LMQ62440BPPQRJRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMQ62440BPPQRJRRQ1 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 maximum output current of 4 A. The device features a fixed 3.3 V output and integrates low-noise switching technology. Key electrical parameters include a quiescent current of 600 nA and a switch frequency of 2.1 MHz. It supports operation across a temperature range of -40°C to +150°C and utilizes a VQFN-HR-14 package for surface mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated synchronous buck topology providing efficient power conversion without external rectifiers.
• Low-noise design optimized to minimize electromagnetic interference in sensitive applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct package, temperature grade, and tape-and-reel specifications. Confirm that the specific variant matches the required automotive qualification level and output configuration before procurement to avoid integration errors.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output, high-current solution is required for automotive platforms. The fixed 3.3 V output simplifies design compared to adjustable variants. Ensure the application demands a 4 A capability and fits within the 3 V to 36 V input window. The VQFN-HR-14 package requires appropriate thermal management considerations on the PCB layout.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the LMQ62440 family of low-noise synchronous buck converters designed specifically for automotive use. It complements other Texas Instruments power management solutions by offering a balance of high efficiency and low electromagnetic interference. The family targets demanding electronic loads in modern vehicles requiring stable power delivery.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check the LM61440AASQRJRRQ1 for similar automotive buck performance. Verify compatibility regarding package dimensions, pinout assignments, and thermal characteristics before substitution. Ensure the replacement meets the same AEC-Q100 qualification requirements.