LMR43610MSC5RPERQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR43610MSC5RPERQ1 is an automotive-grade synchronous step-down DC-DC converter from Texas Instruments. It operates with an input voltage range of 3 V to 36 V and delivers a fixed 5 V output at up to 1 A. The device features a low quiescent current of 250 nA and supports switching frequencies up to 2.2 MHz. It is housed in a compact 9-pin VQFN-HR package and functions within a junction temperature range of -40°C to +150°C.

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
• Wide input voltage tolerance suitable for diverse automotive bus architectures
• Compact surface-mount packaging designed for space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment system power distribution
• Electronic control unit (ECU) auxiliary power supplies
• Telematics and connectivity module regulation
• Body control module peripheral logic powering

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MSC5' confirms the fixed 5 V output configuration, as other suffixes may indicate adjustable or different fixed voltages. Ensure the 'Q1' designation matches your project's automotive reliability requirements. Confirm the VQFN-HR package variant aligns with your board's thermal and footprint specifications 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 high efficiency and wide input tolerance. It is suitable for replacing older linear regulators or less robust buck converters in ECU designs. Consider the 1 A output limit and 2.2 MHz frequency capability against your specific load current and EMI constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR43610-Q1 family of low-EMI synchronous buck converters. The family shares common architectural features but varies by output current rating and voltage configuration. The LMR43610 specifically targets mid-range current needs in automotive environments, bridging the gap between lower-current microcontrollers and higher-power motor drives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible alternatives within the same family include LMR43610RS5QRPERQ1. Verify that substitute parts maintain the same fixed 5 V output and automotive grade certification to ensure functional equivalence without redesigning the surrounding circuitry.