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IR3621 Datasheet(PDF) 22 Page - International Rectifier

Part # IR3621
Description  2-PHASE / DUAL SYNCHRONOUS PWM CONTROLLER WITH OSCILLATOR SYNCHRONIZATION AND PRE-BIAS STARTUP
PDF  29 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3621 Datasheet(HTML) 22 Page - International Rectifier

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IR3621&(PbF)
www.irf.com
TYPICAL OPERATING WAVEFORMS
Test Conditions:
VIN=12V, VOUT1=2.5V, IOUT1=0-10A, VOUT2=1.8V, IOUT2=0-10A, Fs=400kHz, TA=Room Temp, No Air Flow
Unless otherwise specified.
Figure 21 - Start up waveforms for 2.5V output
Ch1: Vin, Ch2: Vout3, Ch3: SS1, Ch4:Vo1 (2.5V)
Figure 22 - Start up waveforms for 1.8V output
Ch1: Vin, Ch2: Vout3, Ch3: SS2, Ch4:Vo2 (1.8V)
Figure 23 - Start up waveforms
Ch1: Vin, Ch2: Vout3, Ch3: Vref
Figure 24 - Vo1, Vo2 and PGood
Ch1: Vin, Ch2: Vo1, Ch3: Vo2, Ch4: PGood



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