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LTC4357 Datasheet(PDF) 4 Page - Linear Technology |
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LTC4357 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 14 page ![]() LTC4357 4357fd typical perForMance characteristics OUT Current (IOUT vs VIN) FET Turn-Off Time vs GATE Capacitance FET Turn-Off Time vs Initial Overdrive GATE Current vs Forward Drop (IGATE vs DVSD) DVGATE vs GATE Current ( DVGATE vs IGATE) VSD (mV) –50 –50 –25 0 25 0 50 4357 G04 100 150 VGATE = 2.5V IGATE (µA) 0 0 5 10 15 5 10 15 20 4357 G05 25 VIN > 18V VIN = 12V VIN = 9V VIN (V) 0 75 100 125 6 10 14 4357 G06 50 25 0 2 4 8 12 VOUT = 12V, VIN = VDD VINITIAL (V) 0 200 300 0.8 4357 G08 100 0 0.2 0.4 0.6 1.0 400 VIN = 48V VSD = VINITIAL –1V FET Turn-Off Time vs Final Overdrive VFINAL (V) –1 1000 1500 –0.2 4357 G09 500 0 –0.8 –0.6 –0.4 0 2000 VIN = 48V VSD = 55mV VFINAL FET Load Current vs DVSD CGATE (nF) 0 300 400 500 80 4357 G07 200 100 0 20 40 60 VGATE < VIN + 1V VSD = 55mV –1V ∆VSD (mV) 0 6 8 10 75 4357 G10 4 2 0 25 50 VIN = 48V WITH FET (FDB3632) |
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