Quectel Smart Module Series Hardware Design page 20

VREG_S4A_1V8
LVS1A_1V8
LVS2A_1V8
LDO12A_1V8
LDO14A_1V88
LDO19A_3V0
SA800U-WF_Hardware_Design
J2-124,
J2-126, PO 1.8 V output
J2-128
J1-149 PO 1.8 V output
J2-148 PO 1.8 V output
J3-12 PO 1.8 V output
J4-9 PO 1.8 V output
J2-150 PO 3.0 V output
Smart Module Series
SA800U-WF Hardware Design
Vnom = 1.8 V
I max = 2000 mA
O
Vnom = 1.8 V
I max = 300 mA
O
Vnom = 1.8 V
I max = 100 mA
O
Vnom = 1.8 V
I max = 300 mA
O
Vnom = 1.8 V
I max = 50 mA
O
Vnom = 3.0 V
I max = 600 mA
O
Power supply for
external GPIO's
pull-up circuit and
level shift circuit.
Power supply for
IOVDD of
cameras.
Add a 1.0–4.7 μF
bypass capacitor if
used.
If unused, keep
this pin open.
Power supply for
IOVDD or VDD of
sensors.
Add a 1.0–2.2 μF
bypass capacitor if
used.
If unused, keep
this pin open.
Connect this pin to
SHDN of
SMB1355 parallel
charger to make
the charger enter
low power mode.
If SMB1355 is
unused, keep this
pin open.
Power supply for
IOVDD of TP and
LCDs.
Add a 1.0–4.7 μF
bypass capacitor if
used.
If unused, keep
this pin open.
Power supply for
sensors
Add a 1.0–2.2 μF
bypass capacitor if
used.
If unused, keep
this pin open.
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