LMR33620BQRNXTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR33620BQRNXTQ1 is an automotive-grade synchronous step-down voltage 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 2 A. The device features a fixed 5 V output and integrates a 400 kHz switching frequency. It utilizes a 12-VQFN-HR package rated for junction temperatures between -40°C and +125°C. Certified under AEC-Q100, it supports PFM mode operation and includes adjustable output capabilities within its family architecture.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Integrated synchronous rectification for high efficiency
• Ultra-low electromagnetic interference design
• Fixed 5 V output configuration

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix BQRNXTQ1 against the manufacturer datasheet to confirm the fixed 5 V output and 400 kHz frequency parameters. Ensure the ordering part number matches the required AEC-Q100 qualification level and 12-VQFN-HR package type. Cross-reference the revision history for any recent design changes or assembly site updates before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V rail is required for automotive applications demanding AEC-Q100 certification. The 2 A output capability suits moderate load scenarios in body electronics. Consider the 400 kHz switching frequency for balancing EMI performance and passive component size. Verify thermal requirements for the 12-VQFN-HR package in confined automotive enclosures.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR33620 SIMPLE SWITCHER family, designed for robust DC-DC conversion in harsh environments. The Q1 suffix denotes automotive qualification, distinguishing it from commercial variants. It complements higher-current models like the LMR33630 series while offering a specialized fixed-output option for standard logic and peripheral supply rails.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR33620CQ5RNXTQ1 offers identical electrical specifications and automotive qualification but may differ in manufacturing lot or minor packaging variations. Direct substitution requires verifying pinout compatibility and thermal characteristics.