TPS2590RSAR

Overview

The TPS2590RSAR is a high-current load switch from Texas Instruments, operating within a 3-V to 20-V input range. It features an integrated eFuse with a typical on-resistance of 30mΩ and supports output currents between 2A and 5A. The device provides comprehensive protection including overcurrent, reverse current, and thermal shutdown. It utilizes a QFN (RSA) package for compact integration in power distribution systems requiring robust hot-swap capabilities.

Feature Summary

• Integrated eFuse functionality for superior protection against fault conditions
• Supports hot-swap operations on buses up to 20 V
• Low on-resistance design minimizes power loss during conduction
• Built-in thermal and overcurrent protection mechanisms

Applications

• Hot-swap power management in industrial equipment
• High-current load switching in server backplanes
• Power distribution units requiring bus protection
• Embedded systems needing robust input protection

Procurement Notes

Verify the specific revision letter suffix (e.g., RSAT vs RSAR) as it may indicate tape-and-reel packaging variations or minor manufacturing updates. Confirm the exact voltage and current ratings required for your application against the official datasheet specifications. Ensure compatibility with your system's thermal management requirements given the QFN package constraints.

Selection Notes

Select this component when a highly integrated solution for hot-swap applications is required. It is suitable for designs needing precise current limiting and reverse current blocking without external discrete components. Consider the 30mΩ on-resistance for efficiency calculations and ensure the QFN package fits your PCB layout constraints.

Part Context

This part belongs to the TPS2590 family of high-current load switches. It is designed to replace traditional discrete MOSFET-based solutions by integrating control logic, drivers, and protection circuits into a single small footprint. The RSAR suffix typically denotes a specific reel quantity or packaging variant within the standard product line.

Replacement Considerations

Direct substitutes include other parts from the TPS259x family such as the TPS2590RSAT. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Consult the manufacturer's cross-reference guide for validated alternatives.