LMR43620MSC3RPERQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR43620MSC3RPERQ1 is an automotive-grade synchronous buck converter from Texas Instruments. It operates with a 3 V to 36 V input range and provides a fixed 3.3 V output at up to 2 A. The device features low quiescent current of 1.5 µA and a 2.2 MHz switching frequency. Packaged in a 9-pin VQFN-HR, it supports -40°C to +150°C operation and includes shutdown functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability
• Integrated synchronous rectification for efficient power conversion
• Compact HotRod QFN package design minimizing footprint area
• Low standby current consumption for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MSC3 indicates the fixed 3.3 V output configuration. Confirm the PERQ1 designation ensures automotive grade compliance and reel packaging. Cross-reference the manufacturer datasheet revision date to ensure compatibility with latest thermal and electrical specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V rail is required for automotive loads. The 2 A capacity suits moderate current demands. The 2.2 MHz frequency allows smaller passive components compared to lower frequency alternatives. Ensure input voltage remains within the 3 V to 36 V operational window for stable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR436x0 series, designed for space-constrained automotive environments. It shares architectural similarities with other members like the LMR43620MB5RPER but differs in output voltage configuration. The series emphasizes low EMI and high efficiency in a minimal 4 mm² package.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR43620MB5RPER offers similar performance but provides a fixed 5 V output instead of 3.3 V. Verify that the load requirements align with the alternative voltage level before substitution.