LM2598SX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2598SX-5.0/NOPB is a SIMPLE SWITCHER fixed step-down switching regulator from Texas Instruments, housed in a TO-263-8 (D2PAK) surface-mount package. It accepts an input voltage range of 4.5 V to 40 V and provides a fixed 5.0 V output at a maximum current of 1 A. Operating with a typical switching frequency of 150 kHz, the device integrates internal frequency compensation and a fixed-frequency oscillator. It supports an operating junction temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates internal frequency compensation and a fixed-frequency oscillator for simplified design
• Includes external shutdown functionality for low-power standby modes
• Features thermal shutdown and current limit protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• On-card regulation modules
• Battery-powered equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'SX' confirms the Digi-Reel or tape-and-reel packaging format rather than standard tube packaging. Confirm the 'NOPB' designation indicates lead-free and RoHS compliance. Ensure the specific output voltage matches the required system rail, as other variants exist within the LM2598 family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from a bus voltage up to 40 V with a load current not exceeding 1 A. The TO-263 package offers thermal advantages over smaller footprints. Consider the 150 kHz switching frequency for balancing component size against noise requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2598 series of SIMPLE SWITCHER regulators, which are designed to reduce the number of external components needed for DC/DC conversion. Unlike the higher-current LM2599 or lower-current LM2596, the LM2598 is optimized for moderate current applications requiring robust protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2598S-5.0/NOPB is a pin-compatible through-hole alternative. LM2596SX-5.0/NOPB and LM2599SX-5.0/NOPB share the same package but differ in maximum output current ratings.