TPS2115PWRG4

Overview

The TPS2115PWRG4 is an autoswitching power multiplexer manufactured by Texas Instruments, designed for efficient power distribution in compact electronic systems. This device features a single output channel with an internal N-channel switch, providing a 2:1 input-to-output ratio for seamless source selection. It operates within a supply voltage range of 2.8 V to 5.5 V and supports a maximum continuous output current of 1.25 A. The component utilizes a TSSOP-8 surface-mount package, ensuring compatibility with automated assembly processes. Key electrical characteristics include a maximum on-resistance of 110 mΩ, a typical quiescent supply current of 55 µA, and a turn-on delay of 1 ms. It functions reliably across an extended temperature range from -40°C to +85°C, making it suitable for demanding industrial and consumer applications.

Feature Summary

• Autoswitching logic automatically selects the active power source based on voltage levels without external control signals
• Integrated N-channel MOSFET provides low on-resistance for minimal power loss during conduction
• Compact TSSOP-8 packaging facilitates space-constrained board layouts and high-density designs

Applications

• Portable handheld devices requiring redundant power sources
• Mobile equipment utilizing battery and adapter power inputs
• Embedded systems needing automatic power path management

Procurement Notes

Verify that the ordering suffix G4 confirms compliance with RoHS standards and restricts hazardous substances as per manufacturer specifications. Confirm the package designation matches the required TSSOP-8 footprint and pin configuration for your PCB layout. Ensure the operating voltage requirements align with the specified 2.8 V to 5.5 V range before integration into the final design.

Selection Notes

Select this component when designing systems that require automatic source switching between two power inputs without complex control logic. It is appropriate for applications where low standby current and small form factor are critical constraints. Consider the 1.25 A current limit and 110 mΩ resistance when evaluating thermal performance and efficiency requirements for the target load.

Part Context

This part belongs to the TPS2115 family of autoswitching power muxes from Texas Instruments. It serves as a specialized power management IC for distributing power from multiple sources to a single load. The device simplifies power architecture by eliminating the need for external diodes or complex switching controllers, offering a integrated solution for source selection and protection.

Replacement Considerations

Compatible substitutes within the same family include TPS2115APWR and TPS2115ADRB. Verify pinout compatibility and electrical parameters such as current rating and on-resistance before substitution. Ensure that any alternative part meets the same environmental and regulatory standards required for the application.