LM2597MX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597MX-12/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, operating at a fixed switching frequency of 150 kHz. It provides a fixed output voltage of 12 V with a maximum output current capability of 0.5 A. The device supports Buck and Inverting topologies within an input voltage range of 4.5 V to 40 V. It features a low quiescent current of 5 mA and operates reliably across an extended temperature range from -40°C to +125°C. The component is housed in an SOIC-8 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic regulator designed for simplified power supply implementation
• Fixed internal switching frequency eliminates external oscillator requirements
• Built-in thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation modules
• Pre-regulators for switching regulators
• Efficient step-down converters from higher bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MX indicates tape-and-reel packaging versus M tube packaging when sourcing. Confirm RoHS compliance status via the manufacturer datasheet as NOPB denotes lead-free and rohs compliant construction. Ensure the 12V fixed output variant matches the system requirement rather than the adjustable version.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a compact buck or inverting solution with minimal external components. The 150 kHz frequency allows for smaller passive components compared to lower frequency alternatives. Verify that the 0.5 A output current meets the load demand and that the 40 V maximum input voltage accommodates the source supply variations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597 family of SIMPLE SWITCHER regulators, which are known for ease of design and high efficiency. The LM2597 series includes both adjustable and fixed voltage options. The MX suffix specifically denotes the reel-packaged version of the SOIC-8 device, distinguishing it from the tube-packaged M variant.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597M-12/NOPB is the tube-packaged equivalent with identical electrical specifications. LM2596 series devices offer similar functionality but may differ in pinout or performance characteristics.