The EPC2044 from Efficient Power Conversion is a GaN Power Transistor with Gate Threshold Voltage 0.8 to 2.5 V, Drain Source Voltage 100 V, Drain Source Resistance 7 to 10.5 milli-ohm, Continous Drain Current 9.4 A, Pulsed Drain Current 89 A. Tags: Die. More details for EPC2044 can be seen below.