LM2594MX-3.3/NAK2

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594MX-3.3/NAK2 is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, housed in an 8-SOIC package. It operates with a fixed 3.3V output and supports up to 500mA load current. The device functions within an input voltage range of 4.5V to 40V and utilizes a 150kHz switching frequency. It features a maximum operating temperature of +125°C and a typical quiescent current of 5mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic Buck converter topology for efficient step-down regulation
• Fixed 3.3V output configuration eliminating external feedback resistor networks
• Internal power switch rated for 0.5A continuous output current
• Operates at a fixed 150kHz switching frequency for compact passive component sizing

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Battery-powered systems requiring regulated 3.3V rails
• General-purpose low-power embedded electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the NAK2 suffix against the official datasheet to confirm it denotes the standard SOIC-8 tape-and-reel packaging variant. Ensure the component matches the specific pinout and thermal characteristics defined by Texas Instruments for this marking code. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required without external programming resistors. It is suitable for designs needing a simple buck solution with moderate current capability. Consider the 150kHz frequency for trade-offs between efficiency and passive size. Verify that the input voltage remains within the 4.5V to 40V operational window for stable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2594 family of SIMPLE SWITCHER regulators. It shares core architecture with variants like the LM2594MX-5.0/NOPB but differs in its fixed output voltage setting. The NAK2 suffix identifies the specific packaging and marking configuration used by Texas Instruments for distribution.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct functional substitutes include other LM2594 series parts with compatible output voltages, such as the LM2594MX-5.0/NOPB or LM2594MX-12/NOPB, provided the system design accommodates the different fixed voltage levels.