Datasheet LTM8042, LTM8042-1 (Analog Devices) - 8

LTM8042/LTM8042-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. LTM8042 Junction Temperature Rise Junction Temperature Rise Junction Temperature Rise vs Load, Buck-Boost Mode, vs Load, Buck-Boost Mode, vs Load, Buck-Boost Mode, 10.9V at 1A LED String 13.6V at 1A LED String 15.5V at 350mA LED String
50 60 25 45 40 50 20 35 12VIN 12VIN 40 30 16VIN 12V 15 IN 25 30 20 10 TEMPERATURE (°C) 15 20 TEMPERATURE (°C) TEMPERATURE (°C) 10 10 5 5 0 0 0 0 200 400 600 800 1000 0 200 400 600 800 1000 0 50 100 150 200 250 300 350 LED CURRENT (mA) LED CURRENT (mA) LED CURRENT (mA) 80421 G35 80421 G36 80421 G37
LTM8042/LTM8042-1 RUN Pin Current vs Voltage
160 140 120 100 80 60 RUN CURRENT (µA) 40 20 0 0 10 20 30 40 RUN VOLTAGE (V)
LTM8042-1
80421 G38
Efficiency vs VIN, Boost Operation, Efficiency vs VIN, Boost Operation, Efficiency vs VIN, Boost Operation, 6.7V at 350mA LED String 9.7V at 350mA LED String 12.6V at 350mA LED String
95 95 95 90 90 90 85 85 85 80 80 80 EFFICIENCY (%) 75 EFFICIENCY (%) 75 EFFICIENCY (%) 75 70 70 70 65 65 65 2 3 4 5 6 2.5 4.5 6.5 8.5 3 5 7 9 11 VIN (V) VIN (V) VIN (V) 80421 G39 80421 G40 80421 G41 80421fb 8 For more information www.linear.com/LTM8042