V IN
START
EN
START
START
EN
BAT
P_GND
D_GND
VDD
P_GND
BATT
D_GND
D_GND
P_GND
P_GND
VCC
D_GND
BATT
VCC
D_GND
USB_VBUS
P_GND
P_GND
D_GND
VCC
P_GND
VB
P_GND
P_GND
P_GND
VCC
P_GND
D_GND
VCC
VCC
VCC
D_GND
P_GND
P_GND
D_GND
P_GND
P_GND
OFF
2
V_ADJ
2
PLAY/PAUSE
2
USB_VBUS
3
USB_VBUS
3
CHG_OK
2
HOLD
VCC1V8
2
DFU
A_GND
SW1
SK??
1
4
2
3
R86
330K
C48
106/X5R
Q7
SS8050LT
C86
SFI0402-050E100NP
C91
106/X5R
R57
47K
R54
10K
BAT1
Q4
MMST3906
5V
R43
100K±1%
R64
100K
R53
2.7K±1%
D9
1N4148WS
R93
10M
C93
102
R95
47K
R97
1M
R14
100R
C45
106/X5R
C44
47PF
R89
10K
R10
1K
Q8
MMST3904
U6
TPS62200/FAN5307* SOT23-5
VI
1
GND
2
EN
3
FB
4
SW
5
R42
240K±1%
Q5
SS8050LT
C88
SFI0402-050E100NP
PLAY
VDD
L22
601 DCR<350m
Ω
C94
103
VCC
Q1
SI2305DS SOT23
D
S
G
D15
1N4148WS
D8
1N4148WS
R46
47k
C95
106/X5R
R101
1K
C96
475
U16
TPS79333DBVR SOT23-5
VIN
1
GND
2
EN
3
BYPASS
4
VOUT
5
C85
SFI0402-050E100NP
R87
330K
U8
MCP73832T
VDD
1
VDD
2
START
5
NC
7
VSS
6
VBAT
3
PROG
8
VBAT
4
R45
10k
R65
10K
CN3
BAT
1
2
R94
100K
R85
100k
R92
330K
R88
1M
L13
CDRH3D16-100
SW2
DFU
BAT
C99
105
D12
1N4148WS
R98
68K
D5
BAT43WS
R96
2.7M
C98
101
U14
XC6206P152
VI
2
GN
D
1
VOUT
3
R58
47K
C87
475/X5R
R90
10K
R52
0R
R44
390K±1%
-
66
-