LMR33630CQRNXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR33630CQRNXRQ1 is an automotive-qualified synchronous step-down DC/DC converter from Texas Instruments. It operates with an input voltage range of 3.8 V to 36 V and delivers a continuous output current of 3 A. The device supports adjustable output voltages from 1 V to 24 V. Key electrical specifications include a quiescent current of 24 uA and a fixed switching frequency of 400 kHz. It functions within a temperature range of -40°C to +125°C and utilizes a VQFN-HR-12 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• Integrated synchronous rectification provides high efficiency across the load and line conditions.
• Wide input voltage capability accommodates various automotive bus architectures without external level shifting.

Voltage Regulators - DC DC Switching Regulators Applications

• Infotainment system power distribution
• Telematics control unit regulation
• Body control module voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'RQ1' confirms the reel packaging format and automotive qualification status. Ensure compatibility with the target PCB footprint for the VQFN-HR-12 package. Confirm that the application design accounts for the specified thermal operating limits and input voltage constraints defined in the official datasheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an automotive-rated buck regulator is required for systems demanding up to 3 A output current. It is suitable for designs needing a wide input voltage window starting at 3.8 V. Consider the fixed 400 kHz switching frequency for passive component sizing and EMI management strategies.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR33630 family of SIMPLE SWITCHER converters. It shares core topology with variants like LMR33630AQRNXTQ1 but differs in packaging and qualification suffixes. The family targets compact, high-efficiency power solutions for industrial and automotive applications requiring reliable voltage regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR33630AQRNXTQ1 serves as a functional equivalent within the same product family. Verify pinout compatibility and ensure the alternative variant meets the specific automotive qualification requirements of the target application.