LM2594HVMX-ADJ/E5002902

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594HVMX-ADJ/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a high-voltage step-down DC/DC regulator. It operates with an input voltage range of 4.5V to 60V and provides a single adjustable output ranging from 1.2V to 37V. The device delivers a maximum output current of 500mA at a fixed switching frequency of 150kHz (0.15MHz). Packaged in an 8-pin SOIC (D) surface-mount format measuring 5mm x 3.99mm x 1.5mm, it supports an extended operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch enables direct connection to high-side bus voltages without external level shifting
• Fixed 150kHz switching frequency allows for the use of compact passive components
• Adjustable output voltage capability via external resistor network
• Internal thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial control systems
• High-voltage battery-powered equipment power management
• General-purpose step-down conversion in automotive electronics
• Isolated DC/DC converter bias supply generation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix configuration when ordering, as variations such as NOPB indicate lead-free status and specific tape-and-reel packaging options. Confirm that the E5002902 code corresponds to the intended distributor-specific part number or internal tracking identifier rather than a functional variant. Ensure the SOIC package width matches your PCB footprint requirements before finalizing procurement documents.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard 40V limits but output currents remain below 1A. The fixed 150kHz frequency balances efficiency and component size effectively for moderate power applications. Consider the thermal performance of the SOIC package under full load; adequate copper area on the PCB is necessary to dissipate heat within the specified 125°C junction temperature limit.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2594 family of SIMPLE SWITCHER regulators, designed for simplicity and reliability. The HVM designation specifically denotes the High Voltage version capable of handling up to 60V inputs, distinguishing it from lower-voltage variants. It serves as a robust solution for replacing linear regulators in high-differential voltage scenarios to improve system efficiency.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible substitutes include the LM2594HV-ADJ/NOPB and LM2594HVM-ADJ/NOPB. Verify that replacement parts maintain the same 60V input rating and 500mA current capacity. Ensure the alternative package type matches the existing 8-SOIC footprint to avoid PCB redesign.