LM2594M-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594M-12 is a step-down switching regulator IC manufactured by UMW, belonging to the SIMPLE SWITCHER family. It operates with an input voltage range of 4.5V to 40V and provides a fixed output voltage of 12V. The device supports a maximum output current of 1.5A with a standard switching frequency of 150kHz. It features internal compensation for stability and includes thermal shutdown protection. The component is housed in an 8-SOIC package (8-SOP) suitable for surface mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch capable of delivering up to 1.5A output current
• Fixed 12V output configuration eliminates external feedback resistor requirements
• Internal frequency compensation simplifies design and reduces external component count
• Thermal shutdown circuitry protects against overheating during fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Standard 12V DC/DC conversion from higher bus voltages
• Pre-regulator stages for linear post-regulators
• Efficient battery-powered equipment power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer marking matches UMW specifications when sourcing. Confirm the suffix indicates the fixed 12V variant rather than adjustable or other voltage options. Check datasheet revisions for pinout consistency across production batches. Ensure compliance with RoHS3 standards if required by project specifications. Validate thermal performance under expected load conditions before final integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a stable 12V output is required from an input range of 4.5V to 40V. It is suitable for applications needing up to 1.5A continuous current without external feedback networks. Consider the 150kHz switching frequency for balancing efficiency and EMI. Compare against adjustable variants if flexible output voltage is needed instead.

Voltage Regulators - DC DC Switching Regulators Part Context

This component is part of the LM2594 series of SIMPLE SWITCHER power converters. The series includes adjustable versions and other fixed voltage outputs like 5V and 3.3V. The LM2594M-12 specifically targets applications requiring a reliable 12V rail. It shares architectural similarities with other buck regulators but offers integrated simplicity for standard voltage conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594M-ADJ: Adjustable version requiring external resistors for 12V setting. LM2594MX-12/NOPB: Texas Instruments equivalent in SOIC-8 package. LM2594DADJR2G: ON Semiconductor adjustable alternative.