Torex XC6213B282GR Linear Voltage Regulator, 2.8V, 120mA, 4-Pin USP-4
Fixed Positive LDO Regulator, 2.8V, CMOS, PDSO4,
1.8V LDO Regulator, SSOT-24, 4-Pin, 0.12A, 2% Voltage Tolerance