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LTC3542EDC Datasheet(PDF) 4 Page - Linear Integrated Systems |
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LTC3542EDC Datasheet(HTML) 4 Page - Linear Integrated Systems |
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4 / 16 page  LTC3542 4 3542fa Start-Up from Shutdown Load Step Reference Voltage vs Temperature Oscillator Frequency vs Temperature Oscillator Frequency vs Supply Voltage Output Voltage vs Supply Voltage Output Voltage vs Load Current RDS(ON) vs Input Voltage RUN 2V/DIV IL 500mA/DIV VIN = 3.6V VOUT = 1.8V ILOAD = 500mA FIGURE 3a CIRCUIT 400 μs/DIV 3542 G04 VOUT 1V/DIV VOUT 100mV/DIV AC COUPLED IL 500mA/DIV VIN = 3.6V VOUT = 1.8V ILOAD = 30mA TO 500mA FIGURE 3a CIRCUIT 20 μs/DIV 3542 G05 ILOAD 500mA/DIV Load Step VOUT 100mV/DIV AC COUPLED IL 500mA/DIV VIN = 3.6V VOUT = 1.8V ILOAD = 0mA TO 500mA FIGURE 3a CIRCUIT 20 μs/DIV 3542 G06 ILOAD 500mA/DIV TEMPERATURE ( °C) –50 0.6100 0.6075 0.6050 0.6025 0.6000 0.5975 0.5950 0.5925 0.5900 0.5875 0.5850 0.5825 0.6125 0.6150 0 50 75 3542 G07 –25 25 100 125 INPUT VOLTAGE (V) 2 –0.5 –0.4 –0.2 –0.1 0 0.5 0.2 3 4 4.5 3542 G10 –0.3 0.3 0.4 0.1 2.5 3.5 5 5.5 6 VOUT = 1.8V IOUT = 100mA LOAD CURRENT (mA) 1 0 1.0 2.0 10 100 1000 3542 G11 –1.0 –0.5 0.5 1.5 –1.5 –2.0 Burst Mode OPERATION VIN = 3.6V VOUT = 1.8V PULSE SKIP MODE VIN (V) 1 0 0.1 0.3 0.4 0.5 5 0.9 3542 G12 0.2 3 26 47 0.6 0.7 0.8 SYNCHRONOUS SWITCH MAIN SWITCH TEMPERATURE ( °C) –50 –30 –10 10 30 50 70 90 110 1.8 1.9 2.1 2.2 2.3 2.7 3542 G08 2.0 2.4 2.5 2.6 SUPPLY VOLTAGE (V) 2.2 2.3 2.4 56 3542 G09 2.1 2.0 1.8 2 3 4 1.9 2.7 2.5 2.6 TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C unless otherwise specified. |
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