NCV97310MW33GEVB
http://onsemi.com
13
SCHEMATIC
(3.3 V)
(1.8
V
)
(1.2 V)
Place CIN0, L0, CIN1, CIN2 on VBAT side.
Place CIN3 close to VINL (pin 29)
Place CIN4 close to VBAT (pin 1)
Place close
to VIN2
50V
Place close
to VIN2
Place GND near
ERRB for logic
reference.
Place CIN5 on
bottom of PCB
BST3
VOUT3
VOUT2
ROSC
SW1
VBAT_IC
STBYB
EN2
ERRB
RST2B
RST3B
EN
FB3
EN3
FB2
VIN2
BST2
COMP1
VOUT1
VBAT
SW3
VIN2
VIN2
RST1B
SW2
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
VOUT1
CCOMP1
330 pF
CO14
1 uF
R5
10K
R6
10K
CDRV1 0.1 uF
VIN2
L1
4.7 uH
GND0
1
J1
1
2
VBAT_1
CDRV2
0.47 uF
COUT21
10 uF
COMP1
TP1
C1
100 pF
TP2
CIN2
4.7 uF
U1
NCV97310MW33R2G
VBAT
1
EN
2
STBY
3
RDEPTH
4
RMOD
5
RST1
6
COMP1
7
ROSC
8
ERR
9
EN2
10
RST2
11
GND1
12
RST3
13
FB3
14
EN3
15
BST3
16
GND3
17
SW3L
18
SW3H
19
VDRV2
20
VIN3
21
VIN2
22
SW2
23
GND2
24
BST2
25
FB2
27
VOUT
28
VINL
29
BST1
30
VDRV1
31
SW1
32
NC
26
EPAD
33
CSNB2
100 pF
CIN0
4.7 uF
CIN5
100 uF
VBAT
1
VOUT3
1
R3
10K
COUT32
10 uF
VOUT2
RSNB2
10.0
CCOMP2
22 pF
J2
1
2
STBYB
RFB2L
20.0K
GND1
1
EN
DRV1
COUT13
10 uF
GND
GND3
1
CSNB3
100 pF
VOUT1
D1
NRVB440MFS
EN2
COUT12
10 uF
VOUT1
1
SW1
CO15
4.7 uF
R7
0.0
ROSC
DNP
RSNB3
10.0
RFB3L
DNP
R1
0.0
FB2
CIN1
4.7 uF
TP3
COUT31
10 uF
J4
1
2
L2
2.2 uH
ERRB
RCOMP1
12.4K
EN3
CBST2
0.1 uF
C2
100 pF
VOUT3
VOUT2
1
SW2
RST2B
COUT11
10 uF
CBST3
0.1 uF
R2
0.0
C3
0.1 uF
J3
1
2
CIN4
2.2 uF
RFB3U
10K
RST3B
SW3
RDEPTH
DNP
CBST1
0.1 uF
COUT22
10 uF
GND2
1
FB3
R4
10K
L0
1.0 uH
L3
1.0 uH
RST1B
CIN3
1 uF
RFB2U
10K
RMOD
DNP
VIND
