DEMO BOARD QUICK START GUIDE DC415 HIGH EFFICIENCY SEPIC CONVERTER LTC1871 3.5 100 3.0 95 2.5 90 EFFICIENCY (%) IOUT (A) VIN = 5V 2.0 1.5 1.0 VIN = 12V VIN = 15V 85 80 75 0.5 70 0 4 8 VIN (V) 12 16 0 0.5 1 1.5 IOUT (A) 2 2.5 3 1 DEMO BOARD QUICK START GUIDE DC415 HIGH EFFICIENCY SEPIC CONVERTER + + – – + LOAD – – – + + + – 2