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IR3897MPBF 데이터시트(PDF) 39 Page - International Rectifier

부품명 IR3897MPBF
상세설명  4A Highly Integrated SupIRBuck Single?륤nput Voltage
PDF  47 Pages
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제조업체  IRF [International Rectifier]
홈페이지  http://www.irf.com
Logo IRF - International Rectifier

IR3897MPBF 데이터시트(HTML) 39 Page - International Rectifier

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JANUARY 18, 2013 |DATA SHEET |    Rev 3.5
39
IR3897 
4A Highly Integrated SupIRBuck
TM  
Single‐Input Voltage, Synchronous Buck Regulator  
PD‐97663
TYPICAL OPERATING WAVEFORMS 
Vin = 12V, Vo = 1.2V, Iout = 0‐4A, Room Temperature, No Air Flow  
  
 
 
 
 
 
 
Figure 38: Turn on at No Load showing Vcc level,  
 
           Figure 39: Turn on at Full Load showing Vcc level,  
  Ch1:Vin, Ch2:Vo, Ch3:Vcc, Ch4:Inductor Current    
 
               Ch1:Vin, Ch2:Vo, Ch3:Vcc, Ch4:Inductor Current 
 
 
 
 
 
 
 
 
 
 
 
 
40: Transient Response, 2A to 4A step @2.5A/uSec slew rate,  
Ch2:Vout, Ch4‐Iout (1A/Div) 



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