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NCP5422A Datasheet(PDF) 6 Page - ON Semiconductor

Part No. NCP5422A
Description  Dual Out−of−Phase Synchronous Buck Controller with Current Limit
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP5422A Datasheet(HTML) 6 Page - ON Semiconductor

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NCP5422A, NCP5423
http://onsemi.com
6
VCC
Set
Dominant
IS+1
PWM
Comparator 1
PWM
Comparator 2
Reset
Dominant
CURRENT
SOURCE
GEN
BST
FAULT
BIAS
FAULT
R
S
R
S
R
S
RAMP1
GATE(H)1
5.0
mA
0.425 V
0.25 V
COMP1
-
+
+
+
+
COMP2
VFB1
RAMP2
FAULT
FAULT
Reset
Dominant
GATE(L)1
GATE(H)2
GATE(L)2
GND
VCC
BST
VCC
RAMP1
RAMP2
CLK1
CLK2
OSC
0.425 V
1.0 V
E/A2
E/A OFF
E/A1
E/A OFF
ROSC
Q
1.2 mA
VFB2
1.0 V
VCC
+
+
IS−1
IS+2
IS−2
8.6 V
70 mV
70 mV
BST
Figure 2. Block Diagram
7.8 V
FAULT
FAULT
non−overlap
non−overlap


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