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ISL97650 Datasheet(PDF) 6 Page - Renesas Technology Corp |
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ISL97650 Datasheet(HTML) 6 Page - Renesas Technology Corp |
6 / 20 page ISL97650 FN9198 Rev.4.00 Page 6 of 20 April 17, 2009 FIGURE 3. BUCK EFFICIENCY FIGURE 4. BUCK LOAD REGULATION FIGURE 5. VOFF LOAD REGULATION vs IOFF FIGURE 6. VON LOAD REGULATION vs ION FIGURE 7. BOOST DISCONTINUOUS MODE FIGURE 8. THRESHOLD OF BOOST FROM DC TO CC MODE Typical Performance Curves (Continued) VIN = 12V VIN = 5V 0 0 500 1000 1500 2000 IO (mA) 20 40 60 80 100 VIN = 12V VIN = 5V 0 500 1000 1500 2000 IO (mA) -2.0 -1.5 -1.0 -0.5 0 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0 10 20 3040 5060 7080 IOFF (mA) VOFF = -8V -0.35 -0.30 -0.20 -0.15 -0.10 -0.05 0 0 1020 3040 5060 ION (mA) VON = 25V -0.25 200ns/DIV Ch1 = LX(boost)(5V/DIV) Ch2 = Io(Boost)(10mA/DIV) 200ns/DIV Ch1 = LX(boost)(5V/DIV) Ch 2 = Io(Boost)(10mA/DIV) |
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