User Manual

Page 8
Figure 1-3: Power supply schematic
VCC-3.3VAVCC
FP1
C1
100nF
C2
2.2uF
R8
470
LD3
VCC-3.3V
R14
100K
R12
100K
VCC-BAT
R13
100K
C13
100nF
M1
DMP2305U
R10
1M
R11
1K
VCC-BAT
RB12-VSENSE
RF13-SENSEL
HDR2
VCC-3.3V
HDR1
VCC-3.3V
VSYS
C26
10nF
FP2
FERRITE
1
2
3
4
5
GND
ID
D+
D-
VBUS
CN2
USB MINIB
VCC-USB
VCC-BAT
CN1
BATT
CONN
C38
2.2uF
VCC-BAT
PWR-EN
C18
100nF
LDO3V3
R17
1K
1
2
3
4
5
6
SW1
JS202011AQN
VCC-3.3
VCC-3.3V
C14
22uF
VCC-3.3V
C17
1uF
LDO3V3
C15
1uF
VCC-3.3V
C16
10nF
VCC-3.3V
ILIM0
1
ILIM1
2
LDO3V3
3
CLPROG
4
NTC
5
VOUT4
6
VOUT4
7
SW4
8
MODE
9
FB4
10
FB3
11
VC3
12
SWAB3
13
VIN3
14
VIN3
15
VOUT3
16
VOUT3
17
EN3
18
SWCD3
19
EN2
20
EN1
21
VIN4
22
FB2
23
VIN2
24
SW2
25
SW1
26
VIN1
27
FB1
28
PROG
29
CHRG#
30
GATE
31
BAT
32
EN4
33
VOUT
34
VBUS
35
VBUS
36
SW
37
FAULT#
38
LTC3586
U2
LTC3586-1
L1 3.3uH
L2 2.2uH
M2
DMP2305U
R15
2K2
C22
22uF
C31
22uF
VCC-USB
VCC-USB
C32
10uF
VCC-3.3V
C23
10pF
R21
15K
C24
300pF
R19
324K
R22
105K
C21
33pF
VCC-3.3VVCC-3.3V
C19
2.2uF
VSYS
VSYS
L3
2.2uH
VSYS
R27
16K9
C29
10pF
C30
22uF
VCC
-5V
VCC-5V VCC-5V VCC-5V
R18
3K3
R26
88K7
C25
100nF
R23
1K69
LD4B
RED
LDO3V3
VSYS
PWR-ENPWR-EN
C20
2.2uF
VCC-BAT
R20
10K
C27
1uF
VCC-5V
C28
10nF
VCC-5V
R16
10K
LDO3V3LDO3V3
VCC-USB
RG15-STAT
LDO3V3
FAULT