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MAX1953 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1953 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 22 page Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) Low-Cost, High-Frequency, Current-Mode PWM Buck Controller 4 _______________________________________________________________________________________ MAX1954 EFFICIENCY vs. LOAD CURRENT LOAD CURRENT (A) 1 50 60 70 80 90 100 40 0.1 10 VOUT = 2.5V VOUT = 1.7V VIN = 5V CIRCUIT OF FIGURE 2 MAX1953 OUTPUT VOLTAGE vs. LOAD CURRENT LOAD CURRENT (A) 2.5 2.0 1.5 1.0 0.5 2.45 2.50 2.55 2.60 2.40 0 3.0 VIN = 5V VIN = 3.3V CIRCUIT OF FIGURE 1 MAX1954 OUTPUT VOLTAGE vs. LOAD CURRENT LOAD CURRENT (A) 5 4 3 2 1 2.40 2.45 2.50 2.55 2.60 2.35 06 VHSD = VIN = 5V CIRCUIT OF FIGURE 2 MAX1953 EFFICIENCY vs. LOAD CURRENT LOAD CURRENT (A) 1 55 60 65 70 75 80 85 90 95 100 50 0.1 10 VIN = 3.3V VIN = 5V VOUT = 2.5V CIRCUIT OF FIGURE 1 MAX1957 EFFICIENCY vs. LOAD CURRENT LOAD CURRENT (A) 1 50 60 70 80 90 100 40 0.1 10 VOUT = 1.25V VIN = 5V CIRCUIT OF FIGURE 3 MAX1954 EFFICIENCY vs. LOAD CURRENT LOAD CURRENT (A) 20 15 10 5 55 60 65 70 75 80 85 90 95 100 50 025 VOUT = 1.8V VIN = 12V CIRCUIT OF FIGURE 4 MAX1954 OUTPUT VOLTAGE vs. LOAD CURRENT LOAD CURRENT (A) 5 4 3 2 1 1.60 1.65 1.70 1.75 1.80 1.55 06 VHSD = VIN = 5V CIRCUIT OF FIGURE 2 |
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