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PCMB065T-2R2MS Datasheet(PDF) 38 Page - International Rectifier |
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PCMB065T-2R2MS Datasheet(HTML) 38 Page - International Rectifier |
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38 / 47 page  Dual output, 4A/Phase, Highly Integrated SupIRBuck TM Single-Input Voltage, Synchronous Buck Regulator IR3891 38 www.irf.com © 2013 International Rectifier May 08, 2013 TYPICAL OPERATING WAVEFORMS Vin=PVin=12V, Vo1=1.8V, Iout1=0-4A, Vo2=1.2V, Iout1=0-4A, Fs=600kHz, Room Temperature, No air flow Figure 32: Startup with full load CH1:Vout1, Ch2:Vout2, Ch3:Vin, CH4:Vcc Figure 33: PGood signals at Startup with full load CH1:Vout1, Ch2:Vout2, Ch3:PGood1, CH4:PGood2 Figure 34: Channel 1 Startup with Pre-Bias, 1.52V CH1:Enable1, Ch2:Vout1, Ch4:PGood1 Figure 35: Channel 2 Startup with Pre-Bias, 1.05V CH1:Enable2, Ch2:Vout2, Ch4:PGood2 Figure 36: Inductor Switch Nodes at full load CH1:SW1, Ch2:SW2 Figure 37: Output Voltage Ripples at full load CH1:Vout1, Ch2:Vout2 |
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