TPS2112PWR

Overview

The TPS2112PWR is an autoswitching power multiplexer manufactured by Texas Instruments, designed for dual-input to single-output power distribution. It operates within a supply voltage range of 2.8 V to 5.5 V and supports a maximum output current of 750 mA. The device features a typical on-resistance of 120 mΩ with a maximum of 140 mΩ. Key timing parameters include a maximum turn-on delay of 500 µs and a maximum turn-off delay of 3 ms. It functions within an operating temperature range of -40°C to +85°C and is housed in an 8-pin TSSOP surface-mount package.

Feature Summary

• Automatically selects the highest available input voltage source without external control signals
• Provides seamless transition between power sources to maintain system uptime
• Integrates internal N-channel MOSFET switches for compact design

Applications

• Handheld and mobile devices requiring redundant power inputs
• Battery backup systems utilizing primary and secondary power sources
• Portable electronics needing uninterrupted power during source switching

Procurement Notes

Verify the specific suffix 'PWR' confirms the tape-and-reel packaging format and commercial grade temperature rating. Confirm RoHS compliance status matches current manufacturing notices. Ensure the ordering part number aligns with the required quantity per reel specifications provided by authorized distributors.

Selection Notes

Select this component when automatic source selection is required for two power rails within the 2.8 V to 5.5 V range. It is suitable for applications demanding low quiescent current and minimal footprint. Compare against TPS2113 variants if higher current capacity or different switching speeds are necessary for the specific load requirements.

Part Context

This device belongs to the TPS211x family of autoswitching power muxes from Texas Instruments. It shares architectural similarities with the TPS2110 and TPS2111 but offers specific current handling and switching characteristics tailored for portable applications. The PWR suffix indicates a specific reel-based packaging option within the broader TPS2112 product line.

Replacement Considerations

TPS2112APWR is a verified equivalent offering identical electrical performance and pinout configuration. Verify that any substitute maintains the same 8-TSSOP package dimensions and thermal characteristics to ensure mechanical compatibility.