TPS2112APWR

Overview

The TPS2112APWR is an autoswitching power multiplexer manufactured by Texas Instruments, designed for efficient power distribution in compact electronic systems. It features a single output sourced from two inputs within a voltage range of 2.8 V to 5.5 V. The device supports a maximum output current of 750 mA with a typical on-resistance of 120 mΩ per input. Key timing parameters include a maximum turn-on delay of 500 µs and a maximum turn-off delay of 3 ms. Operating reliably across temperatures from -40°C to +85°C, it utilizes an 8-pin TSSOP surface-mount package.

Feature Summary

• Automatically selects the highest voltage source among two inputs without external control logic
• Provides seamless switchover between power sources to maintain continuous system operation
• Integrates internal N-channel MOSFETs for low conduction loss and high efficiency

Applications

• Battery backup systems requiring automatic source selection
• Portable consumer electronics with dual power inputs
• Industrial equipment needing redundant power supply configurations

Procurement Notes

Verify the specific suffix 'PWR' confirms the tape-and-reel packaging format when ordering. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the manufacturer part number against official distributor catalogs to confirm authenticity and traceability before finalizing procurement contracts.

Selection Notes

Select this component when designing circuits requiring automatic power path management between two voltage rails. It is suitable for applications where minimizing board space is critical due to its small footprint. Consider the 750 mA current limit and 5.5 V maximum input voltage to ensure compatibility with the target system's power requirements.

Part Context

This device belongs to the TPS211x family of autoswitching power muxes from Texas Instruments. It shares functional similarities with the TPS2113 but differs in current handling capabilities. The series is engineered for portable devices, offering a compact solution for managing multiple power sources efficiently while maintaining system uptime during source transitions.

Replacement Considerations

The TPS2113APWR serves as a direct alternative within the same family, offering similar functionality with higher current capacity.