LM76003QRNPTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM76003QRNPTQ1 is an automotive-qualified synchronous step-down voltage converter manufactured by Texas Instruments. It operates with an input voltage range of 3.5 V to 60 V and delivers a maximum output current of 3.5 A. The device features adjustable output voltages from 1 V to 57 V and supports switching frequencies between 300 kHz and 2.2 MHz. It utilizes a WQFN-30 package, has a quiescent current of 15 uA, and functions within a junction temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• High-voltage input capability up to 60 V enables direct connection to heavy-duty battery systems.
• Integrated synchronous rectification provides high efficiency across wide load and line conditions.
• Flexible frequency adjustment allows optimization for specific electromagnetic interference requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging (OBC) systems
• DC/DC conversion in electric vehicles
• Industrial power distribution networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and qualification level. Confirm that the WQFN-30 package matches the target PCB footprint. Check datasheet specifications for thermal resistance values relevant to the specific application environment. Ensure compliance with AEC-Q100 requirements if used in automotive contexts.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high input voltage tolerance and significant output current are required. Consider the thermal performance of the WQFN-30 package for heat dissipation needs. Evaluate the adjustable switching frequency range to meet system-specific noise constraints. Compare against lower-current variants if the 3.5 A limit exceeds actual load demands.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM76003 family of synchronous buck converters designed for demanding power management applications. It shares architectural similarities with other high-voltage regulators but is distinguished by its specific 3.5 A current rating and automotive certification. The family targets industrial and automotive sectors requiring reliable DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM76003RNPR is listed as a parameter-equivalent alternative. Verify pinout compatibility and electrical specifications before substitution. Ensure the replacement meets the same automotive qualification standards if required by the design.