Datasheet LTC3630 (Analog Devices) - 6

LTC3630
Typical perForMance characTerisTics Quiescent VIN Supply Current Switch On-Resistance Switch On-Resistance vs Temperature vs Input Voltage vs Temperature
20 2.0 1.6 VIN = 12V VIN = 12V 1.8 1.4 16 1.6 1.2 1.4 TOP SLEEP 12 1.2 1.0 TOP 1.0 0.8 8 0.8 BOTTOM 0.6 SHUTDOWN SUPPLY CURRENT (µA) 0.6 BOTTOM V IN 0.4 4 SWITCH ON-RESISTANCE (Ω) 0.4 SWITCH ON-RESISTANCE (Ω) 0.2 0.2 0 0 0 –55 –25 5 35 65 95 125 155 0 10 20 30 40 50 60 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3630 G16 3630 G17 3630 G18
Switch Leakage Current RUN Comparator Threshold vs Temperature Voltage vs Temperature Operating Waveforms
14 1.30 VIN = 65V 12 SWITCH 1.25 VOLTAGE 10 RISING 25V/DIV 8 1.20 OUTPUT 6 VOLTAGE 50mV/DIV 4 1.15 SW = 65V INDUCTOR 2 FALLING CURRENT 500mA/DIV 0 1.10 –2 SWITCH LEAKAGE CURRENT (µA) 3630 G21 SW = 0V 1.05 VIN = 65V 10µs/DIV –4 RUN COMPARATOR THRESHOLD (V) VOUT = 5V ILOAD = 350mA –6 1.00 FIGURE 13 CIRCUIT –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) 3630 G19 LT1027 • 3630 G20 3630fd 6 For more information www.linear.com/LTC3630 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts