TPS2113PWR

Overview

The TPS2113PWR is an autoswitching power multiplexer manufactured by Texas Instruments, designed for seamless source selection between two input power rails. It features a single output capable of delivering up to 1.25 A continuous current, with configurable current limiting ranging from 630 mA to 2 A. The device operates within a supply voltage range of 2.8 V to 5.5 V and maintains a maximum on-resistance of 110 mΩ. It utilizes an 8-pin TSSOP package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Autoswitching logic automatically selects the highest available input voltage without external control signals
• Configurable current limit protection prevents overload conditions during fault events
• Low on-resistance minimizes power loss and thermal generation in high-current applications

Applications

• Portable handheld devices requiring redundant power sources
• Mobile equipment utilizing battery and USB charging inputs
• Systems needing automatic switchover between primary and backup power rails

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-8 tape-and-reel packaging configuration. Confirm RoHS compliance status through the official manufacturer datasheet or component ordering information. Ensure the selected variant matches the required current limit settings and package dimensions for your PCB layout.

Selection Notes

Select this component when automatic source selection between two voltage rails is required without microcontroller intervention. Consider the 1.25 A output capability and low on-resistance for efficient power distribution. Verify that the 2.8 V to 5.5 V operating range aligns with your system's input voltage specifications and thermal requirements.

Part Context

This part belongs to the TPS2113A series of power multiplexers, which provides intelligent power path management. It serves as a solution for managing multiple power inputs in compact electronic designs, ensuring uninterrupted operation by seamlessly switching between available sources based on voltage priority.

Replacement Considerations

The TPS2112A is a related variant within the same family, offering similar functionality but with different current handling capabilities. Verify pin compatibility and electrical specifications before substitution.