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IR3894 Datasheet(PDF) 10 Page - International Rectifier

Part # IR3894
Description  12A Highly Integrated SupIRBuck Single?륤nput Voltage
Download  45 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3894 Datasheet(HTML) 10 Page - International Rectifier

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JANUARY 18, 2013 | DATA SHEET |    Rev 3.4
10
IR3894 
12A Highly Integrated SupIRBuck  
Single‐Input Voltage, Synchronous Buck Regulator  
PD‐97745
TYPICAL EFFICIENCY AND POWER LOSS CURVES 
 
PVin = 12V, Vcc = Internal LDO (4.4V/6.4V), Io = 0A‐12A, Fs = 600kHz, Room Temperature, No Air Flow. Note that the 
efficiency and power loss curves include the losses of IR3898, the inductor losses and the losses of the input and output 
capacitors. The table below shows the inductors used for each of the output voltages in the efficiency measurement. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Vout(V)
Lout(µH)
P/N
DCR(mΩ)
1
0.51
59PR9876N (Vitec)
0.29
1.2
0.51
59PR9876N (Vitec)
0.29
1.8
0.72
744325072(Wurth Elektronik)
1.3
3.3
1.2
744325120(Wurth Elektronik)
1.8
5
1.2
744325120(Wurth Elektronik)
1.8


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