LDO

XL78L05A100 mA Positive Voltage Regulators SOP-8 5 1 5 Datasheet
XL217Low current 1.2 to 37 V adjustable voltage regulators SOP-8 1.25 3 1.2V-38V Datasheet
XL317Adjustable Voltage Regulator SOP-8 1.25 3 1.2V-38V Datasheet