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LTC3542 Datasheet(PDF) 5 Page - Linear Integrated Systems |
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LTC3542 Datasheet(HTML) 5 Page - Linear Integrated Systems |
5 / 16 page LTC3542 5 3542fa RDS(ON) vs Temperature Switch Leakage vs Input Voltage Efficiency vs Input Voltage TEMPERATURE ( °C) –50 0 0.1 0.3 0.4 0.5 50 0.9 3542 G13 0.2 0 –25 75 100 25 125 0.6 0.7 0.8 VIN = 2.7V VIN = 3.6V VIN = 4.2V SYNCHRONOUS SWITCH MAIN SWITCH Switch Leakage vs Temperature TEMPERATURE ( °C) –50 200 250 300 25 75 3542 G15 150 100 –25 0 50 100 125 50 0 MAIN SWITCH SYNCHRONOUS SWITCH VIN (V) 0 0 200 400 600 1 2 34 3542 G14 5 800 1000 100 300 500 700 900 6 SYNCHRONOUS SWITCH MAIN SWITCH INPUT VOLTAGE (V) 2.5 100 90 80 70 60 50 40 30 45 3542 G16 3 3.5 4.5 5.5 IOUT = 500mA IOUT = 100mA IOUT = 10mA IOUT = 1mA IOUT = 0.1mA VOUT = 1.8V Burst Mode OPERATION FIGURE 3a CIRCUIT Efficiency vs Load Current OUTPUT CURRENT (mA) 30 90 100 20 10 80 50 70 60 40 0.1 10 100 1000 3542 G17 0 1 VIN = 2.7V VIN = 3.6V VIN = 4.2V VOUT = 1.8V Burst Mode OPERATION FIGURE 3a CIRCUIT Efficiency vs Load Current Efficiency vs Load Current OUTPUT CURRENT (mA) 30 90 100 20 10 80 50 70 60 40 0.1 10 100 1000 3542 G18 0 1 VIN = 2.7V VIN = 3.6V VIN = 4.2V VOUT = 1.2V Burst Mode OPERATION FIGURE 3a CIRCUIT OUTPUT CURRENT (mA) 30 90 100 20 10 80 50 70 60 40 0.1 10 100 1000 3542 G19 0 1 Burst Mode OPERATION VIN = 3.6V VOUT = 1.8V FIGURE 3a CIRCUIT PULSE SKIP MODE TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C unless otherwise specified. |
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