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LTC3404 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3404 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 16 page  4 LTC3404 3404fb OUTPUT CURRENT (mA) 70 80 90 65 75 85 0.1 10 100 1000 3404 G04 60 1 VIN = 3V VIN = 6V VOUT = 1.8V L = 4.7 μH VIN = 4.2V VIN = 3.6V TYPICAL PERFOR A CE CHARACTERISTICS Oscillator Frequency vs Temperature Efficiency vs Output Current TEMPERATURE ( °C) –50 0.814 0.809 0.804 0.799 0.794 0.789 0.784 25 75 3404 G05 –25 0 50 100 125 VIN = 3.6V Oscillator Frequency vs Supply Voltage Reference Voltage vs Temperature Output Voltage vs Load Current OUTPUT CURRENT (mA) 80 75 85 90 95 100 0.1 10 100 1000 3404 G4a 70 65 1 VIN = 6V VIN = 3.6V VOUT = 3.1V L = 4.7 μH VIN = 4.2V Efficiency vs Output Current TEMPERATURE ( °C) –50 1.55 1.50 1.45 1.40 1.35 1.30 1.25 100 75 3404 G06 –25 0 50 25 125 VIN = 3.6V SUPPLY VOLTAGE (V) 1.25 1.35 1.30 8 3404 G07 2 4 6 1.55 1.50 1.45 1.40 LOAD CURRENT (mA) 0 1.75 1.76 1.77 1.78 1.80 1.81 1.82 200 400 3404 G08 1.79 600 800 1.83 PULSE SKIPPING MODE VIN = 3.6V L = 4.7 μF Efficiency vs Input Voltage Efficiency vs Output Current Efficiency vs Output Current INPUT VOLTAGE (V) 2 75 80 5 7 3404 G01 70 60 85 65 34 6 90 95 8 Burst Mode OPERATION VOUT = 2.5V L = 4.7 μH IOUT = 100mA IOUT = 10mA IOUT = 1mA IOUT = 300mA IOUT = 0.1mA OUTPUT CURRENT (mA) 30 90 100 20 10 80 50 70 60 40 0.1 10 100 1000 3404 G02 0 1 VIN = 3.6V VIN = 3.6V VIN = 4.2V VIN = 4.2V PULSE SKIPPING MODE Burst Mode OPERATION VOUT = 1.8V L = 4.7 μH OUTPUT CURRENT (mA) 55 65 70 80 90 0.1 10 100 1000 3404 G03 1 75 60 50 85 L = 4.7 μH L = 3.5 μH Burst Mode OPERATION VIN = 6V VOUT = 2.5V |
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