LM25574QMTX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25574QMTX/NOPB is a high-efficiency step-down switching regulator from the Simple Switcher family, designed for automotive and industrial applications. It operates with an input voltage range of 6 V to 42 V and delivers up to 0.5 A output current. The device features an adjustable output voltage from 1.225 V to 40 V and supports a switching frequency between 50 kHz and 1 MHz. It includes integrated soft-start, current limit protection, and thermal shutdown. Qualified under AEC-Q100 standards, it functions reliably within a junction temperature range of -40 °C to +125 °C in a 16-pin HTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated AEC-Q100 qualification for robust automotive reliability
• Wide input voltage range supporting 6 V to 42 V operation
• Adjustable output voltage capability from 1.225 V to 40 V
• Built-in protection mechanisms including thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive electronics power distribution
• Industrial DC-DC conversion systems
• Point-of-load regulation for embedded controllers
• Battery-powered equipment step-down applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q' confirms AEC-Q100 automotive qualification status against the manufacturer's official datasheet. Ensure the 'MTX' designation matches the required tape-and-reel packaging format for automated assembly processes. Confirm that the component meets all environmental compliance requirements relevant to your target market before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring a compact buck converter with automotive-grade reliability. It is suitable for applications needing wide input voltage tolerance and adjustable output settings. Consider the 0.5 A current limit when sizing external components. Evaluate the need for external compensation if operating at frequencies significantly above or below the standard range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the Texas Instruments LM25574 series of non-synchronous step-down regulators. It serves as the automotive-qualified variant of the commercial LM25574, offering similar electrical performance but with enhanced durability standards. The series is known for simplifying power supply design through minimal external component counts and integrated protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM25574MT/NOPB for commercial grade or LM25574QMT/NOPB for alternative automotive packaging. Verify pin compatibility and thermal characteristics when transitioning between these variants.