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MAX744ACWE Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX744ACWE Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 16 page 100 90 80 60 0 200 600 800 1000 OUTPUT CURRENT (mA) MAX730A EFFICIENCY vs. OUTPUT CURRENT 70 400 V+ = 5.5V V+ = 7V V+ = 9V V+ = 11V (NOTES 3, 6) 100 90 80 60 0 200 600 800 1000 OUTPUT CURRENT (mA) MAX738A EFFICIENCY vs. OUTPUT CURRENT 70 400 V+ = 6V V+ = 8V V+ = 12V V+ = 16V (NOTES 3, 6) 2.5 2.0 1.5 0 02 68 10 MAX738A/MAX744A QUIESCENT SUPPLY CURRENT vs. SUPPLY VOLTAGE 0.5 4 1.0 12 14 16 UNDERVOLTAGE LOCKOUT HYSTERESIS UNDERVOLTAGE LOCKOUT ENABLED 1000 800 600 0 0 100 300 400 500 MAX738A/MAX744A PEAK INDUCTOR CURRENT vs. OUTPUT CURRENT 200 200 400 600 700 800 L1 = 100 µH C4 = 150 µF V+ = 6.6V V+ = 8.0V TO 16.0V 5V, Step-Down, Current-Mode PWM DC-DC Converters 4 _______________________________________________________________________________________ __________________________________________Typical Operating Characteristics (Circuit of Figure 3, TA = +25°C, unless otherwise noted.) 100 90 80 60 0 200 600 800 1000 OUTPUT CURRENT (mA) MAX744A EFFICIENCY vs. OUTPUT CURRENT 70 400 V+ = 6.0V V+ = 9.0V V+ = 12.0V V+ = 16.0V (NOTE 3) -60 0 60 80 100 STANDBY SUPPLY CURRENT vs. TEMPERATURE 16 10 6 2 18 14 12 8 4 0 -40 -20 20 40 120 140 160 V+ = 16V MAX738A/MAX744A ONLY V+ = 9V V+ = 6V (NOTES 4, 5) 20 V+ = 12V MAX738A/MAX744A ONLY 3.0 2.5 1.5 1.0 0.5 -60 20 40 80 120 TEMPERATURE (°C) QUIESCENT SUPPLY CURRENT vs. TEMPERATURE 2.0 0 -40 -20 0 60 100 140 160 MAX730A, V+ = 9.0V MAX738A, V+ = 12.0V MAX744A, V+ = 12.0V (NOTES 4, 5) 1400 1000 4 8 10 12 14 SUPPLY VOLTAGE (V) MAXIMUM OUTPUT CURRENT vs. SUPPLY VOLTAGE 1200 800 616 MAX738A MAX730A MAX744A (NOTES 3, 6) 1400 1000 800 4 8 10 12 14 SUPPLY VOLTAGE (V) MAXIMUM OUTPUT CURRENT vs. SUPPLY VOLTAGE, NO R1 1200 616 600 400 200 (NOTES 3, 6) MAX738A MAX730A MAX744A |
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