LM2597M-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597M-5.0/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, housed in an SOIC-8 surface-mount package. It provides a fixed 5 V output with a maximum current capacity of 500 mA. The device operates at a switching frequency of 150 kHz and supports input voltages ranging from 4.5 V to 40 V. It features low quiescent current of 5 mA and functions within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch eliminates the need for external components typically required in discrete designs.
• Fixed internal feedback network ensures stable regulation without requiring external resistors for standard voltage outputs.
• Built-in thermal shutdown and current limiting protect the device under overload or excessive heat conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulation stages for linear regulators
• Battery-powered equipment efficiency improvement

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per manufacturer documentation. Confirm the 'M' suffix indicates the SOIC-8 package variant rather than other package options. Ensure the '-5.0' designation matches the required fixed output voltage for the target circuit design before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for moderate current loads 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 40 V maximum input rating to ensure compatibility with the system's supply voltage range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597 family of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. It serves as a drop-in replacement for older discrete solutions or legacy regulators, offering improved integration and reduced board space requirements while maintaining robust performance characteristics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597M-ADJ/NOPB offers adjustable output voltage instead of fixed 5 V. LM2596S-5.0/NOPB provides higher current capability (3 A) but uses a TO-263 package. LM2594M-5.0/NOPB is a similar 500 mA regulator but may differ in pinout or thermal characteristics.