LM5574MTX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5574MTX/NOPB is a step-down switching regulator from Texas Instruments, part of the Simple Switcher family. It operates with an input voltage range of 6V to 75V and provides a non-isolated output adjustable from 1.23V to 70V. The device supports a maximum output current of 500mA using a buck topology. Packaged in a small outline dual in-line (SD) format, it is designed for efficient DC/DC conversion.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-voltage power switch capable of handling up to 75V input.
• Features internal frequency compensation for simplified external component selection.
• Includes built-in thermal shutdown and current limit protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring wide input voltage ranges
• Distributed power architectures in telecommunications equipment
• Point-of-load regulation for FPGA or ASIC power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MTX' confirms the tape-and-reel packaging configuration required for automated surface-mount assembly processes. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance status as per manufacturer specifications. Ensure the order quantity aligns with standard reel sizes to avoid partial reel handling fees or availability issues.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring a wide input voltage window extending up to 75V. It is suitable for applications needing moderate output currents around 500mA without external pass transistors. Consider the thermal performance in the chosen package if operating near maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5574 series of simple switchers, which are monolithic integrated circuits combining the controller and power switch. It serves as a cost-effective solution for isolated and non-isolated DC/DC converters, offering a compact alternative to discrete solutions in space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM5574MT/NOPB is a tube-packaged equivalent of the same functional device. Verify that the change from tape-and-reel to tube packaging does not impact existing pick-and-place manufacturing workflows.