LM2597HVMX-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVMX-3.3/NOPB is a step-down switching regulator from the Texas Instruments SIMPLE SWITCHER family, designed for high-voltage input applications. It operates with an input voltage range of 4.5 V to 60 V and provides a fixed 3.3 V output at up to 500 mA. The device integrates a 150 kHz fixed-frequency oscillator and features internal frequency compensation to minimize external component count. Key electrical parameters include a typical quiescent current of 5 mA and operation across a temperature range of -40°C to +125°C. It utilizes a surface-mount SOIC-8 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch rated for high-voltage inputs up to 60 V
• Fixed 150 kHz switching frequency reduces required inductor size
• Internal frequency compensation simplifies design and minimizes external components
• Thermal shutdown and current limit protection ensure operational reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial control systems
• High-voltage to low-voltage conversion in telecommunications equipment
• Battery-powered systems requiring efficient step-down conversion
• General-purpose DC-DC power supply modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) to confirm lead-free compliance and RoHS status. Ensure the ordering code matches the required package type, as the 'M' indicates SOIC-8 while other variants may use different packages. Confirm availability through authorized distributors, as stock levels fluctuate. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from a high-voltage source between 4.5 V and 60 V. It is suitable for applications needing moderate current up to 500 mA with minimal external circuitry. Consider the SOIC-8 package for space-constrained designs. If adjustable output or higher current is needed, evaluate alternative models within the LM2597HV series or related families.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597HV series, which includes fixed and adjustable voltage regulators. Variants such as LM2597HVM-5.0/NOPB provide different fixed outputs, while LM2597HVM-ADJ/NOPB offers adjustable voltage ranges. The series shares common topology and protection features but differs in output configuration and packaging options like tube or reel formats.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM2597HVM-3.3/NOPB (tube package) for identical electrical performance with different packaging. For adjustable output requirements, LM2597HVM-ADJ/NOPB serves as a functional alternative. Higher current needs may require moving to the LM2576HV series.