LM25575QMHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25575QMHX/NOPB is a high-voltage synchronous buck switching regulator from Texas Instruments, designed for automotive and industrial applications. It operates with an input voltage range of 6 V to 42 V and delivers up to 1.5 A of output current. The device supports adjustable output voltages from 1.225 V to 40 V. It features an integrated switching frequency range of 50 kHz to 1000 kHz. The component is housed in a TSSOP-EP-16 package and is qualified to AEC-Q100 standards, ensuring reliability in demanding environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency and reduced external component count
• AEC-Q100 qualified for robust performance in automotive electronic systems
• Adjustable switching frequency allows optimization for specific size and performance requirements
• Current-mode control architecture provides fast transient response and inherent cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and display power distribution
• On-board charger (OBC) auxiliary power supplies
• Industrial motor drive control circuits
• Point-of-load regulation for microprocessors and FPGAs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the Q suffix indicates AEC-Q100 qualification status. Confirm the MHX suffix corresponds to the tape-and-reel packaging format. Ensure the NOPB designation confirms lead-free and RoHS compliance. Cross-reference the full part number with official Texas Instruments documentation to validate pinout and thermal pad specifications before integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 42 V is required with moderate current demands. The synchronous design reduces heat generation compared to non-synchronous alternatives. Consider the adjustable frequency feature to minimize electromagnetic interference or optimize passive component sizes. Ensure the operating temperature range meets the specific application environment constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family, known for ease of design implementation. It complements other high-voltage regulators like the LM25576, which offers higher current capacity. The LM25575 series provides a balance between performance and simplicity for step-down conversion tasks in constrained spaces.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM25575MH/NOPB for tube packaging or LM25575MHX/NOPB for reel packaging. Non-qualified equivalents may exist but lack automotive certification. Verify pin compatibility and thermal characteristics when considering alternative manufacturers.