LM2594MX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594MX-12/NOPB is a SIMPLE SWITCHER step-down voltage regulator 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 500 mA. The device accepts an input voltage range from 4.5 V to 40 V and features a shutdown function for power management. It is housed in an SOIC-8 surface-mount package and operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology for efficient DC-DC conversion
• Built-in thermal shutdown protection
• Fixed 12 V output voltage configuration
• Supports external shutdown control

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supply stages for industrial equipment
• Battery-powered applications requiring step-down conversion
• General-purpose 12 V distribution networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific packaging options such as cut tape or reel. Confirm that the required output voltage matches the fixed 12 V specification, as adjustable variants exist within the same family. Check datasheet specifications for thermal requirements and input voltage limits relative to your system design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from an input source between 4.5 V and 40 V. Consider the SOIC-8 package for surface-mount assembly constraints. Evaluate the 150 kHz switching frequency against electromagnetic interference requirements and inductor size limitations. Ensure the load current does not exceed 500 mA continuous operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2594 series of SIMPLE SWITCHER regulators, designed for high-efficiency step-down applications. It is distinct from the LM2597 series which supports inverting topologies, and the LM2594HV series which handles higher input voltages up to 60 V. The MX suffix indicates the SOIC-8 surface-mount package variant.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594MX-12/NOPB is the direct equivalent. LM2594MX-5.0/NOPB offers a different fixed output voltage. LM2594N-ADJ/NOPB provides adjustable output in a through-hole package.