LM2597M-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597M-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down switching voltage regulator. It operates at a fixed switching frequency of 150 kHz and delivers a maximum output current of 500 mA with a fixed 5 V output. The device supports an input voltage range from 4.5 V to 40 V. It is housed in an SOIC-8 surface-mount package and is rated for operation within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic switching regulator designed for high-efficiency step-down conversion
• Fixed internal switching frequency eliminates the need for external oscillator components
• Includes built-in thermal shutdown and current limiting protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation modules
• Pre-regulators for post-LDO linear regulators
• Efficient buck converters for battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and RoHS compliance. Ensure the package type matches the PCB footprint requirements. Confirm that the fixed 5 V output variant aligns with the design specifications, as adjustable versions exist within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required with moderate current demands up to 500 mA. It is suitable for applications where a 150 kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the SOIC-8 package constraints regarding thermal dissipation and board space availability.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597 series of SIMPLE SWITCHER regulators. It serves as a compact solution for DC-DC conversion, offering a balance between performance and simplicity. The series is widely used in industrial and consumer electronics for efficient power management tasks requiring stable voltage regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597M-5.0/NOPB is the direct lead-free equivalent of the LM2597M-5.0. Other variants in the family include the adjustable LM2597M-ADJ/NOPB and higher-current options like the LM2596 series.