TPS2115ADRBT

Overview

The TPS2115ADRBT is an autoswitching power multiplexer manufactured by Texas Instruments, designed for efficient power distribution in portable electronics. It features a 2:1 input-to-output ratio with N-channel internal switches and supports a supply voltage range of 2.8 V to 5.5 V. The device provides a maximum output current of 2 A and includes adjustable current limiting from 630 mA to 2 A. Key electrical parameters include a maximum on-resistance of 110 mΩ, a maximum turn-on delay of 1 ms, and a maximum turn-off delay of 5 ms. It operates within a temperature range of -40°C to +85°C and is housed in an 8-SON (3x3) package.

Feature Summary

• Autoswitching logic automatically selects the optimal power source based on voltage levels without external control signals.
• Integrated N-channel FETs provide low on-resistance for high efficiency and minimal power loss during conduction.
• Adjustable current limit allows protection against overcurrent conditions across a wide configurable range.
• Low quiescent current consumption ensures extended battery life in mobile and handheld applications.

Applications

• Battery backup switching in mobile devices
• Power path management in handheld equipment
• Source selection in portable consumer electronics

Procurement Notes

Verify the specific suffix 'DRBT' against the official Texas Instruments datasheet to confirm tape-and-reel packaging specifications and moisture sensitivity level. Ensure compatibility with surface-mount assembly processes and check for any recent product change notices regarding assembly sites or materials that may affect long-term availability.

Selection Notes

Select this component when designing systems requiring automatic power source prioritization between two inputs. Consider the 2.8 V to 5.5 V operating range and 2 A current capability relative to load requirements. Evaluate the 8-SON package size constraints and thermal performance needs within the specified industrial temperature range.

Part Context

The TPS2115 series belongs to Texas Instruments' portfolio of power switch ICs focused on power distribution. This specific model functions as an OR controller and source selector, enabling seamless transitions between primary and backup power sources in compact electronic designs.

Replacement Considerations

Consult the official TI documentation for qualified substitute part numbers within the TPS2115 family or compatible power mux alternatives. Verify pinout compatibility and electrical parameter equivalence before implementation.