2.8V 0.2A LDO Regulator, WLCSP, 4-Pin, Pos
IC VREG 2.8 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PBGA4, 0.76 X 0.76 MM, 0.47 MM HEIGHT, 0.40 MM PITCH, GREEN, WLCSP-4, Fixed Positive Single Output LDO Regulator
Now Nexperia LD6806CX4/28H - Fixed Positive Ldo Regulator, 2.8V, 0.1V Dropout, PBGA4