LM2594HVMX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594HVMX-12/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, operating as a step-down voltage regulator with a fixed 12V output. It supports an input voltage range of 4.5V to 60V and delivers up to 500mA of output current. The device integrates a 150kHz switching frequency and features a shutdown function for low standby power consumption. Packaged in an 8-SOIC surface-mount format, it operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch enables direct connection to standard 48V bus supplies
• Fixed 12V output eliminates external feedback resistor requirements
• Internal frequency compensation simplifies minimum external component count
• Thermal shutdown protection safeguards against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures requiring 48V to 12V conversion
• Point-of-load regulation for embedded systems
• Pre-regulation stages for downstream linear regulators
• Battery-powered equipment with wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'HVMX' confirms the high-voltage variant with SOIC-8 package and tape-and-reel delivery. Confirm 'NOPB' indicates lead-free and RoHS compliance. Cross-reference the manufacturer datasheet to ensure the fixed 12V output matches system requirements, distinguishing it from adjustable or other fixed voltage variants within the LM2594 family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from inputs up to 60V. The 500mA current rating suits moderate load applications. Consider the 150kHz switching frequency for balancing efficiency and filter size. Ensure thermal management accommodates the SOIC-8 package limitations under high differential voltage conditions compared to lower voltage series parts.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2594HV series, designed for high-input voltage buck applications. Differentiates from the standard LM2594 by supporting higher input voltages up to 60V. The 'MX' suffix denotes the SOIC-8 surface mount package, while '12' specifies the fixed 12V output configuration. This variant is optimized for cost-effective, compact power solutions in industrial and commercial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594HVMX-12/NOPB is the identical part number; variations may exist in manufacturing lot or minor packaging sub-types. Direct functional equivalents include other LM2594HV-12 variants with different package suffixes (e.g., HVS for TO-263). Verify pinout compatibility before substituting with non-TI buck converters.