LMR33630AQRNXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR33630AQRNXRQ1 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 features a fixed switching frequency of 400 kHz and supports output voltages from 1 V to 24 V. It has a maximum quiescent current of 24 uA and functions within a junction temperature range of -40°C to +125°C. The component is housed in a 12-pin VQFN-HR package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for durability in vehicle environments
• Integrated synchronous rectification provides high efficiency across the load range
• Wide input voltage capability accommodates various automotive power bus conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Instrument cluster power distribution
• Body control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape-and-reel specifications. Ensure the part number matches the required AEC-Q100 qualification level for your target application. Cross-reference the manufacturer datasheet for exact ordering information and environmental compliance details before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring a 3 A buck converter with wide input voltage tolerance. The fixed 400 kHz frequency allows for optimized external component sizing. Consider the thermal performance of the VQFN-HR package relative to your PCB layout constraints and ambient operating temperatures.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR33630 family of SIMPLE SWITCHER converters. It shares architectural similarities with other members like the LMR33620 but offers higher current capacity. The family is designed to simplify power design for automotive electronics through integrated protection features and compact packaging solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LMR33630APCQRNXRQ1 is a documented variant within the same product line. Verify pinout compatibility and electrical parameter alignment before substitution.