LM5576QMHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5576QMHX/NOPB is a SIMPLE SWITCHER® high voltage step-down switching regulator from Texas Instruments, designed for automotive applications. It operates with an input voltage range of 6V to 75V and delivers up to 3A of output current. The device features adjustable output voltages starting from 1.225V up to 70V. It supports switching frequencies between 50kHz and 500kHz and includes internal compensation for simplified design. Packaged in a 20-PowerTSSOP (HTSSOP) with exposed pad, it is qualified to AEC-Q100 standards and functions within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High input voltage capability supporting 6V to 75V ranges for robust system integration
• Integrated power switch delivering 3A continuous output current for high-power loads
• Automotive-grade qualification ensuring reliability under strict environmental conditions
• Adjustable output voltage configuration allowing flexible power rail generation

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring stable high-voltage regulation
• Power distribution units in vehicle electrical architectures
• Industrial control modules operating under harsh thermal environments
• General-purpose high-voltage DC-DC conversion in automotive ECUs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as NOPB and package variant MHX to ensure exact specification alignment. Confirm AEC-Q100 qualification status if automotive compliance is mandatory for the target application. Check datasheet revisions for any recent parameter updates or pinout changes before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard 42V limits but remain below 75V. Ensure the required output current does not surpass 3A to maintain thermal performance within the specified junction temperature range. Verify that the chosen switching frequency aligns with external component selection guidelines provided in the official datasheet for optimal efficiency and stability.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM5576 family of high-voltage buck converters. It shares functional similarities with other SIMPLE SWITCHER® regulators but distinguishes itself through its extended 75V input rating and automotive-grade packaging. It serves as a solution for applications requiring high input voltage tolerance without external high-voltage switches.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official TI replacement matrix for verified cross-references. Direct substitutes must match the 75V input rating, 3A output current, and 20-HTSSOP package. Generic equivalents are not recommended due to specific automotive qualification requirements.