Datasheet LT3082 (Analog Devices) - 5

LT3082
TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage Dropout Voltage Current Limit
1.4 1.6 400 1.4 1.2 ILOAD = 200mA 350 ) (V) (V) TJ = –55°C OUT 1.2 OUT 300 1.0 I T LOAD = 100mA – V J = 25°C – V IN 1.0 IN 250 0.8 0.8 TJ = 125°C 200 0.6 0.6 150 0.4 CURRENT LIMIT (mA) 0.4 100 DROPOUT VOLTAGE (V 0.2 DROPOUT VOLTAGE (V 0.2 50 TJ = 25°C 0 0 0 0 25 50 75 100 125 150 175 200 –50 –25 0 25 50 75 100 125 150 0 2 4 6 8 10 LOAD CURRENT (mA) TEMPERATURE (°C) INPUT-TO-OUTPUT DIFFERENTIAL VOLTAGE (V) 3082 G10 3082 G09 3082 G11
Current Limit Load Transient Response
500 200 450 150 400 100 350 50 300 0 250 –50 200 CURRENT (mA) –100 CURRENT LIMIT (mA) 150 LOAD –150 250 100 OUTPUT VOLTAGE DEVIATION (mV) V 0 50 IN = 7V VOUT = 0V 0 50 100 150 200 250 300 350 400 450 500 0 TIME (μs) –50 –25 0 25 50 75 100 125 150 VOUT = 1V CSET = 0.1μF TEMPERATURE (°C) C ΔI 3082 G12 IN = 1μF CERAMIC LOAD = 10mA to 200mA COUT = 2.2μF CERAMIC 3082 G13
Line Transient Response Turn-On Response
60 2.0 40 1.5 20 1.0 0 0.5 OUTPUT VOLTAGE DEVIATION (mV) –20 0 OUTPUT VOLTAGE (V) VOLTAGE (V) –40 6 VOLTAGE (V) 4 INPUT INPUT 4 2 2 0 0 0 50 100 150 200 250 300 350 400 450 500 0 10 20 30 40 50 60 70 80 90 100 TIME (μs) TIME (μs) VOUT = 1V CSET = 0.1μF COUT = 2.2μF CERAMIC CSET = 0 CIN = 1μF CERAMIC ILOAD = 10mA RSET = 100k RLOAD = 5Ω COUT = 2.2μF CERAMIC 3082 G14 3082f 5