STL6119 Datasheet, Semtron

a P-channel MOSFET pass transistor. Unlike similar designs using PNP pass transistors, P-channel MOSFETs require no base drive, which reduces quiescent current. PNPbased .

VIN VIN CIN 1uF GND STL6119 OFF ON EN VOUT VOUT COUT 13u.3FuF NC Fixed Type 1uF Adjustable Type STL6119 Rev.2.0.