Very simple USB-C Power Delivery trigger board based on the IP2721 that requests the maximum voltage (up to 20V) from the power supply.
A slightly different approach to USB-C power delivery by combining a PD maximum voltage trigger (IP2721, up to 20V) and a buck converter (MP2307). The output voltage can be selected via the voltage divider (R5 + R6). The maximum output current is 3A.
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