DC857A - LT3481EMSE/EDD Demo Board | 2 Circuits, Integrated Boost Diode, 4.5V ≤ VIN ≤ 34V, Vout1 = 5V @ 2A; and 8.5V ≤ VIN ≤ 22V, Vout2 = 3.3V @ 2A
Manual LT3481 - Product Info LTspice - Software