LM2574HVM-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVM-12/NOPB is a SIMPLE SWITCHER 0.5A step-down voltage regulator manufactured by Texas Instruments, continuing the legacy of the National Semiconductor LM2574 series. It features a fixed 12V output with a maximum current of 500 mA. The device supports a wide input voltage range from 4 V to 60 V, utilizing a buck topology. Operating at a switching frequency of 58 kHz, it is housed in a SOIC-Wide-14 package. The component operates within a temperature range of -40°C to +125°C and includes internal frequency compensation for stability.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch enables direct connection to bus voltages up to 60 V without external components.
• Fixed 12 V output option eliminates the need for external feedback resistors, simplifying design.
• Internal frequency compensation ensures stable operation across varying load and line conditions.
• Supports both standard buck (step-down) and inverting topologies for flexible power conversion.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring regulated 12 V rails
• Battery-powered equipment with high input voltage ranges
• Simple point-of-load regulation modules
• Inverting power supply configurations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix matches the specific package type and temperature rating required for your application. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the part number corresponds to the correct output voltage variant, as the LM2574 family offers multiple fixed options. Cross-reference the datasheet revision date to ensure compatibility with current design standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from an input source between 4 V and 60 V. The 500 mA current limit suits low-to-medium power applications. Consider the SOIC-Wide-14 package for thermal management and PCB space constraints. Verify that the 58 kHz switching frequency aligns with your EMI requirements and passive component selection strategy.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2574/LM2574HV SIMPLE SWITCHER family, originally developed by National Semiconductor and now produced by Texas Instruments. The 'HV' designation indicates support for higher input voltages up to 60 V compared to standard variants. The '/NOPB' suffix denotes a lead-free, halogen-free product compliant with environmental directives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574HVMX-12/NOPB: Tape and reel version of the same regulator. LM2574HVM-12: Non-RoHS version of the same device. LM5574: Higher voltage capability up to 75 V with similar functionality.