LM2594MX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594MX-5.0/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, housed in an 8-SOIC package. It operates as a buck converter with a fixed 5 V output and a maximum output current of 500 mA. The device supports an input voltage range of 4.5 V to 40 V and utilizes a fixed switching frequency of 150 kHz. It features a shutdown function and maintains a typical quiescent current of 5 mA. The component is rated for operation between -40°C and +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient step-down regulation
• Fixed internal switching frequency eliminates external timing components
• Built-in thermal shutdown and current limit protection mechanisms
• Low quiescent current consumption during active operation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital logic circuits
• Pre-regulation stages for downstream linear regulators
• Battery-powered systems requiring efficient voltage conversion
• Industrial control modules with wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB confirms lead-free and RoHS compliance status per the manufacturer datasheet. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Confirm the MX suffix indicates tape-and-reel packaging if automated assembly is planned. Cross-reference the specific revision level against your design documentation to ensure compatibility with existing BOMs and supply chain agreements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 5 V output is required from inputs up to 40 V. The 500 mA current rating suits low-power digital loads. Consider the 150 kHz frequency for balancing component size and efficiency. Evaluate thermal performance under load, as the SOIC-8 package has limited heat dissipation compared to larger packages. Verify that the input voltage never exceeds the 40 V absolute maximum rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2594 family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2596 but offers higher integration and simplified design. The LM2594 series is designed for non-isolated DC-DC conversion. It serves as a cost-effective alternative to discrete solutions, reducing board space and component count for standard voltage regulation tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594MX-12/NOPB provides a 12 V fixed output instead of 5 V. LM2594M-ADJ/NOPB allows adjustable output voltage settings. LM2594HVMX-5.0/NOPB supports higher input voltages up to 60 V while maintaining the same 5 V output.