LM5575Q0MHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5575Q0MHX/NOPB is an automotive-grade synchronous step-down switching regulator from Texas Instruments. It operates with input voltages up to 75V and delivers a continuous output current of 1.5A. The device supports adjustable output voltages ranging from 1.225V to 70V. It features a programmable switching frequency between 50kHz and 500kHz. The component is housed in a 16-pin HTSSOP package with exposed pad. It is qualified to AEC-Q100 standards and functions within a junction temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Automotive qualification compliant with AEC-Q100 standards
• Wide input voltage range supporting 6V to 75V sources
• Programmable switching frequency for optimization

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics power distribution
• Industrial DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q0' against the manufacturer's official datasheet to confirm it denotes the correct automotive grade and tape-and-reel packaging variant. Ensure the HTSSOP-16 pinout matches the target PCB footprint. Cross-reference the AEC-Q100 qualification status directly with Texas Instruments documentation to validate automotive reliability requirements before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring robust performance under wide input voltage fluctuations. The 1.5A current capability suits moderate load applications where space is constrained by the compact HTSSOP package. Consider the thermal performance of the exposed pad design for heat dissipation. Verify that the required output voltage range falls within the 1.225V to 70V specification limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5575 family of Simple Switcher regulators, designed for high-voltage buck applications. It shares architectural similarities with the LM5576 but offers lower current capacity. The 'Q' prefix indicates automotive qualification, while 'NOPB' signifies lead-free and RoHS compliance. It serves as a bridge between general-purpose PMICs and specialized automotive power solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5575MHX/NOPB: General-purpose equivalent without automotive qualification. LM5576Q0MHX/NOPB: Higher current (3A) alternative in a 20-pin package.