules
• Distributed power supply architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QMR' indicates the reel packaging format and '5.0' confirms the fixed 5V output variant. Ensure compatibility with the SO-PowerPAD-8 thermal requirements during assembly. Confirm that the AEC-Q100 qualification meets the specific reliability standards required for the target application environment before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a wide input voltage range up to 42V. The integrated 3A capability suits moderate load applications without external passives. Consider the 500kHz switching frequency for balancing efficiency and passive component size. Verify that the SO-PowerPAD-8 package fits the available PCB real estate and thermal dissipation constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22673 SIMPLE SWITCHER family, designed for efficient DC-DC conversion. It serves as a drop-in replacement for older legacy regulators like the LM2573 series, offering improved performance and smaller footprint. The QMR suffix specifically denotes the tape-and-reel packaging configuration suitable for automated surface-mount assembly processes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22673QMRE-5.0/NOPB (Reel vs Tube packaging difference). LM22673QMR-ADJ/NOPB (Adjustable output variant).