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Figure 2-2: Power supply schematic
3.3V VOLTAGE REGULATOR
R10
470
PWR
VCC-3.3
VCC-5V
FP1
FERRITE
C5
100nF
1
2
3
4
5
GND
ID
D+
D-
VBUS
CN1
USB MINIB
1
2
3
4
5
6
7
8
9
10
HD2
VCC-3.3
2
3
1
GND
Vin
Vout
REG1
LD29080DT33
C12
10uF
C7
10uF
VCC-3.3
VCC-5V