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MAX639 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX639 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 13 page 0 10 MAX640 OUTPUT VOLTAGE RIPPLE vs. INPUT VOLTAGE 25 100 V+ (V) 7 75 150 3456 8 9 11 12 IOUT = 25mA L = 100 µH 125 50 L = 220 µH L = 470 µH 0 10 MAX653 OUTPUT VOLTAGE RIPPLE vs. INPUT VOLTAGE 25 100 V+ (V) 7 75 150 3456 8 9 11 12 ILOAD = 25mA 125 50 L = 220 µH L = 470 µH L = 100 µH 5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters 4 _______________________________________________________________________________________ 100 50 10 µ 100 µ 1 EFFICIENCY vs. OUTPUT CURRENT 60 OUTPUT CURRENT (A) 70 80 90 1m 10m 100m L = 100 µH MAX639, V+ = 6V MAX640, V+ = 4.3V MAX653, V+ = 4V 100 10 MAXIMUM OUTPUT CURRENT vs. INPUT VOLTAGE 200 V+ (V) 7 250 3456 8 9 11 12 150 MAX640 MAX653 MAX639 L = 100 µH 80 10 EFFICIENCY vs. INPUT VOLTAGE 85 95 V+ (V) 7 90 100 3456 8 9 11 12 IOUT = 100mA MAX639 MAX640 MAX653 80 10 EFFICIENCY vs. INPUT VOLTAGE 85 95 V+ (V) 7 90 100 3456 8 9 11 12 L = 470 µH IOUT = 25mA MAX639 MAX640 MAX653 25 10 MAXIMUM OUTPUT CURRENT vs. INPUT VOLTAGE 65 V+ (V) 7 75 3456 8 9 11 12 55 MAX640 MAX653 MAX639 45 35 L = 470µH 0 10 MAX639 OUTPUT VOLTAGE RIPPLE vs. INPUT VOLTAGE 25 100 INPUT VOLTAGE (V) 7 75 150 5 6 8 9 11 12 L = 100 µH 125 50 L = 220 µH L = 470 µH IOUT = 25mA _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 3, internal feedback, L = 100µH, TA = +25°C, unless otherwise noted.) |
Similar Part No. - MAX639_05 |
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Similar Description - MAX639_05 |
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