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LTC3412AIUF-PBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC3412AIUF-PBF Datasheet(HTML) 4 Page - Linear Technology |
4 / 20 page LTC3412A 4 3412afc INPUT VOLTAGE (V) 2.5 94 92 90 88 86 84 82 80 4.0 3412A GO4 3.0 3.5 4.5 5.0 3412A GO5 3412A GO8 3412A GO7 3412A GO9 LOAD CURRENT (A) 0 0 –0.1 –0.2 –0.3 –0.4 –0.5 –0.6 0.5 1.0 1.5 2.0 3412A GO6 2.5 3.0 0.1A 1A 3A 5μs/DIV 5μs/DIV 40μs/DIV VOUT 20mV/DIV INDUCTOR CURRENT 1A/DIV VOUT 100mV/DIV INDUCTOR CURRENT 2A/DIV FORCED CONTINUOUS 20mV/DIV PULSE SKIPPING 20mV/DIV BURST MODE 20mV/DIV VIN = 3.3V VOUT = 2.5V F = 1MHz LOAD STEP = 50mA TO 2A FIGURE 4 CIRCUIT VIN = 3.3V VOUT = 2.5V FIGURE 4 CIRCUIT FIGURE 4 CIRCUIT 96 95 94 93 92 91 90 89 88 87 FREQUENCY (MHz) 0 4.0 1.0 2.0 3.0 0.5 1.5 2.5 3.5 0.22μH 0.47μH 1μH FIGURE 4 CIRCUIT VIN = 3.3V FIGURE 4 CIRCUIT FIGURE 4 CIRCUIT VIN = 3.3V TYPICAL PERFOR A CE CHARACTERISTICS Burst Mode Operation Load Step Transient Burst Mode Operation Efficiency vs Input Voltage Efficiency vs Frequency Load Regulation Output Voltage Ripple Efficiency vs Load Current Efficiency vs Load Current, Burst Mode Operation Efficiency vs Load Current, Forced Continuous Operation LOAD CURRENT (A) 0.01 100 90 80 70 60 50 40 30 20 10 0 100 95 90 85 80 75 70 65 60 55 50 0.1 1 10 LOAD CURRENT (A) 0.01 0.1 1 10 LOAD CURRENT (A) 0.01 0.1 1 10 3412A GO1 100 90 80 70 60 50 40 30 20 10 0 3412A GO2 3412A GO3 Burst Mode OPERATION FORCED CONTINUOUS VIN = 3.3V VIN = 3.3V VOUT = 2.5V FIGURE 4 CIRCUIT VOUT = 2.5V FIGURE 4 CIRCUIT VOUT = 2.5V FIGURE 4 CIRCUIT VIN = 5V VIN = 3.3V VIN = 5V |
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