LM25011MYX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25011MYX/NOPB is a constant on-time buck switching regulator manufactured by Texas Instruments. It integrates a 2-A N-channel power switch and operates within an input voltage range of 6 V to 42 V, with absolute maximum ratings up to 45 V. The device supports adjustable output voltages from 2.51 V to 40 V and delivers up to 2 A of load current. Key electrical parameters include a typical quiescent current of 1.2 mA, a switch frequency capability up to 2.25 MHz, and an operating temperature range from -40°C to +125°C. It utilizes a COT topology for fast transient response without loop compensation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control topology eliminates the need for external loop compensation and ensures stable operation with ceramic output capacitors.
• Integrated 2-A N-channel power switch reduces component count and simplifies design implementation.
• Adjustable valley current limit detection enables smooth transition to constant current mode without foldback behavior.
• Built-in protection features include thermal shutdown, VIN undervoltage lockout, gate drive precharge, and power good indication.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive safety systems
• Automotive infotainment units
• Front camera modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MYX' against the manufacturer datasheet to confirm package type and reel specifications. Ensure compatibility with required humidity sensitivity levels and moisture management protocols during storage and assembly. Cross-reference the ordering part number with official TI documentation to validate RoHS compliance and lead-free status before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for high-voltage step-down applications requiring fast transient response and simplified compensation. The COT architecture suits designs needing minimal external components and stable performance with low-ESR ceramic capacitors. Consider the 2-A current rating and 42-V input range when sizing inductors and input capacitors for target efficiency and ripple requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM25011 family of high-voltage buck regulators. It shares functional similarities with the LM25011A variant, though the standard MYX version has different minimum off-time characteristics compared to the 'A' suffix. It serves as a non-synchronous solution for cost-sensitive, efficient bias supply generation in automotive and industrial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM25011AMYE

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LM25011MYX/NOPB require external loop compensation?

No, the constant on-time (COT) control topology inherently provides stability without the need for external loop compensation components.

What is the minimum output voltage supported by this regulator?

The device supports adjustable output voltages starting from 2.51 V.