LM22676QMRX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22676QMRX-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator featuring an integrated power switch capable of delivering up to 3A output current. It operates with an input voltage range from 4.5V to 42V and provides a fixed 5V output. The device utilizes a buck topology with a switching frequency of 500kHz. It is housed in an 8-SO-PowerPAD package, designed for surface mount installation. The component supports an operating junction temperature range from -40°C to +125°C and holds AEC-Q100 qualification for automotive applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side power switches enable efficient step-down conversion without external synchronous rectifiers.
• Precision enable pin allows for precise control of the output voltage ramp-up sequence during startup.
• Fixed 500kHz switching frequency facilitates the use of compact external components to minimize solution size.
• Automotive-grade qualification ensures reliability and performance consistency under rigorous environmental conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power bus architectures in automotive electronic control units
• Point-of-load regulation for embedded systems requiring stable 5V supply
• Industrial equipment power management modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix matches QMRX-5.0/NOPB exactly to ensure the correct fixed 5V output and SO-PowerPAD-8 package configuration. Confirm AEC-Q100 qualification status if the application requires automotive grade compliance. Cross-reference the manufacturer part number against official Texas Instruments documentation to validate authenticity and avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required within a 4.5V to 42V input range. The 3A current capacity suits moderate load applications. The 8-SO-PowerPAD package offers thermal efficiency for space-constrained designs. Ensure the system design accommodates the 500kHz switching frequency requirements for inductor and capacitor selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22676-Q1 series of SIMPLE SWITCHER regulators. It shares core electrical characteristics with other variants in the family but differs in packaging and specific output voltage settings. The QMRX suffix indicates the specific reel-based tape and reel packaging format used for automated assembly processes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22676QMRE-5.0/NOPB: Identical electrical specifications with different packaging (Reel vs Cut Tape).

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LM22676QMRX-5.0/NOPB support adjustable output voltages?

No, this specific part number provides a fixed 5V output. Adjustable versions are available with different suffixes in the LM22676 series.

What is the maximum input voltage for this regulator?

The maximum input voltage supported by the LM22676QMRX-5.0/NOPB is 42V.