LM2598SX-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2598SX-12/NOPB is a SIMPLE SWITCHER step-down switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed output voltage of 12 V at a maximum current of 1 A. The device integrates a 150 kHz fixed-frequency oscillator and features internal frequency compensation for simplified design. It utilizes a TO-263-8 (D2PAK) surface-mount package, supporting operation from -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a monolithic switching regulator designed for high-efficiency step-down conversion
• Includes internal frequency compensation to minimize external component count
• Features a fixed 150 kHz switching frequency for compact passive size requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation modules
• Pre-regulators for switching regulators
• Efficient buck converters for battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix /NOPB indicates lead-free and RoHS compliance. Confirm the specific package variant matches the required footprint. Check for obsolescence notices or PCN updates regarding assembly or sourcing changes before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12 V output is required from a wide input range up to 40 V. Ensure the application demands a continuous load current within 1 A limits. Consider thermal management requirements due to the power dissipation characteristics inherent in linear-like dropout regions during high differential voltage applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2598 series of SIMPLE SWITCHER regulators. It shares architectural similarities with other members like the LM2598SX-5.0 but differs in fixed output voltage configuration. The series is characterized by integrated power switches and control logic for standalone DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2598SX-12/NOPB serves as a direct replacement for older National Semiconductor versions such as LM2598SX-12. Verify pinout compatibility and thermal performance when substituting across manufacturer generations.