ug324UG324: Class 2 Non-Isolated Buck Evaluation Board for the Si3404 Feedback Loop Phase and Gain Measurement Results (Bode Plots) | Building a more connectedUG324: Non-Isolated Buck Evaluation Board for the Si3404 The Si3404 non-isolated Buck evaluation board is a reference de-sn for a power supply in a Power over Ethernet (PoE)