LM5574Q0MT/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5574Q0MT/NOPB is an automotive-grade synchronous step-down switching regulator from Texas Instruments. It operates with an input voltage range of 3V to 60V and delivers a maximum output current of 1.5A. The device features an adjustable output voltage ranging from 0.8V to 55V, with a fixed 5V option available. It supports switching frequencies between 100kHz and 1MHz. The component is housed in a thermally enhanced HTSSOP-16 package and is rated for operation over an extended temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Automotive qualification compliant with AEC-Q100 standards
• Adjustable switching frequency for optimized design flexibility
• Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Body control modules
• Telematics units
• ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q0' against the manufacturer's latest datasheet to confirm it denotes the correct automotive grade and pin configuration. Ensure the ordering part number matches the required tape-and-reel packaging format. Cross-reference the date code and lot traceability requirements with your quality management system before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring robust power conversion. It is suitable for applications needing a wide input voltage range up to 60V. Consider the thermal performance of the HTSSOP-16 package relative to your PCB copper area. Verify that the required output current does not exceed the 1.5A limit under worst-case thermal conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5574 family of SIMPLE SWITCHER regulators. It shares architectural similarities with other high-voltage buck converters but is specifically qualified for automotive reliability. It serves as a compact solution for replacing discrete MOSFET-based designs in space-constrained automotive electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5574MT/NOPB: Non-automotive grade version with identical electrical specifications.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the minimum operating input voltage?

The minimum operating input voltage is 3V.

Is the output voltage adjustable?

Yes, the output voltage is adjustable from 0.8V to 55V using external resistors.