Datasheet LT3663 (Analog Devices) - 4

LT3663
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. VIN Undervoltage Lockout VIN Overvoltage Lockout VIN Shutdown Current
8.0 42 800 VRUN = 0V 41 7.5 700 RISING 40 RISING 7.0 600 39 6.5 500 38 TAGE (V) FALLING TAGE (V) FALLING 6.0 37 400 36 CURRENT (µA) 5.5 300 INPUT VOL INPUT VOL 35 V IN 5.0 200 34 4.5 100 33 4.0 32 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 TEMPERATURE (°C) TEMPERATURE (°C) VIN VOLTAGE (V) 3663 G03 3663 G06 3663 G08
RUN Pin Current Output Current Limit Output Current Limit
45 1.20 6 RILIM = 36.5k 40 RILIM = 28.7k 1.15 5 35 1.10 30 4 1.05 25 TAGE (V) 1.00 3 20 0.95 15 2 RUN PIN CURRENT (µA) OUTPUT VOL 0.90 10 OUTPUT CURRENT LIMIT (A) 1 5 0.85 0 0.80 0 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 150 0 0.2 0.4 0.6 0.8 1 1.2 1.4 RUN PIN VOLTAGE (V) TEMPERATURE (°C) OUTPUT CURRENT (A) 3663 G11 3663 G04 3663 G12
Switching Frequency Minimum Switch On-Time Feedback Voltage
1.6 140 0.84 1.5 120 LT3663 0.82 1.4 100 1.3 80 TAGE (V) 0.80 1.2 60 1.1 40 FEEDBACK VOL 0.78 SWITCHING FREQUENCY (MHz) LT3663-X MINIMUM SWITCH-ON TIME (ns) 1.0 20 0.9 0 0.76 –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) 3663 G02 3663 G10 3663 G05 3663fc 4 For more information www.linear.com/LT3663 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Operation Applications Information Package Description