LM2598SX-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2598SX-12 is a SIMPLE SWITCHER power converter, functioning as a 150-kHz step-down voltage regulator. It provides a fixed 12V output with a maximum current of 1A. The device accepts an input voltage range from 4.5V to 40V and operates within a junction temperature range of -40°C to 125°C. It utilizes a TO-263 (DDPAK-7) surface-mount package.

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 12V output without external adjustment components
• Operates at a 150 kHz switching frequency to minimize passive component size

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulator stages for linear post-regulators
• Efficient buck conversion for battery-powered equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against manufacturer documentation, as 'SX' typically denotes tape-and-reel packaging while other suffixes may indicate tube or cut-tape formats. Confirm that the 'SX' designation does not alter electrical characteristics compared to standard variants. Ensure compatibility with the intended PCB footprint for the TO-263 package.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from a 4.5V to 40V input source. It is suitable for applications needing up to 1A load current with minimal external circuitry. Consider thermal management requirements due to the single-ended topology and ensure the input voltage remains within the specified operational limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2598 family of SIMPLE SWITCHER regulators, which are designed to simplify power supply design by integrating the controller, switch, and freewheeling diode. The LM2598 series offers fixed output voltages including 3.3V, 5V, 12V, and adjustable versions, providing a robust solution for general-purpose DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2598S-12/NOPB is a documented equivalent offering identical electrical specifications in a tube package. LM2598SX-12/NOPB serves as a direct pin-compatible replacement with RoHS-compliant manufacturing processes.