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LDO6_1V8
125
LDO17_
129
2V85
SD_LDO11
38
SD_LDO12
32
3, 7, 12, 15,
27, 51, 62,
69, 76, 78,
85, 86, 88,
89, 120,
122, 130,
132, 135,
140, 143,
144,
GND
147~150,
160~178,
180~182,
184~186,
188, 189,
192, 193,
198, 200,
201, 208,
209
SC20-WL_Hardware_Design
1.8V output power
PO
supply
2.85V output power
PO
supply
Power supply for SD
PO
card
1.8V/2.95V output
PO
power supply
GND
Smart Wi-Fi Module Series
SC20-WL Hardware Design
pull up circuits and
level
conversion circuit.
Power supply for
peripherals.
2.2uF~4.7uF
capacitor is
Vnorm=1.8V
recommended to
I
max=100mA
O
be applied to the
LDO6_1V8 pin.
If unused, keep this
pin open.
Power supply for
peripherals.
2.2uF~4.7uF
capacitor is
Vnorm=2.85V
recommended to
I
max=300mA
O
be applied to the
LDO17_2V85 pin.
If unused, keep this
pin open.
Vnorm=2.95V
I
max=600mA
O
Power supply for
Vnorm=2.95V
SD card's pull-up
I
max=50mA
O
circuit.
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