SPX3940 Series 3.3 V 1 A Surface Mount Low Dropout Voltage Regulator - SOT-223-3
LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) SOT-223 T/R
Fixed Positive LDO Regulator, 3.3V, 0.55V Dropout, PDSO4, LEAD FREE, TO-261AA, SOT-223, 3 PIN
SPX3940 Series 1.8 V 1 A Surface Mount Low Dropout Voltage Regulator - SOT-223-3