LMR43620MC3RPERQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR43620MC3RPERQ1 is an automotive-grade synchronous buck converter from Texas Instruments. It operates with an input voltage range of 3 V to 36 V and delivers a fixed 3.3 V output at up to 2 A. The device features a low quiescent current of 1.5 µA and supports switching frequencies up to 2.2 MHz. It is housed in a compact 9-VQFN-HR package, rated for junction temperatures up to 150°C, and complies with AEC-Q100 standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Integrated synchronous rectification for high efficiency
• Compact HotRod QFN footprint for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MC3' against the official datasheet to confirm the fixed 3.3 V output configuration. Ensure the 'Q1' designation matches your project's automotive reliability requirements. Cross-reference the manufacturer part number directly with the latest revision to avoid discrepancies in pinout or thermal characteristics.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 2 A output current is required within a 36 V automotive environment. The fixed 3.3 V output eliminates external feedback resistor networks. Consider the 2.2 MHz switching frequency for minimizing passive component size while managing electromagnetic interference constraints in sensitive vehicle architectures.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR436x0-Q1 family of automotive buck converters. It shares the same core topology and packaging as other variants in the series, differing primarily in output current capability and voltage settings. The family is designed to provide robust power management solutions for demanding automotive applications requiring high efficiency and small form factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR43620MB5RPERQ1 offers a similar 2 A capacity but provides a fixed 5 V output instead of 3.3 V. LMR43610MC3RPERQ1 provides the same 3.3 V output but is limited to 1 A current capability. Verify thermal performance and load requirements before substituting.