LM22676QMRX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22676QMRX-ADJ/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 4.5V to 42V and delivers up to 3A of output current. The device features an adjustable output voltage, allowing flexibility in system design. It utilizes a fixed switching frequency of 500kHz and is housed in an 8-SO-PowerPAD package. Qualified under AEC-Q100 standards, it supports operation temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side switch enables compact buck converter designs without external components.
• Precision enable pin allows for precise sequencing and power management control.
• Fixed 500kHz switching frequency reduces the size of passive components required.
• Automotive qualification ensures reliability in demanding thermal and electrical environments.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power architectures in automotive systems
• Point-of-load regulation for industrial equipment
• Battery-powered applications requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'Q' indicates AEC-Q100 automotive qualification and 'ADJ' confirms adjustable output. Confirm 'MRX' denotes the SO-PowerPAD-8 tape-and-reel packaging. Ensure NOPB signifies lead-free/RoHS compliance. Cross-reference the full part number against official Texas Instruments documentation to confirm availability and specific manufacturing revisions before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an adjustable output voltage is required within the 4.5V to 42V input range. It is suitable for designs needing up to 3A continuous current with automotive-grade reliability. Compare with fixed-output variants if a specific voltage is sufficient. Consider the SO-PowerPAD-8 package for thermal performance and space constraints in surface-mount applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22676 family of SIMPLE SWITCHER regulators. It shares core topology and performance characteristics with other members like the LM22676QMRE-5.0/NOPB but differs in output configuration and packaging. The family is characterized by integrated switches and high efficiency, targeting both industrial and automotive markets.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM22676QMRE-ADJ/NOPB (same function, different reel packaging) or LM22676TJ-ADJ/NOPB (TO-263-7 package). Verify pinout compatibility and thermal requirements when substituting between package types.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM22676QMRX-ADJ/NOPB?

The maximum input voltage is 42V.

Does this component support automotive applications?

Yes, the 'Q' suffix indicates it is qualified to AEC-Q100 standards.

Is the output voltage fixed or adjustable?

The output voltage is adjustable, as indicated by the 'ADJ' suffix.