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LT3500IMSE-TRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LT3500IMSE-TRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 28 page  LT3500 3 3500fb The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. VVIN = 15V, VRT/SYNC = 2V, unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS SHDN Threshold l 710 760 780 mV SHDN Source Current VSHDN = 0.62V 1.5 2.5 3.5 μA SHDN Current Hysterisis 1.25 2 3.25 μA Minimum Input Voltage (Note 3) VFB = 0V l 2.4 2.8 V Supply Shutdown Current VSHDN = 0V l 12 30 μA Supply Quiescent Current VFB = 0.9V 2.5 3.5 mA FB Voltage VVC = 1V VVC = 0.8V to 1.6V, VIN = 3V to 40V l l 0.784 0.776 0.8 0.8 0.816 0.824 V V FB Bias Current VFB = 0.8V, VVC = 1V 50 150 nA Error Amplifier gm VVC = 1V, IVC = ±10μA 150 250 350 μmho Error Amplifier Source Current VFB = 0.6V, VVC = 1V 12 16 20 μA Error Amplifier Sink Current VFB = 1V, VVC = 1V 14 18 22 μA Error Amplifier High Clamp VFB = 0.6V 1.8 2.0 2.2 V Error Amplifier Switching Threshold VFB = 0.6V 0.6 0.8 1.0 V SS Source Current VSS = 0.4V, VFB = 0.9V 2.25 2.75 3.75 μA SS Sink Current VFB = 0V, VSS = 2V 300 600 900 μA SS POR Sink Current (Note 4) VFB = 0V, VSS = 2V, Cycle SHDN 400 600 800 μA SS POR Threshold 50 100 150 mV SS to FB Offset (VSS – VFB)VVC = VFS, VSS = 0.4V 70 100 120 mV PG/PG Leakage VFB = 0.9V, VPG/VPG = 40V 0.1 1 μA PG/PG Threshold (Rising) VPG = 0.4V 0.685 0.708 0.730 V PG/PG Hysteresis (Falling) VPG = 0.4V 20 30 40 mV PG Sink Current VPG = 0.4V, VFB = 0.7V 250 500 750 μA PG Sink Current VPG = 0.4V, VFB = 0.9V 500 800 1100 μA RT/SYNC Reference Voltage VFB = 0.9V, RRT/SYNC = 15k 0.75 0.850 0.975 V Switching Frequency RRT/SYNC = 90.9k RRT/SYNC = 90.9k RRT/SYNC = 15k l 450 425 2 500 500 2.4 550 625 2.8 kHz kHz MHz SYNC Frequency Range l 250 2500 kHz Minimum Switch On Time VFB = 0.7V, RRT/SYNC = 90.9k 140 ns Minimum Switch Off Time VFB = 0.7V, RRT/SYNC = 90.9k 120 ns Switch Leakage Current VSW = 0V 1 10 μA Switch Saturation Voltage ISW = 2A, VBST = 18V, VFB = 0.7V 450 mV Switch Peak Current DD Package VBST = 18V, VFB = 0.7V l 2.3 2.1 2.8 2.8 3.5 3.5 A A Switch Peak Current MSE Package VBST = 18V, VFB = 0.7V l 2.3 2.1 2.9 2.9 3.5 3.7 A A Boost Current ISW = 2A, VBST = 20V, VFB = 0.7V 20 30 45 mA Minimum Boost Voltage (Note 5) ISW = 2A, VFB = 0.7V 2.2 3 V ELECTRICAL CHARACTERISTICS |
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