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LTC1709-8 Datasheet(PDF) 5 Page - Linear Technology |
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LTC1709-8 Datasheet(HTML) 5 Page - Linear Technology |
5 / 28 page 5 LTC1709-8/LTC1709-9 TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Input Voltage and Mode (Figure 12) EXTVCC Voltage Drop INTVCC and EXTVCC Switch Voltage vs Temperature INPUT VOLTAGE (V) 05 0 400 1000 10 20 25 170989 G04 200 800 600 15 30 35 ON SHUTDOWN CURRENT (mA) 0 150 200 250 40 170989 G05 100 50 0 10 20 30 50 TEMPERATURE ( °C) –50 4.95 5.00 5.05 25 75 170989 G06 4.90 4.85 –25 0 50 100 125 4.80 4.70 4.75 INTVCC VOLTAGE EXTVCC SWITCHOVER THRESHOLD Maximum Current Sense Threshold vs Percent of Nominal Output Voltage (Foldback) Internal 5V LDO Line Regulation Maximum Current Sense Threshold vs Duty Factor INPUT VOLTAGE (V) 0 4.8 4.9 5.1 15 25 170989 G07 4.7 4.6 510 20 30 35 4.5 4.4 5.0 ILOAD = 1mA DUTY FACTOR (%) 0 0 25 50 75 20 40 60 80 170989 G08 100 PERCENT ON NOMINAL OUTPUT VOLTAGE (%) 0 40 50 60 100 170989 G09 30 20 0 25 50 75 10 80 70 Maximum Current Sense Threshold vs VRUN/SS (Soft-Start) Maximum Current Sense Threshold vs Sense Common Mode Voltage Current Sense Threshold vs ITH Voltage VRUN/SS (V) 0 0 20 40 60 80 12 3 4 170989 G10 56 VSENSE(CM) = 1.6V COMMON MODE VOLTAGE (V) 0 72 76 80 4 170989 G11 68 64 60 1 2 3 5 VITH (V) 0 30 50 70 90 2 170989 G12 10 –10 20 40 60 80 0 –20 –30 0.5 1 1.5 2.5 |
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