Demonstration circuit 1209A is a Micropower, low dropout linear regulator featuring LT3060, which comes in an 8-lead TSOT23 or 2mm × 2mm DFN package. The DC1209A has an input voltage range from 2.1V to 45V, and is capable of delivering up to 100mA output current. The jumper-selectable output voltage can be set to 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V or a user-defined value. An external capacitor at REF/BYP pin provides low noise reference and programmable output soft-start functionality. The LT3060’s quiescent current is merely 40µA and provides fast transient response with a minimum 2.2µF output capacitor.