LM25010Q1MH/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25010Q1MH/NOPB is an automotive-grade, non-synchronous step-down switching regulator from Texas Instruments. It operates with a wide input voltage range of 6V to 42V and delivers up to 1A of output current. The device utilizes a fixed on-time architecture with an adjustable switching frequency between 100 kHz and 1 MHz. It features an adjustable output voltage range from 2.5V to 37V and includes integrated power MOSFETs. Qualified under AEC-Q100 standards, it supports junction temperatures up to 150°C and is housed in a 14-pin HTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 specifications for reliability in vehicle environments.
• Fixed on-time control architecture enables stable operation across wide input voltage variations without compensation complexity.
• Integrated high-side and low-side power switches eliminate the need for external boost diodes or gate drive components.
• Adjustable switching frequency allows optimization for efficiency and external component size requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring isolated or buck-derived power rails
• Body control modules and lighting applications with wide input voltage ranges
• Industrial DC-DC conversion where high temperature tolerance is required

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade status and AEC-Q100 compliance. Ensure the 'MHX' or 'MH' package variant matches the PCB footprint requirements. Confirm RoHS compliance details via the manufacturer's official documentation before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring robust input voltage handling up to 42V. The fixed on-time topology simplifies loop stability compared to constant frequency PWM controllers. Consider the thermal performance in the HTSSOP package when determining heat dissipation needs for continuous 1A loads.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM25010 family of wide-input voltage synchronous buck regulators. The Q1 designation indicates automotive qualification, distinguishing it from commercial variants like the standard LM25010. It serves as a core power management solution for high-voltage automotive buses.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other AEC-Q100 qualified buck regulators from Texas Instruments such as the LM516x series for higher current or different topologies. Verify pin compatibility and thermal characteristics when cross-referencing with competitors like Infineon or Analog Devices automotive buck converters.

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM25010Q1MH/NOPB a synchronous rectifier?

Yes, the datasheet describes it as a synchronous step-down switching regulator, meaning it integrates both high-side and low-side power switches internally.

What is the maximum input voltage for this device?

The device supports a wide input voltage range up to 42V, making it suitable for 12V and 24V automotive systems with transient spikes.