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LTC3728EUH Datasheet(PDF) 6 Page - Linear Technology |
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LTC3728EUH Datasheet(HTML) 6 Page - Linear Technology |
6 / 32 page 6 LTC3728 3728fb TEMPERATURE ( °C) –50 –25 70 74 80 0 50 75 3728 G17 72 78 76 25 100 125 OUTPUT CURRENT (A) 0 0 1 2 3 4 0.5 1.0 1.5 2.0 3728 G18 2.5 3.0 3.5 4.0 RSENSE = 0.015Ω RSENSE = 0.010Ω VOUT = 5V Maximum Current Sense Threshold vs Temperature Dropout Voltage vs Output Current (Figure 14) Soft-Start Up (Figure 13) VOUT 5V/DIV VRUN/SS 5V/DIV IL 2A/DIV VIN = 15V 5ms/DIV 3728 G19 VOUT = 5V Load Step (Figure 13) VOUT 200mV/DIV IL 2A/DIV VIN = 15V 20 µs/DIV 3728 G20 VOUT = 5V VPLLFLTR = 0V LOAD STEP = 0A TO 3A Burst Mode OPERATION Load Step (Figure 13) VOUT 200mV/DIV IL 2A/DIV VIN = 15V 20 µs/DIV 3728 G21 VOUT = 5V VPLLFLTR = 0V LOAD STEP = 0A TO 3A CONTINUOUS MODE RUN/SS Current vs Temperature TEMPERATURE ( °C) –50 –25 0 0.2 0.6 0.8 1.0 75 100 50 1.8 3728 G25 0.4 0 25 125 1.2 1.4 1.6 TYPICAL PERFOR A CE CHARACTERISTICS Load Regulation LOAD CURRENT (A) 0 –0.2 –0.1 4 3728 G13 –0.3 –0.4 1 2 3 5 0.0 FCB = 0V VIN = 15V VITH vs VRUN/SS VRUN/SS (V) 0 0 0.5 1.0 1.5 2.0 2.5 1 23 4 3728 G14 56 VOSENSE = 0.7V SENSE Pins Total Source Current VSENSE COMMON MODE VOLTAGE (V) 0 0 3728 G15 –50 –100 24 50 100 6 |
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