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ISL8272MEVAL2Z датащи(PDF) 13 Page - Renesas Technology Corp |
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ISL8272MEVAL2Z датащи(HTML) 13 Page - Renesas Technology Corp |
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13 / 59 page ![]() ISL8272M FN8670 Rev.5.00 Page 13 of 59 Nov 8, 2017 Typical Performance Curves Efficiency Performance Operating condition: TA = +25°C, no air flow. COUT = 1340µF. Typical values are used unless otherwise noted. FIGURE 6. EFFICIENCY vs OUTPUT CURRENT AT VIN = 5V, fSW = 300kHz FOR VARIOUS OUTPUT VOLTAGES FIGURE 7. EFFICIENCY VS SWITCHING FREQUENCY AT VIN = 5V, IOUT = 50A FOR VARIOUS OUTPUT VOLTAGES FIGURE 8. EFFICIENCY vs OUTPUT CURRENT AT VIN = 9V, fSW = 300kHz FOR VARIOUS OUTPUT VOLTAGES FIGURE 9. EFFICIENCY vs SWITCHING FREQUENCY AT VIN = 9V, IOUT = 50A FOR VARIOUS OUTPUT VOLTAGES FIGURE 10. EFFICIENCY vs OUTPUT CURRENT AT VIN = 12V, fSW = 300kHz FOR VARIOUS OUTPUT VOLTAGES FIGURE 11. EFFICIENCY vs SWITCHING FREQUENCY AT VIN = 12V, IOUT = 50A FOR VARIOUS OUTPUT VOLTAGES 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 0 5 10 15 20 25 30 35 40 45 50 0.8V 1V 1.2V 1.8V 2.5V 3.3V IOUT (A) 0.85 0.87 0.89 0.91 0.93 0.95 0.97 300 350 400 450 500 550 600 650 700 750 800 850 900 Switching Frequency (kHz) 1V 1.2V 1.8V 2.5V 3.3V 0.8V 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 0 5 10 15 20 25 30 35 40 45 50 0.8V 1V 1.2V 1.8V 2.5V 3.3V IOUT (A) 5V 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.98 300 350 400 450 500 550 600 650 700 750 800 850 900 SWITCHING FREQUENCY (kHz) 1V 1.2V 1.8V 2.5V 3.3V 0.8V 5V 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 0 5 10 15 20 25 30 35 40 45 50 0.8V 1V 1.2V 1.8V 2.5V 3.3V IOUT (A) 5V 0.82 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.98 300 350 400 450 500 550 600 650 700 750 800 850 900 SWITCHING FREQUENCY (kHz) 1V 1.2V 1.8V 2.5V 3.3V 0.8V 5V |
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