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GRM188R71E103KA01J Datasheet(PDF) 7 Page - International Rectifier

Part # GRM188R71E103KA01J
Description  4A Highly Integrated SupIRBuck Single?륤nput Voltage
Download  47 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

GRM188R71E103KA01J Datasheet(HTML) 7 Page - International Rectifier

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JANUARY 18, 2013 |DATA SHEET |    Rev 3.5
7
IR3897 
4A Highly Integrated SupIRBuck
TM  
Single‐Input Voltage, Synchronous Buck Regulator  
PD‐97663
PARAMETER 
SYMBOL 
CONDITIONS 
MIN 
TYP 
MAX 
UNIT 
Zero‐crossing Comparator Delay 
Tdly_zc 
Note 4  
256/Fs  
Zero‐crossing Comparator Offset 
Vos_zc 
Note 4 ‐4 
mV 
Oscillator 
Rt Voltage 
Vrt   
  
1.0  
  
Frequency Range 
Fs 
Rt = 80.6K 
270 
300 
330 
kHz 
Rt = 39.2K 
540 
600 
660 
Rt = 15.0K 
1350 
1500 
1650 
Ramp Amplitude 
Vramp 
Vin = 7.0V, Vin slew rate max = 
1V/µs, Note 4 
 
1.05  
Vp‐p 
Vin = 12V, Vin slew rate max = 
1V/µs, Note 4 
 
1.80  
Vin = 21V, Vin slew rate max = 
1V/µs, Note 4 
 
3.15  
Vin=Vcc=5V, For external Vcc 
operation, Note 4 
 
0.75  
Ramp Offset 
Ramp(os) 
Note 4  
0.16  
Min Pulse Width 
Tmin(ctrl) 
Note 4  
 
60 
ns 
Max Duty Cycle 
Dmax 
Fs = 300kHz, PVin = Vin = 12V 
86  
 
Fixed Off Time 
Toff 
Note 4  
200 
250 
ns 
Sync Frequency Range 
Fsync  
270  
1650 
kHz 
Sync Pulse Duration 
Tsync  
100 
200  
ns 
Sync Level Threshold 
High  
 
3  
 
Low  
 
 
0.6 
Error Amplifier 
Input Offset Voltage 
Vos_Vref 
VFb – Vref, Vref = 0.5V ‐1.5   
+1.5 
Vos_Vp 
VFb – Vp, Vp = 0.5V ‐1.5  
+1.5 
Input Bias Current 
IFb(E/A)  
‐1  
+1 
µA 
Input Bias Current 
IVp(E/A)  
0  
+4 
Sink Current 
Isink(E/A)  
0.4 
0.85 
1.2 
mA 
Source Current 
Isource(E/A)  
7.5 
11 
mA 
Slew Rate 
SR 
Note 4 
12 
20 
V/µs 
Gain‐Bandwidth Product 
GBWP 
Note 4 
20 
30 
40 
MHz 
DC Gain 
Gain 
Note 4 
100 
110 
120 
dB 
Maximum output Voltage 
Vmax(E/A)  
1.7 
2.0 
2.3 
Minimum output Voltage 
Vmin(E/A)  
 
 
100 
mV 
Common Mode input Voltage 
 
 
0  
1.2 
Reference Voltage 
Feedback Voltage 
Vfb 
Vref and Vp pin floating  
0.5   
Accuracy  
0°C < Tj < +70°C ‐0.5  
+0.5 


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