LM2597HVN-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVN-5.0 is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down switching regulator with a fixed 5 V output. It operates within an input voltage range of 4.5 V to 60 V and delivers up to 500 mA of output current. The device integrates a 150 kHz fixed-frequency oscillator for efficient operation. Designed for surface-mount applications, it utilizes an SOIC-8 package. The component supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch capable of handling input voltages up to 60 V
• Fixed 150 kHz switching frequency reduces external component size requirements
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Efficient buck conversion from higher voltage buses
• Pre-regulation for downstream linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' against the manufacturer datasheet to confirm pinout and package dimensions. Ensure the ordering part number matches the required tape-and-reel or tube packaging format. Confirm RoHS compliance status via the official specification document before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 60 V is required alongside moderate current demands. The fixed 5 V output simplifies design by eliminating external feedback resistors. Consider the SOIC-8 package constraints for thermal management and PCB layout space availability during the selection phase.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2597HV series, which extends the standard LM2597 capabilities to handle higher input voltages. It serves as a direct replacement for older non-high-voltage variants where system bus voltages exceed 40 V. The series maintains compatibility with standard SIMPLE SWITCHER design methodologies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2597M-5.0/NOPB is a documented alternative offering identical electrical specifications in a different package variant.