LM2598SX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2598SX-12/NOPB is a SIMPLE SWITCHER step-down switching regulator manufactured by Texas Instruments. It provides a fixed 12 V output with a maximum current of 1 A. The device operates within an input voltage range of 4.5 V to 40 V and features a fixed switching frequency of 150 kHz. It utilizes a TO-263 package for surface mount installation. The unit supports a shutdown function and functions as a positive, fixed-output regulator. The operational temperature range spans from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch eliminates the need for external components typically required in discrete designs.
• Fixed internal switching frequency simplifies external filter component selection and reduces overall design complexity.
• Built-in thermal shutdown protection safeguards the device against excessive junction temperatures during overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring efficient step-down conversion
• Before-the-line regulators for board-level DC/DC conversion
• Standard 5-V or 12-V switching supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific part number matches the required output voltage and current specifications for the target application. Confirm the package type aligns with the PCB footprint requirements. Ensure compliance with RoHS standards if environmental regulations apply. Check datasheet limitations regarding input voltage ranges and thermal management needs before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output at up to 1 A is required from a higher input voltage source. Consider the TO-263 package for adequate heat dissipation in surface mount layouts. Evaluate the 150 kHz switching frequency against EMI constraints and inductor size requirements. Verify that the input voltage remains within the specified 4.5 V to 40 V range under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family of switching regulators from Texas Instruments. It is designed to offer a complete solution for step-down voltage regulation with minimal external circuitry. The product integrates the control logic, oscillator, and power switch into a single monolithic IC, distinguishing it from older discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2598S-12/NOPB serves as a through-hole equivalent variant within the same functional family. Both devices share identical electrical characteristics and pinout configurations, differing primarily in the physical mounting style and package dimensions.