The EPC2053 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 3.1 to 3.8 milli-ohm, Continous Drain Current 48 A, Pulsed Drain Current 246 A. Tags: Die. More details for EPC2053 can be seen below.