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LTC3407EDD-3 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3407EDD-3 Datasheet(HTML) 4 Page - Linear Technology |
4 / 16 page LTC3407-3 4 34073fa Efficiency vs VIN Efficiency vs Load Current Load Regulation Line Regulation TYPICAL PERFOR A CE CHARACTERISTICS Reference Voltage vs Temperature RDS(ON) vs Input Voltage RDS(ON) vs Temperature 0.615 0.610 0.605 0.600 0.595 0.590 0.585 TEMPERATURE ( °C) –50 25 75 34073 G07 –25 0 50 100 125 VIN = 3.6V VIN (V) 1 500 450 400 350 300 250 200 46 34073 G08 2 3 57 MAIN SWITCH SYNCHRONOUS SWITCH TEMPERATURE ( °C) –50 550 500 450 400 350 300 250 200 150 100 25 75 34073 G09 –25 0 50 100 150 125 MAIN SWITCH SYNCHRONOUS SWITCH VIN = 4.2V VIN = 3.6V INPUT VOLTAGE (V) 2 34073 G10 3 45 6 100 95 90 85 80 75 70 65 60 55 50 VOUT = 1.8V Burst Mode OPERATION CH2 OFF 800mA 10mA 100mA 1mA LOAD CURRENT (mA) 1 80 90 100 10 100 1000 34073 G14 70 75 85 95 65 60 VIN = 5V, VOUT = 3.3V NO LOAD ON OTHER CHANNEL Burst Mode OPERATION PULSE SKIP MODE Efficiency vs Load Current LOAD CURRENT (mA) 1 100 90 80 70 60 10 100 1000 34073 G11 VIN = 3.6V, VOUT = 1.8V NO LOAD ON OTHER CHANNEL Burst Mode OPERATION PULSE SKIP MODE LOAD CURRENT (mA) 1 4 3 2 1 0 –1 –2 –3 –4 10 100 1000 34073 G12 VIN = 3.6V, VOUT = 1.8V NO LOAD ON OTHER CHANNEL Burst Mode OPERATION PULSE SKIP MODE Load Regulation LOAD CURRENT (mA) 1 0 2 4 10 100 1000 34073 G13 –2 –1 1 3 –3 –4 VIN = 5V, VOUT = 3.3V NO LOAD ON OTHER CHANNEL Burst Mode OPERATION PULSE SKIP MODE VIN (V) 2 –0.20 0 0.20 0.40 6 34073 G15 –0.40 –0.60 –1.00 –0.80 3 4 5 0.80 0.60 VOUT = 1.8V IOUT = 200mA TA = 25°C unless other wise specified. |
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