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NCP1580 Datasheet(PDF) 2 Page - ON Semiconductor

Part No. NCP1580
Description  Low Voltage Synchronous Buck Controller
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1580 Datasheet(HTML) 2 Page - ON Semiconductor

 
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NCP1580
http://onsemi.com
2
VIN
VOUT
Figure 2. Application Diagram; 12 V Input, 1.0 V at 20 A Output
BST
PHASE
TG
GND
BG
COMP
FB
VCC
3.3 nF
10 nF
15 k
1
mF
10 nF
68.1
5.36 k
20 k
0.1
mF
2.2
4.7 nF
2 x
1500
mF
4 x
22
mF
2 x
100
mF
2 x
1800
mF
GND
1
mH
Figure 3. Detailed Block Diagram
FAULT
SS
OSC
+
+
FB
COMP
Error Amp
0.8 V (VREF)
VCC
+
Clock
Ramp
OSC
OSC
R
S
Q
POR
FAULT
FAULT
+
Comparator
2 V
+
2 V
FAULT
TG
BST
PHASE
VCC
BG
GND
TSD
(VSS)
6
7
5
1
2
8
4
3


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