LMR33620CQ3RNXTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR33620CQ3RNXTQ1 is an automotive-grade SIMPLE SWITCHER synchronous buck converter from Texas Instruments. It operates with a 3.8-V to 36-V input range and delivers up to 2-A output current. The device features ultra-low EMI capabilities and supports adjustable output voltages from 1 V to 24 V. It utilizes a 12-VQFN-HR package, ensuring reliable performance across the -40°C to 125°C junction temperature range while meeting AEC-Q100 standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 specifications for robust operation in demanding environments.
• Ultra-low electromagnetic interference (EMI) design simplifies compliance with strict automotive noise regulations.
• Integrated synchronous rectification provides high efficiency across wide load and input voltage ranges.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging systems in electric and hybrid vehicles
• Infotainment and display power distribution networks
• ADAS sensor and controller power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix 'CQ3' corresponds to the intended fixed or adjustable output configuration as defined in the official datasheet. Confirm AEC-Q100 qualification status and ensure the 12-VQFN-HR package matches your PCB footprint requirements. Cross-reference the manufacturer's latest documentation to validate availability and lead times before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring a 2-A step-down solution with stringent EMI constraints. The wide 36-V input tolerance accommodates standard 12-V and 24-V vehicle bus architectures. Ensure thermal management strategies align with the QFN-HR package's heat dissipation characteristics within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR33620-Q1 family of synchronous buck converters designed specifically for automotive use. It shares core architecture with other variants in the series but differs in package type and output configuration options. The family is characterized by high integration and compact form factors suitable for space-constrained electronic control units.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LMR33620-Q1 variants with compatible packages and electrical ratings. Verify pin-to-pin compatibility and output voltage settings before substitution. Consult the manufacturer's cross-reference guide for approved alternative part numbers within the same product line.