LM2574HVMX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVMX-12/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage input applications up to 60V. It provides a fixed 12V output with a maximum current of 500mA. The device operates at a switching frequency of 52kHz and features an internal power switch rated for 0.5A. It supports buck and inverting topologies, operates within a temperature range of -40°C to +125°C, and utilizes a 14-pin SOIC-Wide package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch eliminates the need for external components
• Fixed 12V output option simplifies design for specific voltage requirements
• Internal frequency compensation reduces external component count
• Thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage conversion
• Battery-powered equipment utilizing high-voltage battery packs
• Industrial control systems with wide input voltage ranges
• Inverting power supply configurations for negative rail generation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'HVMX' confirms the SOIC-14 surface-mount package and tape-and-reel shipping format. Ensure the '-12' designation matches the required 12V fixed output voltage. Confirm 'NOPB' indicates lead-free and RoHS compliance status. Cross-reference the manufacturer part number with official Texas Instruments documentation to validate authenticity and current production status before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from inputs up to 60V. The 500mA current limit suits low-to-medium power loads. The SOIC-14 package is appropriate for surface-mount assembly processes. Consider thermal management requirements due to power dissipation at higher input voltages or load currents compared to lower dropout regulators.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574HV family of SIMPLE SWITCHER regulators, which are optimized for high-input voltage applications. Unlike the standard LM2574 series limited to 40V, the HV variant supports inputs up to 60V. The 'M' suffix denotes the SOIC-14 package, while 'MX' indicates reel packaging. This distinguishes it from through-hole DIP variants like the LM2574N series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574HVMX-12/NOPB is functionally equivalent to LM2574HVM-12/NOPB (tube packaging). For pin-compatible alternatives, consider LM5574HV series devices for similar performance with different packaging options.