LM2594N-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594N-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a 150 kHz step-down voltage regulator. It provides a fixed 5 V output with a maximum current capability of 500 mA. The device supports an input voltage range from 4.5 V to 40 V. It utilizes a buck topology and is housed in an 8-pin MDIP package for through-hole mounting. The operational temperature range spans from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic switching regulator designed for high-efficiency step-down conversion
• Fixed internal feedback network ensures stable 5 V output without external adjustment components
• Includes built-in frequency compensation and thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring regulated lower voltages
• Pre-regulator stages for switch-mode power supplies
• Linear regulator replacement for improved efficiency in battery-powered applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free and RoHS compliance. Confirm the N designation corresponds to the through-hole MDIP package variant rather than surface-mount options. Ensure the part number includes the full suffix to distinguish between adjustable and fixed voltage versions within the LM2594 family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from an input source up to 40 V. It is suitable for designs prioritizing through-hole assembly and moderate current loads around 500 mA. Consider the LM2596 series if higher output currents are necessary, or the LM2594HV series for inputs exceeding 40 V.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2594 series of SIMPLE SWITCHER converters. It shares architectural similarities with the LM2574 but offers higher input voltage tolerance. The series is characterized by its simplicity, requiring minimal external components for operation, making it a standard choice for basic DC-DC conversion tasks in industrial and commercial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594N-ADJ/NOPB (Adjustable version)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2594N-5.0?

The maximum input voltage is 40 V.

Does the LM2594N-5.0 support external voltage adjustment?

No, it has a fixed 5 V output determined by the internal feedback network.