DC1106A - LT3570EUF Demo Board | Buck + Boost + LDO Controller, 4V to 36Vin Buck with Vout1 = 3.3V@1A, 3.3V to 10Vin Boost with Vout2 = 12V@275mA, 100mA LDO
Manual LT3570 - Product Info LTspice - Software