LM2597HVN-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVN-3.3/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It provides a fixed 3.3 V output with a maximum load current of 0.5 A. The device operates with an input voltage range from 4.5 V to 60 V and features a switching frequency of 150 kHz. It utilizes a PDIP-8 package and supports operation temperatures from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch rated for high input voltages up to 60 V
• Fixed 3.3 V output configuration for simplified design
• Internal frequency compensation eliminates external component count
• Thermal shutdown protection ensures operational reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC conversion
• Distributed power architectures in telecommunications equipment
• Battery-powered systems with high-voltage source requirements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' indicates the PDIP-8 through-hole package variant distinct from surface-mount options. Confirm RoHS compliance status via the manufacturer datasheet as 'NOPB' denotes lead-free construction. Ensure ordering documentation matches the exact part number to avoid confusion with similar SOIC or TO-263 packages within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required with inputs exceeding standard 40 V limits. The 0.5 A current rating suits moderate load applications where thermal dissipation in a PDIP package is manageable. Consider the 150 kHz frequency for balancing component size against efficiency requirements in space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597HV series, which extends the standard LM2597 capabilities to handle higher input voltages. The 'N' suffix specifically identifies the PDIP-8 plastic dual in-line package, differentiating it from the M (SOIC) or S (TO-263) variants. It serves as a robust solution for legacy board layouts requiring through-hole mounting.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVN-ADJ/NOPB offers adjustable output voltage instead of fixed 3.3 V. LM2597M-3.3/NOPB provides the same electrical performance but in an SOIC-8 surface-mount package.