Datasheet LTM8042, LTM8042-1 (Analog Devices) - 5

LTM8042/LTM8042-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. LTM8042 Efficiency vs VIN, Buck Mode, Efficiency vs VIN, Buck Mode, Efficiency vs VIN, Buck Mode, 10.1V at 1A LED String 13.4V at 1A LED String 16.7V at 1A LED String
95 97 97 94 96 96 93 95 95 92 94 94 91 93 93 90 92 92 89 91 91 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 88 90 90 87 89 89 86 88 88 85 87 87 12 14 16 18 20 22 24 26 28 30 32 34 15 17 19 21 23 25 27 29 31 33 19 21 23 25 27 29 31 33 VIN (V) VIN (V) VIN (V) 80421 G10 80421 G11 80421 G12
Efficiency vs VIN, Buck-Boost Efficiency vs VIN, Buck-Boost Efficiency vs VIN, Buck-Boost Mode, 3.6V at 1A LED String Mode, 6.8V at 1A LED String Mode, 10.1V at 1A LED String
85 90 87 80 86 85 85 75 84 70 80 83 EFFICIENCY (%) 65 EFFICIENCY (%) EFFICIENCY (%) 82 75 60 81 55 70 80 4 6 8 10 12 14 16 18 20 22 24 26 28 30 8 10 12 14 16 18 20 22 24 26 12 13 14 15 16 17 18 19 20 21 22 23 24 VIN (V) VIN (V) VIN (V) 80421 G13 80421 G14 80421 G15
Efficiency vs VIN, Buck-Boost Maximum LED Current Mode, 13.4V at 1A LED String vs Input Voltage, Boost Operation
90 1200 89 88 1000 87 800 86 85 600 84 7.4V AT 1A EFFICIENCY (%) 10.9V AT 1A 83 400 14.5V AT 1A 82 18.1V AT 1A MAXIMUM LED CURRENT (mA) 200 21.4V AT 1A 81 24.8V AT 1A 28.2V AT 1A 80 0 15 16 17 18 19 20 0 5 10 15 20 25 30 VIN (V) INPUT VOLTAGE (V) 80421 G16 80421 G17 80421fb For more information www.linear.com/LTM8042 5