onsemi MC34166THG, 1 Buck Boost Switching, Switching Regulator 3A, 5 V, 72 kHz 5-Pin, TO-220
271mm.onsemi MC34166THG, 1 Buck Boost Switching, Switching Regulator 3A, 5 V, 72 kHz 5-Pin, TO-220, Regulator Function: Boost/Buck Controller, Inverting, Line Regulation: 3 mV, 5 mV, 23 mV, Load Regulation: 2 mV, 3 mV, 4 mV, Mounting Type: Through Hole, Output Type: Fixed, Switching Regulator: Yes, Dimensions: 10.