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LT3991 Datasheet(PDF) 5 Page - Linear Technology |
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LT3991 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 26 page  LTC3630 5 3630fb TYPICAL PERFORMANCE CHARACTERISTICS Feedback Comparator Trip Voltage vs Temperature Feedback Comparator Hysteresis vs Temperature Peak Current Trip Threshold vs Temperature and ISET Peak Current Trip Threshold vs RISET Peak Current Trip Threshold vs Input Voltage Quiescent VIN Supply Current vs Input Voltage Efficiency vs Input Voltage Line Regulation vs Input Voltage Load Regulation vs Load Current INPUT VOLTAGE (V) 10 70 75 80 40 60 3630 G07 65 60 55 20 30 50 85 90 95 ILOAD = 500mA ILOAD = 100mA ILOAD = 10mA ILOAD = 1mA VOUT = 5V FIGURE 13 CIRCUIT INPUT VOLTAGE (V) 5 –0.05 –0.03 –0.01 0.01 15 25 35 45 3630 G08 55 0.03 0.05 –0.04 –0.02 0 0.02 0.04 65 FIGURE 13 CIRCUIT ILOAD = 500mA LOAD CURRENT (mA) 0 4.99 5.00 5.01 300 500 3630 G09 4.98 4.97 4.96 100 200 400 5.02 5.03 5.04 VIN = 12V VOUT = 5V FIGURE 13 CIRCUIT TEMPERATURE (°C) –55 0.796 0.798 0.800 0.802 0.804 –25 5 35 65 3630 G10 95 125 155 VIN = 12V TEMPERATURE (°C) –55 4.5 4.6 4.8 4.9 5.0 5.5 5.2 5 65 95 125 3630 G11 4.7 5.3 5.4 5.1 –25 35 155 VIN = 12V TEMPERATURE (°C) –55 600 1000 155 3630 G12 400 0 5 65 –25 35 95 125 VIN = 12V 800 200 1200 1400 ISET OPEN ISET = GND RISET = 100kΩ RISET (kΩ) 0 1000 1200 1400 200 3630 G13 800 600 50 100 150 250 400 200 0 VIN = 12V INPUT VOLTAGE (V) 0 800 1000 1400 30 50 3630 G14 600 400 10 20 40 60 200 0 1200 ISET = OPEN ISET = 100k ISET = 0V VIN VOLTAGE (V) 5 6 8 10 3630 G15 4 2 0 25 45 15 35 55 12 14 16 65 SLEEP SHUTDOWN |
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