mikroElektronika mikromedia for STM32 Manual page 9

AVCC VCC-3.3
FP4
C36 C25
2.2uF 100nF
VCC-BAT
VCC-BAT
R6
4K7
VREF-1.8
R49
4K7
VSENSE
R34
4K7
VCC-3.3
R39
VCC-3.3 VCC-3.3
4K7
R35 R36
LD2
10K 10K
CHARGE
STAT
Q4
BC846
VCC-SYS VCC-USB
PMEG3010ER
FERRITE
D1
DMP2160UW
M1
R43
10K
+
CN1
-
BATT CONN
VCC-3.3
VCC-1.8
FP3
C30 C34
2.2uF 100nF
Figure 1-3: Power supply schematics
VCC-3.3 VCC-BAT
R45
1K
R38
R37 10K
10K
E5
10uF
Q5
BC846
CN3
FP2
1
VBUS
2
D-
3
D+
4
ID
5
C28
GND
10nF
USB MINIB
VCC-1.8
C29
E10
10uF
2.2uF
U3
1 5
Vin Vout
2
GND
3 4
EN ADJ
AP7331-ADJ
VCC-SYS
C40
E7
10uF
2.2uF
U5
1 5
STAT PROG
2
VSS
3 4
VBAT VDD R44
3K9
MCP73832
Charging Current approx. 250mA
Page 9
VCC-SYS
HDR1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VCC-1.8
15
16
17
R47
18
120K
19
20
21
R46
22
22K
23
24
R50
VCC-3.3 25
12K1
26
M1X26
VCC-SYS VCC-3.3
R26
2K2
LD1
E3
POWER
10uF
HDR2
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
VCC-3.3 51
52
M1X26
REG1
1
Vin
2
GND
3
Vout
LD29080DT33
E4
10uF