Linear Technology
DC1209A - LT3060EDC Demo Board | Low Noise, Low Dropout, Micropower Linear Regulator, 2.1V ≤ VIN ≤ 45V, Vout = 1.2V/1.5V/1.8V/2.0V/2.5V/3.3V/5V @ 100mA
Manual
LT3060 - Product Info
LTspice - Software