From $0.24 • 10 k+ units available from Quarktwin Electronic Components
LDO Regulator Pos 3.9V 0.05A 5-Pin SOT-23 T/R
Linear Regulator Positive 3.9V 50mA 5-Pin SOT-23 T/R
Standard Regulator Pos 5.9V 0.075A 5-Pin SOT-23 T/R
Standard Regulator Pos 4.9V 0.065A 5-Pin SOT-23 T/R
LDO Regulator Pos 3.8V 0.05A 5-Pin SOT-23 T/R
Standard Regulator Pos 3.7V 0.05A 5-Pin SOT-23 T/R
From $0.25 • 1 k+ units available from Quarktwin Electronic Components
Standard Regulator Pos 3.9V 0.05A 4-Pin(3+Tab) SOT-89 T/R