LM2597HVN-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVN-5.0 is a monolithic integrated circuit from the SIMPLE SWITCHER series, functioning as a step-down (buck) switching voltage regulator. It provides a fixed 5 V output with a maximum load current of 0.5 A. The device operates with an input voltage range up to 60 V and utilizes a fixed 150 kHz internal oscillator. It is housed in an 8-pin PDIP package and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch capable of driving 0.5 A loads
• Fixed 150 kHz internal oscillator for reduced external component size
• Built-in thermal shutdown and two-stage current limit protection
• External shutdown pin for low-power standby operation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for systems with high input voltages
• Pre-regulators for downstream switching regulators
• Efficient buck converters for battery-powered equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix 'N' corresponds to the PDIP package variant rather than surface mount options. Confirm the manufacturer lineage, as National Semiconductor's semiconductor assets were acquired by Texas Instruments. Ensure the datasheet references align with the HV version specifications for the 60 V input rating.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from inputs up to 60 V. The 0.5 A current limit suits low-power applications where simplicity and minimal external parts are priorities. Consider the PDIP package for through-hole prototyping or manufacturing requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597HV family of SIMPLE SWITCHER regulators. It shares architectural similarities with the standard LM2597 but extends the maximum input voltage capability to 60 V. The family includes fixed voltage outputs and adjustable versions, all designed for high efficiency with minimal external components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVM-5.0/NOPB: Surface mount SOIC-8 equivalent. LM2597-5.0/NOPB: Standard version limited to 40 V input.