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LTC3727LXEUH-1 Datasheet(PDF) 5 Page - Linear Technology |
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LTC3727LXEUH-1 Datasheet(HTML) 5 Page - Linear Technology |
5 / 28 page 5 LTC3727LX-1 3727lx1fa Maximum Current Sense Threshold vs Duty Factor Maximum Current Sense Threshold vs Percent of Nominal Output Voltage (Foldback) Maximum Current Sense Threshold vs VRUN/SS (Soft-Start) Current Sense Threshold vs ITH Voltage Load Regulation VITH vs VRUN/SS TYPICAL PERFOR A CE CHARACTERISTICS DUTY FACTOR (%) 0 0 25 50 75 100 125 150 20 40 60 80 3727LX1 G07 100 PERCENT OF NOMINAL OUTPUT VOLTAGE (%) 0 90 120 150 80 3727LX1 G08 60 30 75 105 135 45 15 0 20 40 60 100 VRUN/SS (V) 0 50 75 100 125 150 12 3 4 3727LX1 G09 56 VSENSE(CM) = 1.6V VITH (V) 0 25 50 75 1.5 2.5 3727LX1 G10 0 –25 –50 0.5 1.0 2.0 100 125 150 LOAD CURRENT (A) 0 –0.2 –0.1 4 3727LX1 G11 –0.3 –0.4 1 2 3 5 0.0 FCB = 0V VIN = 15V FIGURE 1 VRUN/SS (V) 0 0 0.5 1.0 1.5 2.0 2.5 1 23 4 3727LX1 G12 56 VOSENSE = 0.7V Supply Current vs Input Voltage and Mode (Figure 13) EXTVCC Voltage Drop INPUT VOLTAGE (V) 0 0 400 1000 10 20 3727LX1 G04 200 800 600 30 32 BOTH CONTROLLERS ON SHUTDOWN CURRENT (mA) 0 60 80 100 30 50 3727LX1 G05 40 20 0 10 20 40 120 140 160 VEXTVCC = 8.5V Internal 7.5V LDO Line Regulation INPUT VOLTAGE (V) 0 6.8 6.9 7.1 7.2 7.3 20 7.7 3727LX1 G06 7.0 10 5 25 30 15 32 7.4 7.5 7.6 ILOAD = 1mA |
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