The BSO220N03MDGXUMA1 is an Infineon OptiMOS dual N-channel MOSFET rated for 30 V drain-to-source and 6 A continuous drain current per channel at 25 °C case temperature. The logic-level gate threshold (2.1 V max at 250 µA) means a 5 V logic output can fully enhance the channel without a separate gate-driver IC. For 3.3 V logic, a small level-shifter or a driver with 5 V output is still needed to hit the 10 V gate drive that achieves the rated Rds(on).
Parametric deep-dive — gate charge, capacitance, and switching speed
Total gate charge is 10 nC at 10 V gate drive. For a 500 kHz switching frequency, the average gate-drive current is 10 nC × 500 kHz = 5 mA — easily supplied by a standard MOSFET driver or a microcontroller GPIO with a series resistor. Input capacitance is 800 pF at 15 V drain-to-source. This capacitance, combined with the gate-drive source impedance, sets the turn-on and turn-off delay. A 10 Ω gate resistor yields an RC time constant of 8 ns, so the switching edges stay clean for most hard-switched applications below 1 MHz.