ncp3126 ON Semiconductor, ncp3126 Datasheet - Page 21

• Manufacturer Part Number: ncp3126
• Description: Ncp3126 3 A Synchronous Pwm Switching Converter
• Manufacturer: ON Semiconductor

GND_IN
VIN
Vin
470uF
16V
C3
56n
10V
CC
RC
2.1k
C1
16V
10uF
CP
1.8nF
50V
COMP
4
3
2
1
Figure 31. Standard Application 12 V to 2.5 V 3 A
AGND
COMP
FB
PGND
NCP3126
U1
ISET
VSW
BST
VIN
RSET
39k
5
6
7
8
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16V
C11
0.01uF
21
10R
R3
C10
1uF
16V
BST
MMSD4148T1G
D1
CBST
25V
10nF
100R
R9
C9
1nF
50V
VSW
LOUT
6.8uH
21.5k
R1
10k
R2
CF
180pF
10V
RF
20k
FB
22uF
6.3V
C4
GND
C7
470uF
6.3V
CHF
820pF
6.3V
VOUT
Vout
GND