TPS2112PW

Overview

The TPS2112PW is an autoswitching power multiplexer manufactured by Texas Instruments, designed for seamless source selection between two input lines. 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 per input channel. Key timing parameters include a maximum turn-on delay of 500 µs and a maximum turn-off delay of 3 ms. It is housed in an 8-pin TSSOP package and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Autoswitching capability enables automatic selection of the active power source based on voltage levels without external control logic.
• Integrated N-channel internal switches provide low conduction loss and efficient power transfer from selected input to output.
• Compact surface-mount packaging facilitates integration into space-constrained portable electronic designs.

Applications

• Battery backup systems requiring automatic switchover between primary and secondary power sources
• Portable handheld devices utilizing multiple power inputs such as USB and battery cells
• Embedded systems needing redundant power supply configurations for enhanced reliability

Procurement Notes

Verify the specific suffix 'PW' confirms the TSSOP-8 package variant when ordering. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure the component meets environmental regulations applicable to your region. Cross-reference the full part number with the latest Texas Instruments product data sheet to validate manufacturing status and availability.

Selection Notes

Select this component when a dual-input power mux with 750 mA capacity is required. Compare against the TPS2113 series if higher current ratings are necessary. Verify that the 2.8 V minimum input voltage aligns with your system's lowest expected rail. Ensure the 8-TSSOP footprint matches your PCB layout constraints and thermal requirements.

Part Context

This device belongs to the TPS211x family of autoswitching power multiplexers from Texas Instruments. It shares functional similarities with the TPS2113 but offers lower current handling capabilities. The family is designed for applications requiring simple, reliable power path management without complex control interfaces.

Replacement Considerations

TPS2112APWR is a verified equivalent offering identical electrical specifications and pinout compatibility within the same package type.