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MP2236+CH224K, 15V to 5V power supply module

Overview

Figure 1 shows the original design,

originally intended for a course project to create a 5V power supply with lower ripple.
The input PD decoy chip uses a CH224K, a single-resistor configuration, with a decoy voltage of 15V. This can be modified, but care must be taken not to exceed the withstand voltage of the MP2236.
The MP2236 can be replaced with MP2225, MP2315, etc.
The original design differs slightly from the current version, mainly in the wiring of the Type-C interface.
A simple test was conducted using a cement resistor to check the ripple under open-circuit, 1A, and 5A output conditions.

Figure 2 shows the open-circuit output .

Figure 3 shows the 1A output.

Figure 4 shows the 5A output.

Design Files

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Update:2026-03-26 23:09:51

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