LM2597HVMX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVMX-12/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, operating as a step-down (buck) switching regulator. It provides a fixed 12 V output with a maximum current of 500 mA. The device supports an input voltage range from 4.5 V to 60 V and operates at a fixed switching frequency of 150 kHz. It features low quiescent current of 5 mA and functions within a temperature range of -40°C to +125°C. Packaged in an SOIC-8 surface-mount case, it integrates internal compensation and protection features for efficient DC/DC conversion.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch capable of handling up to 60 V input
• Fixed 150 kHz switching frequency reduces external component size
• Internal frequency compensation simplifies design requirements
• Thermal shutdown and current limit protection ensure reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• On-card regulation modules
• Pre-regulator stages for switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as NOPB to confirm lead-free status and specific package variants. Confirm the SOIC-8 package type matches your PCB footprint requirements. Check datasheet specifications for thermal performance under expected load conditions. Ensure input voltage does not exceed the 60 V absolute maximum rating. Validate that the 500 mA output current meets system demands without exceeding thermal limits.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a high-voltage input source up to 60 V. It is suitable for applications needing moderate current capability around 500 mA with minimal external components. Consider the SOIC-8 package for space-constrained surface-mount designs. Compare against adjustable versions if variable output voltage is needed instead of the fixed 12 V configuration.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597HV series of SIMPLE SWITCHER converters. It is designed for high-efficiency step-down conversion. The series typically includes adjustable and fixed voltage options. It shares architectural similarities with other LM259x family members but offers higher input voltage tolerance compared to standard LM2596 devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVMX-ADJ/NOPB: Adjustable output version of the same series. LM2594HVMX-12/NOPB: Lower current variant (0.5A) with similar topology.