LM2594MX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594MX-3.3/NOPB is a step-down switching voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates at a fixed switching frequency of 150 kHz and delivers up to 500 mA output current. The device provides a fixed 3.3 V output and accepts an input voltage range of 4.5 V to 40 V. Packaged in an 8-SOIC surface-mount case, it supports operation across a temperature range of -40°C to +125°C TJ.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller for simplified buck converter design
• Fixed internal switching frequency eliminates external timing components
• Built-in thermal shutdown protection for operational safety

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation modules
• Pre-regulator stages for linear regulators
• Standard 5V or 12V bus conversion systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free status and RoHS compliance as per manufacturer specifications. Ensure the package designation matches the required SOIC-8 footprint for PCB layout compatibility. Confirm that the fixed 3.3 V output variant aligns with the target circuit requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required without external feedback resistors. It is suitable for applications needing moderate current capability up to 500 mA. Consider the 150 kHz frequency for balancing efficiency and passive component size. Verify input voltage does not exceed the 40 V maximum rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2594 series of SIMPLE SWITCHER power converters. It represents a fixed-voltage variant within the broader family that also includes adjustable and other fixed-output options. The MX suffix indicates the SOIC-8 package type, while NOPB denotes non-plated lead-free construction.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include LM2594M-3.3/NOPB and LM2594MX-3.3/NOPB variants from the same family. Cross-reference pinouts and electrical characteristics to ensure functional equivalence. Verify thermal performance and packaging dimensions match the existing design constraints.