TPS2115APW

Overview

The TPS2115APW 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 selectable inputs within a TSSOP-8 package. The device operates on supply voltages ranging from 2.8 V to 5.5 V and supports a maximum output current of 1.25 A. It includes adjustable current limiting capabilities spanning from 630 mA to 2 A, ensuring protection against overcurrent conditions. The component exhibits a maximum on-resistance of 110 mOhms, with a typical turn-on time of 1 ms and a turn-off time of 5 ms. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Autoswitching mechanism automatically selects the optimal input source based on voltage availability without external control signals.
• Integrated adjustable current limit provides flexible overcurrent protection tailored to specific load requirements.
• Low on-resistance minimizes power loss and heat generation during continuous operation.

Applications

• Power management in handheld and mobile devices
• Battery backup switching in portable electronics
• Source selection in embedded systems requiring redundant power

Procurement Notes

Verify that the part number suffix 'PW' corresponds to the TSSOP-8 tube packaging configuration. Confirm RoHS compliance status and lead-free specifications match project requirements. Ensure the selected variant aligns with the required thermal performance and current limiting settings for the target application environment.

Selection Notes

Select this component when a low-profile solution is needed for managing dual power sources in space-constrained designs. Consider its adjustable current limit feature for applications requiring precise load protection. Evaluate the 110 mOhm on-resistance against system efficiency targets and thermal constraints.

Part Context

This device belongs to the TPS2115A series of power multiplexers, which are optimized for portable applications. It serves as a critical interface between multiple power rails and system loads, enabling seamless transitions between primary and backup power supplies while maintaining system stability.

Replacement Considerations

The TPS2115APWR is a tape-and-reel alternative offering identical electrical characteristics and functionality. Verify package compatibility and handling requirements before substitution.