LMR43620MC5RPERQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR43620MC5RPERQ1 is a synchronous step-down DC-DC converter from Texas Instruments, designed for automotive applications. It operates with an input voltage range of 3.6 V to 36 V and delivers a fixed output voltage of 5 V 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 and is qualified to AEC-Q100 standards, ensuring reliability within an operating junction temperature range of -40°C to 150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for robust performance in vehicle environments.
• Integrated synchronous rectification provides high efficiency across the load and input voltage ranges.
• Compact HotRod QFN footprint minimizes board space requirements while maintaining thermal performance.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board infotainment systems requiring stable 5V power rails
• Instrument clusters and dashboard control modules
• Telematics units and connectivity interfaces

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MC5 against official Texas Instruments documentation to confirm the fixed 5V output configuration. Ensure the component meets the required AEC-Q100 grade for your target automotive application. Cross-reference the full part number with manufacturer datasheets to validate pinout compatibility and thermal specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required for automotive loads up to 2A. It is suitable for designs needing wide input voltage tolerance and high-temperature operation. Consider alternative models if adjustable output or lower current capacity better fits the system constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR436x0-Q1 family of automotive buck converters. These devices are engineered to replace legacy solutions with smaller footprints and improved efficiency. The series supports various output configurations to address diverse power distribution needs in modern vehicles.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include other LMR43620 variants with different output voltages or packages. Verify that substitute parts maintain the same AEC-Q100 qualification and thermal characteristics to ensure system reliability.