Datasheet

PM8903A PM8903A demonstration board
Doc ID 024147 Rev 1 25/33
Figure 14. PM8903A demonstration board schematic
BOOT
PM8903A
R
12
C
13
C
14
COMP
R
11
C
12
EN
VIN
VCC
GND
R
1
C
6
, C
8
, C
9
C
4
C
2
, C
3
PGND
R
2
VCC1
C
1
12 11
Q
1
C
5
R
6
PHASE
C
10
R
8
L
1
SYNCH
PGOOD
PSKIP/MS
FB
9
10
R
14
R
15
R
16
R
17
R
13
R
10
R
7
R
3
R
4
D
1
R
5
VIN1
VCC
R
9
C
7
1
2
3
8
13, 14
15, 16, EP
5, 6, 7
4
BOOT
PM8903A
R
30
C
28
C
29
COMP
R
29
C
27
EN
VIN
VCC
GND
C
22
, C
23
, C
24
C
20
C
18
, C
19
PGND
R
20
VCC2
C
17
12 11
Q
2
C
5
R
6
PHASE
C
26
R
26
L
2
SYNCH
PGOOD
PSKIP/MS
FB
9
10
R
32
R
33
R
34
R
35
R
31
R
28
R
25
R
21
R
22
D
2
R
23
VIN2
R
27
C
25
1
2
3
8
13, 14
15, 16, EP
5, 6, 7
4
R
18
ON ON
1 2
SW
1
EN1 EN2
MARGIN1
MARGIN2
VOUT2
VOUT1
C
11
R
19
VIN
C
15
C
16
JP
1
JP
2
VIN1
VIN2
EN1
EN2