LM5113QDPRRQ1

Overview

The LM5113QDPRRQ1 is an automotive-grade, non-synchronous buck switching regulator from Texas Instruments. It supports input voltages from 6 V to 100 V and delivers up to 3.5 A of output current. The device operates with a fixed switching frequency of 1 MHz and features adjustable output voltage ranging from 1.2 V to 50 V. It includes integrated soft-start, cycle-by-cycle current limit, and thermal shutdown protection. Qualified under AEC-Q100 standards for automotive applications, it ensures reliable performance across the specified temperature range.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Integrated high-side N-channel power switch
• Fixed 1 MHz switching frequency operation
• Built-in soft-start and overcurrent protection

Applications

• Automotive infotainment systems
• Body control modules (BCM)
• Industrial motor drives
• General-purpose DC-DC conversion in harsh environments

Procurement Notes

Verify the specific suffix 'QDPRRQ1' against the official datasheet to confirm package type, tape-and-reel quantity, and temperature grade. Ensure the supplier provides valid traceability documentation for automotive components. Cross-reference the manufacturer part number with authorized distributor listings to avoid counterfeit products. Confirm RoHS compliance status as per the latest product release notes.

Selection Notes

Select this component when a robust, non-synchronous buck solution is required for inputs up to 100 V. It is suitable for applications where simplicity and cost-effectiveness are prioritized over peak efficiency at light loads. Consider the fixed 1 MHz frequency for EMI management and passive component sizing. Evaluate thermal requirements based on the 3.5 A maximum output capability and ambient operating conditions.

Part Context

This part belongs to the LM511x family of wide-input voltage buck regulators designed for demanding industrial and automotive environments. It shares architectural similarities with other members like the LM5013 but offers specific pinout and feature configurations tailored for high-voltage step-down applications. The Q1 designation indicates its suitability for automotive electronics requiring long-term reliability.

Replacement Considerations

LM5013QDDARQ1