User Guide

ME910G1 Preliminary HW Design Guide
1VV0301593 Rev.2 Page 27 of 95 2020-01-13
4. POWER SUPPLY
The power supply circuitry and board layout are a very important part in the full product
design and they strongly reflect on the product overall performances, hence read carefully
the requirements and the guidelines that will follow for a proper design.
Power Supply Requirements
The external power supply must be connected to VBATT and VBATT_PA pads and must
fulfil the following requirements:
Power Supply
Value
Nominal Supply Voltage
3.8V
Operating Voltage Range
3.40 V - 4.20 V
Extended Voltange Range
2.60 V - 4.50 V
VBATT
min
2.60V
CAUTION:
The range 2.60V - 3.20V can be used only if both USB and 2G are
disabled.