Ldo - SimCom SIM7000G User Manual

Input Range
Input serial resistance
Note: "AT+CADC" can be used to read the voltage of the ADC pin, for more details, please refer
to document [1].
3.9.2

LDO

SIM7000 has a LDO power output named VDD_EXT. The output voltage is 1.8V.
Table 18: Electronic characteristic
Symbol Description
V Output voltage
VDD_EXT
I Output current
O
Note ： The VDD_EXT is used to the IO power in the module. The Output voltage is not supported
to set.
SIM7000 _Hardware Design _V1.00
Figure 27：Power on sequence of the VDD_EXT
Min.
1.7
-
Smart Machine Smart Decision
0.1
1
–
Typ.
1.8
-
1.7 V
MΩ
–
Max. Unit
1.9 V
50 mA
2017-05-23