TPS2111PW

Overview

The TPS2111PW is an autoswitching power multiplexer manufactured by Texas Instruments, designed for seamless source selection in portable electronics. It features a single output with a maximum continuous current of 1.25 A and supports input voltages ranging from 2.8 V to 5.5 V. The device utilizes N-channel internal switches housed in an 8-TSSOP package. Key electrical parameters include a typical on-resistance of 120 mΩ per input path, a supply current of 55 µA, and a maximum turn-on delay of 1 ms. It operates reliably within a temperature range of -40°C to +85°C.

Feature Summary

• Autoswitching logic automatically selects the active power source based on voltage levels without external control signals.
• Integrated N-channel MOSFETs provide low on-resistance for efficient power transfer between sources.
• Low quiescent current consumption ensures minimal battery drain during standby or operation.

Applications

• Handheld mobile devices requiring dual-power source management
• Portable consumer electronics with backup power switching needs
• Battery-powered systems utilizing primary and secondary power inputs

Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-8 package variant when sourcing. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Ensure the ordering part number matches the exact Texas Instruments designation to avoid pinout or functional mismatches with similar multiplexer variants.

Selection Notes

Select this component when a compact solution for automatic power source switching is required for low-voltage applications. It is suitable for designs needing a single output from two inputs with minimal external components. Consider the 1.25 A current limit and 5.5 V maximum input voltage to ensure compatibility with the system's power architecture.

Part Context

The TPS2111PW belongs to the TPS211x family of autoswitching power muxes from Texas Instruments. This series provides integrated solutions for managing multiple power sources in space-constrained environments. The PW suffix specifically denotes the surface-mount TSSOP-8 package, distinguishing it from other form factors like DSBGA available in related models such as the TPS2115.

Replacement Considerations

Public confirmed substitute part numbers include TPS2111PWR (reel variant) and TPS2113PW (higher current capability). Verify pin-to-pin compatibility and electrical parameter alignment before substitution.