LM22673QMRE-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22673QMRE-5.0/NOPB is a fixed-output step-down switching voltage regulator from Texas Instruments' SIMPLE SWITCHER family. It integrates a 3A power switch and operates with an input voltage range of 4.5V to 42V, providing a stable 5V output. The device utilizes a buck topology with a fixed 500kHz switching frequency. It is housed in an SO-PowerPAD-8 surface-mount package and supports operation temperatures from -40°C to +125°C. Certified under AEC-Q100 for automotive applications, it features low quiescent current of 3.4mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current 3A internal power switch for efficient step-down conversion
• Includes built-in adjustable soft-start and cycle-by-cycle current limit protection
• Features precision enable threshold for accurate power sequencing control
• Operates at a fixed 500kHz switching frequency to minimize external component size

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and body electronics systems
• Industrial point-of-load regulation modules
• Distributed power architectures requiring 5V rails
• Battery-powered equipment with wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as NOPB and RE to ensure correct packaging and lead-free compliance. Confirm that the specific revision matches the required AEC-Q100 qualification level for your target application environment. Check datasheet revisions for any updates regarding thermal performance or recommended external component values before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 5V output is required with up to 3A load capability. Ensure the input voltage does not exceed the 42V maximum rating. Consider the SO-PowerPAD-8 package for its thermal dissipation advantages in compact designs. Verify that the 500kHz frequency aligns with EMI constraints and inductor selection requirements for the specific system design.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM22673 series of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. The 'QMRE' designation indicates the specific SO-PowerPAD-8 package variant, while '-5.0' specifies the fixed 5V output version. The '/NOPB' suffix denotes a lead-free and RoHS-compliant manufacturing process, distinguishing it from older non-compliant variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22673QMR-5.0/NOPB offers the same electrical specifications but differs in tube packaging compared to the cut-tape/reel configuration of the QMRE variant.