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ISL8272MAIRZ Datasheet(PDF) 9 Page - Intersil Corporation |
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ISL8272MAIRZ Datasheet(HTML) 9 Page - Intersil Corporation |
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9 / 55 page  ISL8272M 9 FN8670.2 January 14, 2015 Submit Document Feedback TABLE 1. ISL8272M DESIGN GUIDE MATRIX AND OUTPUT VOLTAGE RESPONSE VIN (V) VOUT (V) CIN (BULK) (Note 9) (µF) CIN (CERAMIC) (µF) COUT (BULK) (µF) COUT (CERAMIC) (µF) ASCR GAIN (Note 10) ASCR RESIDUAL (Note 10) P-P DEVIATION (mV) RECOVERY TIME (µs) LOAD STEP (A) (Note 11) FREQ. (kHz) 5 1 1x470 6x47 4x470 12x100 220 90 50 20 0/25 300 5 1 1x470 4x47 4x470 8x100 550 100 45 15 0/25 533 12 1 1x470 6x22 4x470 12x100 220 90 55 22 0/25 300 12 1 1x470 4x22 4x470 8x100 550 100 50 15 0/25 533 5 1.8 1x470 6x47 4x470 8x100 200 90 60 25 0/25 300 5 1.8 1x470 4x47 2x470 6x100 250 90 70 20 0/25 533 12 1.8 1x470 6x22 4x470 8x100 220 90 70 20 0/25 300 12 1.8 1x470 4x22 2x470 6x100 280 100 70 20 0/25 533 5 2.5 1x470 6x47 2x470 6x100 120 90 100 30 0/25 300 5 2.5 1x470 4x47 2x470 4x100 250 90 80 20 0/25 533 12 2.5 1x470 6x22 2x470 6x100 110 90 100 20 0/25 300 12 2.5 1x470 4x22 2x470 4x100 220 90 100 15 0/25 533 5 3.3 1x470 6x47 2x470 4x100 100 90 120 50 0/25 300 5 3.3 1x470 4x47 2x470 4x100 220 90 100 30 0/25 533 12 3.3 1x470 4x22 2x470 4x100 220 90 100 10 0/25 533 12 5 1x470 6x22 2x470 4x100 230 90 120 10 0/25 533 NOTES: 9. CIN bulk capacitor is optional only for energy buffer from the long input power supply cable. 10. ASCR gain and residual are selected to ensure phase margin higher than 60° and gain margin higher than 6dB at room temperature and full load (50A). 11. Output voltage response is tested with load step slew rate higher than 100A/µs. TABLE 2. RECOMMENDED INPUT/OUTPUT CAPACITOR VENDORS VALUE PART NUMBER MURATA, Input Ceramic 47µF, 16V, 1210 GRM32ER61C476ME15L MURATA, Input Ceramic 22µF, 16V, 1210 GRM32ER61E226KE15L TAIYO YUDEN, Input Ceramic 47µF, 16V, 1210 EMK325BJ476MM-T TAIYO YUDEN, Input Ceramic 22µF, 25V, 1210 TMK325BJ226MM-T MURATA, Output Ceramic 100µF, 6.3V, 1210 GRM32ER60J107M TDK, Output Ceramic 100µF, 6.3V, 1210 C3225X5R0J107M AVX, Output Ceramic 100µF, 6.3V, 1210 12106D107MAT2A SANYO POSCAP, Output Bulk 470µF, 4V 4TPE470MCL SANYO POSCAP, Output Bulk 470µF, 6.3V 6TPF470MAH |
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