LM62440ALPQRJRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM62440ALPQRJRRQ1 is an automotive-grade synchronous step-down DC-DC converter manufactured by 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 switching frequency of 2.1 MHz and supports adjustable output voltages from 1 V to 34.2 V. It includes a shutdown function and maintains a typical quiescent current of 600 nA. The component is housed in a VQFN-HR-14 package and is rated for operation between -40°C and +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck topology for efficient power conversion
• Low-noise design suitable for sensitive automotive electronics
• Automotive qualification compliant with AEC-Q100 standards

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Instrument cluster power distribution
• ADAS sensor node regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LPQR' against the official datasheet to confirm pinout and thermal pad configuration. Ensure the ordering part number matches the exact temperature grade and package variant required for your PCB layout. Cross-reference the manufacturer's latest documentation to validate RoHS compliance status and moisture sensitivity level before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring high efficiency and low electromagnetic interference. The fixed 2.1 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the thermal performance of the VQFN-HR-14 package relative to your expected load current and ambient operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM62440 family of automotive synchronous buck converters. It shares core architectural similarities with other members like the LM62440APPQRJRRQ1, differing primarily in specific suffix codes that denote package type or manufacturing lot variations. The family is designed to provide robust power management solutions for demanding vehicle applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same series include LM62440APPQRJRRQ1. Verify pin compatibility and electrical specifications before swapping.