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MAX747CSD Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX747CSD Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 12 page High-Efficiency PWM, Step-Down P-Channel DC-DC Controller _______________________________________________________________________________________ 3 0 -75 SUPPLY CURRENT vs. TEMPERATURE 1 TEMPERATURE (°C) 3 2 4 -50 -25 0 25 50 75 100 125 VIN = 9V VOUT = 5V SCHOTTKY DIODE LEAKAGE EXCLUDED ENTIRE CIRCUIT 0.6 5 SUPPLY CURRENT vs. SUPPLY VOLTAGE 0.7 SUPPLY VOLTAGE (V) 13 0.9 0.8 711 15 1.0 9 2 0.4 CONTINUOUS-CONDUCTION MODE BOUNDARY AND CORRESPONDING PEAK INDUCTOR CURRENT (VOUT = 3.3V) 6 OUTPUT CURRENT (A) 1.2 14 10 0.6 1.0 1.4 18 0.8 CONTINUOUS CONDUCTION REGION VOUT = 3.3V L = 33µH RSENSE = 50mΩ DISCONTINUOUS CONDUCTION REGION PEAK INDUCTOR CURRENT 0.4 0.8 1.6 1.2 2.0 5 0.5 CONTINUOUS-CONDUCTION MODE BOUNDARY AND CORRESPONDING PEAK INDUCTOR CURRENT (VOUT = 5V) 9 OUTPUT CURRENT (A) 13 11 0.7 1.3 15 1.1 0.9 CONTINUOUS CONDUCTION REGION PEAK INDUCTOR CURRENT VOUT = 5V L = 50µH RSENSE = 50mΩ DISCONTINUOUS CONDUCTION REGION 7 0.4 0.8 1.6 1.2 2.0 100 70 0.01 0.1 10 EFFICIENCY vs. OUTPUT CURRENT (VOUT = 5V) 80 90 OUTPUT CURRENT (A) 1 VIN = 12V VIN = 9V VIN = 6V 3 0 0.01 0.1 10 PEAK INDUCTOR CURRENT vs. OUTPUT CURRENT (VOUT = 5V) 1 2 OUTPUT CURRENT (A) 1 VIN = 12V VIN = 9V VIN = 6V 3 0 0.01 0.1 10 PEAK INDUCTOR CURRENT vs. OUTPUT CURRENT (VOUT = 3.3V) 1 2 OUTPUT CURRENT (A) 1 VIN = 9V VIN = 6V VIN = 5V 100 70 0.01 0.1 10 EFFICIENCY vs. OUTPUT CURRENT (VOUT = 3.3V) 80 90 OUTPUT CURRENT (A) 1 VIN = 6V VIN = 9V VIN = 12V __________________________________________Typical Operating Characteristics (Circuit of Figure 1, V+ = 9V, TA = +25°C, unless otherwise noted.) |
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