Product Info

Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 28 / 118
O
internal RTC circuit
When VBAT is not
connected
:
V
I
=2.1V~3.25V
LDO13A_1
P8
9
PO
1.8V output power
supply
Vnorm=1.8V
I
O
max=20mA
Power supply for
external GPIO’s
pull up circuits and
level shift circuit.
LDO7B_3P
125
157
PO
3.125V output power
supply
Vnorm=3.125V
I
O
max=150mA
Power supply only
for DP switch
LDO11A_1P
8
10
PO
1.8V output power
supply
Vnorm=1.8V
I
O
max=150mA
Power supply for
I/O VDD of
cameras, LCDs
and TP etc.
LDO14A_1
P8
158
PO
1.8V output power
supply
Vnorm=1.8V
I
O
max=150mA
Power supply for
Sensors. Add a
1.0uF~4.7uF
bypass capacitor if
used.
If unused, keep
this pin open.
LDO3B_2P
8
12
PO
2.8V output power
supply
Vnorm=2.8V
I
O
max=600mA
Power supply for
sensor and LCM.
Add a 1.0uF~2.2uF
bypass capacitor if
used.
If unused, keep
this pin open.
VPH_PWR
30
PO
VBAT output power
supply
Vnorm=VBAT
I
O
max=1000mA
Power supply for
other ICs.ICs
GND
3，4，18 ，
20，24，
31，34，
35，40，
Ground