LMS3655AMRNLR

Voltage Regulators - DC DC Switching Regulators Overview

The LMS3655AMRNLR is a synchronous buck DC-DC step-down converter manufactured by Texas Instruments. It features an input voltage range up to 36 V and delivers a continuous output current of 5.5 A. The device operates at a fixed switching frequency of 400 kHz with ±10% tolerance. Output voltage is adjustable from 1 V to 20 V. It utilizes a 22-pin PowerVFQFN package (VQFN-HR-22) designed for surface-mount installation. The component supports pseudo-random spread spectrum technology to minimize electromagnetic interference and switch node ringing.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Optimized for high performance applications with low EMI and switch noise characteristics
• Innovative frequency foldback architecture enabling regulation from low input voltages
• Seamless transition capabilities between operating modes

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• ADAS sensor power supplies
• Body control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AMRNLR' against official Texas Instruments documentation to confirm pinout, thermal pad configuration, and tape-and-reel specifications. Ensure compatibility with your PCB footprint design for the VQFN-HR-22 package. Cross-reference the datasheet revision date to validate feature sets such as spread spectrum functionality.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 5.5 A synchronous buck regulator is required for automotive environments. It is suitable for applications demanding wide input voltage ranges up to 36 V and adjustable outputs. Consider its low EMI features if strict electromagnetic compatibility standards must be met in compact designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMS3655 family of synchronous buck regulators. The family is characterized by high efficiency and integrated protection features. Variants within the series may differ in package type or temperature rating, but share core electrical architectures optimized for automotive reliability and performance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LMS3655AQRNLRQ1 as a potential alternative with similar electrical specifications. Verify package compatibility and pin assignments before substitution. Consult official TI cross-reference tools for qualified replacements.