LM25011AQ1MY/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25011AQ1MY/NOPB is an automotive-grade, constant-on-time (COT) buck switching regulator designed for high-voltage applications. It integrates a 2-A N-channel power switch and operates within an input voltage range of 6 V to 42 V. The device supports adjustable output voltages from 2.51 V to 40 V with a maximum output current of 2 A. Key electrical parameters include a typical quiescent current of 1.2 mA and a switch frequency capability up to 2.25 MHz. It functions reliably across a junction temperature range of -40°C to +150°C and utilizes a 10-pin HVSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for extended thermal reliability
• Constant-on-time topology eliminates loop compensation requirements while ensuring fast transient response
• Integrated adjustable valley current limit enables the use of smaller inductors without foldback behavior
• High-voltage input handling allows efficient step-down conversion from standard automotive bus voltages

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive safety systems requiring robust power regulation under varying load conditions
• Infotainment subsystems needing stable bias voltages for processing units
• Front camera modules demanding reliable power delivery in harsh environmental conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix AQ1 corresponds to the intended automotive grade and temperature rating before procurement. Confirm package availability matches the HVSSOP-10 requirement. Ensure design compliance with AEC-Q100 standards if used in certified automotive assemblies. Cross-reference datasheet revisions to confirm pinout consistency with existing layouts.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring high input voltage tolerance and integrated power switching. The COT architecture simplifies layout by removing external compensation networks. Consider the 2-A current limit and 42-V input range against peak load demands. Evaluate thermal performance within the 10-pin HVSSOP package for the specific application's heat dissipation needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM25011 family of high-voltage buck regulators. It shares architectural similarities with the LM25011MY/NOPB but includes automotive-specific qualifications. The series is characterized by its ability to operate efficiently at high frequencies, allowing for compact passive component selection in space-constrained electronic designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM25011MY/NOPB serves as a non-automotive equivalent with identical electrical specifications. Verify that the absence of AEC-Q100 certification meets the target application's reliability requirements. Check for any minor differences in thermal characteristics or packaging tolerances between the qualified and standard variants.