Specifications

SIM6600-M2 Hardware Design V1.00
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3 Interface Application
3.1 Power Supply
The recommended power supply of SIM6600-M2 is 3.7V and the voltage ranges from 3.135 V to 4.4 V. The
SIM6600-M2 has 5 power pins and 11 Ground pins, to ensure the SIM6600-M2 card works normally, all the
pins must be connected. The connector pin is defined to support 500mA current per pin continuously.
Table 7: VBAT pins electronic characteristic
Symbol Description Min. Typ. Max. Unit
VBAT Module power voltage 3.135 3.7 4.4 V
I
VBAT(peak)
Module power peak current in normal mode. - - 1 A
I
VBAT(power-off)
Module power current in power off mode. - TBD - uA
3.1.1 Power Supply Design Guide
Make sure that the voltage on the VBAT pins will never drop below 3.135V, even during a transmit event,
when current consumption may rise up to 1.0A. If the voltage drops below 3.135V, the module will be
powered off automatically.
Be sure the power supply for VBAT pins can support more than1.0A, using a total of more than 100uF
capacitors is recommended, in order to avoid the voltage drop to lower than 3.135V.
Some multi-layer ceramic chip (MLCC) capacitors (0.1/1uF) with low ESR in high frequency band can be
used for EMC.
These capacitors should be put as close as possible to VBAT pads. Also, users should keep VBAT trace on
circuit board wider than 1.0 mm to minimize PCB trace impedance. The following figure shows the
recommended circuit.
If the VBAT generated by a switch mode power supply,it is suggested to add a bead to suppress the
NOTE