LM62440APPQRJRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM62440APPQRJRRQ1 is an automotive-grade synchronous step-down DC-DC converter from Texas Instruments. It supports a wide input voltage range of 3 V to 36 V and delivers up to 4 A output current. The device features a fixed switching frequency of 2.1 MHz and offers an adjustable output voltage range from 1 V to 34.2 V. It operates within a junction temperature range of -40°C to +150°C and consumes only 600 nA of quiescent current in shutdown mode. The component is housed in a VQFN-HR-14 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck topology for high-efficiency power conversion
• Automotive qualification ensuring reliability under harsh environmental conditions
• Low-noise design optimized for sensitive electronic loads
• Compact surface-mount packaging facilitating dense board layouts

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Advanced driver-assistance systems (ADAS)
• Telematics control units
• Body electronics modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number against official Texas Instruments documentation to ensure correct suffix alignment for automotive grade, package type, and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration. Cross-reference the datasheet revision history to validate functional parameters against current production standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing automotive power architectures requiring a 4 A continuous load capability with strict low-noise constraints. The fixed 2.1 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the thermal design accommodates the VQFN-HR-14 package limitations while maintaining operation within the specified -40°C to +150°C junction temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMQ62440 family of automotive synchronous buck converters. It shares architectural similarities with other members of the series but is distinguished by its specific automotive qualification and low-noise performance characteristics. The family targets applications demanding robust power management in electric and hybrid vehicle environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official Texas Instruments product selection guide for pin-compatible or functionally equivalent alternatives within the LMQ62440 or LM62440 families. Verify that any substitute maintains the required automotive grade certification and electrical specifications.