22 / 37
User Manual
□
Normal
□
Internal Use
Confidential
□
Restricted Confidential
6. Design Guide
6.1. Power supply
The LTE module power input is VCC. The internal power chipset will transform VCC to other
power levels.
Power
Pin Name
Pads
Description
Voltage Level (V)
Min. Typ. Max.
VCC
VCC1 to VCC6
Nos. 37 to 42
Main Power Supply
3.3
3.8
4.2
Table 6-1. Power supply voltage level
The IMQ6 module includes an integrated power manager that enables single and direct
voltage supply from the battery and reduces the overall bill of materials. The typical voltage
of 3.8V is recommended.
Schematic suggestion:
We highly recommend separating module power supply into two
paths to maintain clean power as shown below for TX spurious performance. The VPH_PWR
is for baseband and RF circuits.
Layout Suggestion:
22μF, 0.1uF, 12pF and 8pF capacitors must be placed as close to VCC
pins as possible. Each power trace must possess sufficient line width to
withstand its respective current load, as listed in the table below:
