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MAX1992ETG Datasheet(PDF) 8 Page - Maxim Integrated Products |
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MAX1992ETG Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 36 page Quick-PWM Step-Down Controllers with Inductor Saturation Protection and Dynamic Output Voltages 8 _______________________________________________________________________________________ Typical Operating Characteristics (continued) (MAX1992 Circuit of Figure 1, MAX1993 Circuit of Figure 9, VIN = 12V, VDD = VCC = 5V, SKIP = VCC, TON = open, TA = +25°C, unless otherwise noted.) 1.8V OUTPUT VOLTAGE vs. LOAD CURRENT LOAD CURRENT (A) 4 3 2 1 1.81 1.82 1.83 1.84 1.85 1.80 05 SKIP = GND SKIP = VCC VIN = 7V VIN = 20V SWITCHING FREQUENCY vs. LOAD CURRENT LOAD CURRENT (A) 4 3 1 2 50 100 150 200 250 300 350 400 0 05 SKIP = GND SKIP = VCC SWITCHING FREQUENCY vs. INPUT VOLTAGE INPUT VOLTAGE (V) 24 20 16 12 8 4 240 280 320 360 400 200 028 NO LOAD 4A LOAD SWITCHING FREQUENCY vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 240 280 320 360 400 200 -40 85 4A LOAD NO LOAD MAXIMUM OUTPUT CURRENT vs. INPUT VOLTAGE INPUT VOLTAGE (V) 24 20 16 12 8 4 4.3 4.6 4.9 5.2 5.5 4.0 028 MAXIMUM OUTPUT CURRENT vs. TEMPERATURE TEMPERATURE ( °C) 60 35 -15 10 4.9 5.0 5.1 5.2 4.8 -40 85 NO-LOAD SUPPLY CURRENT vs. INPUT VOLTAGE (FORCED-PWM MODE) INPUT VOLTAGE (V) 24 20 12 16 8 4 1 2 3 4 5 6 7 8 9 10 0 028 IBIAS IIN SKIP = VCC NO-LOAD SUPPLY CURRENT vs. INPUT VOLTAGE (SKIP MODE) INPUT VOLTAGE (V) 24 20 16 12 8 4 0.3 0.6 0.9 1.2 1.5 0 028 IIN IBIAS SKIP = AGND REFERENCE LOAD REGULATION IREF ( μA) 80 60 40 20 0 1.994 1.998 2.002 2.006 2.010 1.990 -20 100 |
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