LM25011AQ1MYX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25011AQ1MYX/NOPB is an automotive-grade constant on-time (COT) buck switching regulator designed for high-efficiency power conversion. It integrates a 2-A N-channel power switch and supports input voltages from 6 V to 42 V with a maximum rating of 45 V. The device delivers adjustable output voltages ranging from 2.51 V to 40 V, featuring a fixed internal switching frequency of 2.25 MHz. It operates within 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 Grade 1 qualification compliant with AEC-Q100 standards for reliability in demanding environments
• Constant on-time topology eliminates the need for external loop compensation components
• Integrated 2-A N-channel power switch enables compact circuit design with reduced component count
• Adjustable valley current limit allows optimization of inductor size while preventing overload

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive safety systems requiring robust voltage regulation
• In-vehicle infotainment and display power supplies
• Front-end camera module biasing circuits
• General-purpose DC/DC step-down conversion in harsh thermal conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q1' confirms Automotive Grade 1 classification and +150°C junction temperature capability. Ensure the ordering part number matches the exact package variant and tape/reel specifications required for your assembly line. Cross-reference the manufacturer datasheet revision to confirm pinout compatibility and electrical characteristics before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring high thermal resilience up to 150°C junction temperature. The integrated 2-A switch and fixed 2.25 MHz frequency simplify layout compared to lower-frequency alternatives. Consider the COT architecture benefits for transient response if loop stability is a constraint. Verify that the 6 V minimum input voltage aligns with your system's cold-crank or shutdown requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM25011 family of high-voltage buck regulators. While standard versions like the LM25011MY/NOPB operate up to 125°C, the AQ1 variant specifically targets automotive Grade 1 environments with extended thermal limits. It shares the core COT control architecture but differs in qualification standards and maximum operating temperature ratings compared to industrial grade counterparts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include other Texas Instruments automotive-grade buck regulators such as the LM5010A series for wider input ranges or different current capabilities. When substituting, verify that the alternative device maintains compatible switching frequencies and package dimensions to ensure PCB footprint compatibility without redesign.