LM22680QMRX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22680QMRX-ADJ/NOPB is an automotive-grade SIMPLE SWITCHER step-down voltage regulator from Texas Instruments. It integrates a power switch to deliver up to 2A output current with an input voltage range of 4.5V to 42V. The device features a fixed 500kHz switching frequency and adjustable output voltage between 1.285V and 37V. Packaged in an 8-SO PowerPAD, it operates within a temperature range of -40°C to +125°C and holds AEC-Q100 qualification for automotive reliability.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive grade reliability certified under AEC-Q100 standards
• Integrated high-side N-channel power switch for simplified design
• Fixed internal switching frequency reduces external component count
• Adjustable output voltage allows flexible system configuration

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics modules
• Industrial DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QMRX' indicates tape-and-reel packaging distinct from 'QMR'. Confirm AEC-Q100 qualification status matches project requirements. Ensure the ADJ variant is selected for adjustable output needs rather than fixed voltage options. Check datasheet for thermal performance limits in final enclosure designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when automotive certification is mandatory and input voltages exceed standard 36V limits. The integrated switch simplifies layout compared to discrete solutions. Consider the 500kHz frequency for balancing efficiency and passive size. Verify that the 2A continuous current meets peak load demands without excessive thermal derating.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22680 SIMPLE SWITCHER family, designed for robust buck conversion. It shares topology with the LM2676 but offers higher input voltage tolerance. The Q-series designation specifically denotes automotive qualification, distinguishing it from commercial variants like the LM22680MRE.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22680MRE-ADJ/NOPB serves as the commercial equivalent without automotive qualification. LM2676 series parts offer similar functionality but with lower input voltage ratings. Cross-reference pinouts and thermal pads before substitution.