Standard Regulator Pos 4.1V 0.065A 4-Pin(3+Tab) SOT-89 T/R
LDO Regulator Single 5V 16V 3.92V 4.08V 0.3V Dropout 3-Pin R-PSSO-F3
LDO Regulator Pos 4V 0.065A 4-Pin(3+Tab) SOT-89 T/R