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Module based on the TPS2116 enabling automatic switching between two 1.6 - 5.5 V power sources with output through a USB Type-C connector, without USB priority, supporting up to 2.5 A continuous current and reverse current blocking. By default, it selects the higher input voltage with the option to switch between VIN1 and VIN2 by control signal. Pololu 3729
The Pololu 3729 module enables automatic switching between two power sources in the 1.6 - 5.5 V range using the TPS2116 from Texas Instruments. The device provides seamless switchover without interruption of the output supply and blocks reverse current into both inputs, protecting connected power sources. The board can be used in embedded systems, portable devices, IoT projects, and applications requiring redundant power supply paths.

By default, the multiplexer selects the higher of the two input voltages. Configuration allows forced switching from VIN1 to VIN2 using a control signal or automatically when VIN1 falls below a preset threshold. The board also breaks out a USB Type-C connector that can supply the non-preferred VIN2 rail. Integrated low Rds(on) MOSFETs allow operation with up to 2.5 A of continuous current while maintaining high efficiency.
Power connections without USB Power connections with USB

Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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Module based on the TPS2116 enabling automatic switching between two 1.6 - 5.5 V power sources with output through a USB Type-C connector, with USB priority, supporting up to 2.5 A continuous current and reverse current blocking. In priority mode, it prefers USB power with the option to switch between VIN1 and VIN2 by control signal. Pololu 3728
No product available!
Module based on the TPS2116 enabling automatic switching between two 1.6 - 5.5 V power sources with output through a USB Type-C connector, without USB priority, supporting up to 2.5 A continuous current and reverse current blocking. By default, it selects the higher input voltage with the option to switch between VIN1 and VIN2 by control signal. Pololu 3729
No product available!
Module based on the TPS2116 enabling automatic switching between two 1.6 - 5.5 V power sources with output through a USB Type-C connector, without USB priority, supporting up to 2.5 A continuous current and reverse current blocking. By default, it selects the higher input voltage with the option to switch between VIN1 and VIN2 by control signal. Pololu 3729