Datasheet LT3570 (Analog Devices) - 5

LT3570
TYPICAL PERFORMANCE CHARACTERISTICS VIN1 Quiescent Current VIN2 Quiescent Current VIN3 Quiescent Current vs Temperature vs Temperature vs Temperature
3.5 4.0 900 3.0 3.5 800 700 3.0 2.5 600 2.5 2.0 500 2.0 1.5 400 CURRENT (mA) CURRENT (mA) 1.5 CURRENT (μA) 300 1.0 1.0 200 0.5 0.5 100 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3570 G04 3570 G05 3570 G06
Bias Pin Current vs Temperature SHDN Pin UVLO vs Temperature SHDN Pin Current vs Voltage
3.0 1.50 50 2.5 1.25 40 2.0 1.00 30 1.5 0.75 PIN VOLTAGE (V) 20 CURRENT (mA) CURRENT (μA) 1.0 0.50 SHDN 10 0.5 0.25 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 TEMPERATURE (°C) TEMPERATURE (°C) VOLTAGE (V) 3570 G07 3570 G08 3570 G09
SW1 Saturation Voltage SW1 Current Limit vs Duty Cycle vs SW1 Current
3.0 350 2.5 300 250 2.0 200 1.5 150 CURRENT (A) VOLTAGE (mV) 1.0 100 0.5 TJ = 125°C T 50 J = 125°C TJ = 25°C TJ = 25°C TJ = –40°C TJ = –40°C 0 0 0 10 20 30 40 50 60 70 80 90 100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 DUTY CYCLE (%) CURRENT (A) 3570 G10 3570 G11 3570fb 5