LM2574MX-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574MX-5.0 is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, housed in a 14-pin SOIC package. It provides a fixed 5V output with a maximum current of 500mA. The device operates within an input voltage range of 4V to 40V and features a switching frequency of 52kHz. It supports operation across an extended temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient step-down regulation
• Fixed internal feedback network ensures stable 5V output without external adjustment components
• Built-in thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital logic circuits
• Pre-regulation for downstream linear regulators
• Battery-powered systems requiring efficient voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' indicates lead-free compliance when sourcing. Confirm the 'M' designator corresponds to the SOIC-14 package variant. Ensure the '-5.0' designation matches the required fixed 5V output level for your specific circuit design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a fixed 5V output from higher input voltages up to 40V. It is suitable where moderate efficiency and low component count are prioritized over high-frequency miniaturization. Consider the 52kHz switching frequency for standard passive component sizing.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574 family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2594 series but differs in switching frequency and package options. The MX suffix specifically denotes the surface-mount SOIC-14 configuration used in compact PCB layouts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574MX-5.0/NOPB is the direct equivalent including RoHS compliance. LM2574N-5.0/NOPB offers the same electrical performance in a through-hole MDIP-8 package.