LM2597HVN-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVN-ADJ is a monolithic integrated circuit step-down switching regulator from the SIMPLE SWITCHER series, manufactured by Texas Instruments. It operates at a fixed 150 kHz frequency and supports an input voltage range of 4.5 V to 60 V. The device provides an adjustable output voltage ranging from 1.2 V to 57 V with a maximum load current of 0.5 A. It utilizes an 8-pin PDIP package and includes internal frequency compensation, error flagging, and shutdown capabilities.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch designed for buck topology applications
• Fixed 150 kHz internal oscillator allows for reduced external filter component size
• Includes thermal shutdown and two-stage current limit protection mechanisms
• Features low-power standby mode with typical quiescent current of 85 μA

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Offline switchers in industrial control environments
• Battery-powered systems utilizing high-voltage sources
• Pre-regulator stages for downstream linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and electrical tolerances. Ensure the procurement channel provides valid RoHS compliance data. Cross-reference the manufacturer part number with the latest datasheet revision to avoid discrepancies in thermal or electrical specifications during integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an input voltage up to 60 V is required, distinguishing it from standard LM2597 variants limited to 40 V. The adjustable output version offers flexibility for custom voltage rails within the 1.2 V to 57 V range. Consider the 8-pin PDIP package for through-hole mounting requirements in robust industrial enclosures.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2597HV family of SIMPLE SWITCHER converters, which are engineered for high-efficiency DC-DC conversion. The HV designation indicates enhanced input voltage capability compared to the standard LM2597. It shares architectural similarities with the LM2594 but adds supervisory features such as error flags and shutdown pins for advanced system management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVM-ADJ/NOPB (Surface Mount variant)

Voltage Regulators - DC DC Switching Regulators FAQ

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

The device supports a maximum input voltage of 60 V.

Does the LM2597HVN-ADJ include overtemperature protection?

Yes, the device incorporates complete thermal shutdown protection under fault conditions.