LM2597HVN-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVN-12 is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a monolithic integrated circuit step-down voltage regulator. It operates at a fixed switching frequency of 150 kHz and supports an input voltage range up to 60 V. The device provides a fixed 12 V output with a maximum load current capability of 0.5 A. It is housed in an 8-pin PDIP package and includes internal features such as frequency compensation, error flagging, and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology with high-voltage input handling up to 60 V
• Fixed 150 kHz internal oscillator for reduced external filter size
• Built-in thermal shutdown and two-stage current limit protection
• External shutdown pin with low standby current consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Distributed power architectures in equipment with high bus voltages
• Battery-powered systems needing efficient step-down regulation
• Embedded applications utilizing standard through-hole mounting

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm package type and temperature rating. Ensure the ordering part number matches the required output voltage tolerance and thermal performance specifications for the target application environment before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 0.5 A buck converter is needed for inputs exceeding 40 V. The fixed 12 V output eliminates external feedback resistor networks. Consider the PDIP package for prototyping or applications requiring through-hole assembly capabilities over surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2597HV series, which extends the standard LM2597 family by supporting higher input voltages up to 60 V. It shares functional similarities with the LM2594 but adds supervisory features like error flags. The series is designed for simplicity, requiring minimal external components while maintaining high efficiency typical of switching regulators.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVM-12/NOPB (Surface Mount variant)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by the LM2597HVN-12?

The device supports a maximum input voltage of 60 V.

Does the LM2597HVN-12 include thermal protection?

Yes, it features complete thermal shutdown protection under fault conditions.