NL865H2 Hardware Design Guide
1VV0301616 Rev. 7
Page
20
of
67
2020-04-20
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 & VBATT_PA signals and must
fulfil the following requirements:
Power Supply
Value
Nominal Supply Voltage
3.3V
Operating Voltage Range
3.00 V÷ 3.60 V
Extended Voltage Range
2.10 V÷ 3.63 V
VBAT
min
2.10V
Absolute Maximum Voltage
3.63V
NOTE:
The Operating Voltage Range MUST never be exceeded; care must be
taken when designing the application’s power supply section to avoid having
an excessive voltage drop.
If the voltage drop is exceeding the limits it could cause a Power Off of the
module.
Overshoot voltage (regarding MAX Extended Operating Voltage) and drop in
voltage (regarding MIN Extended Operating Voltage) MUST never be
exceeded.
The electrical design for the Power supply should be made ensuring it will
be capable of a peak current output of at least 500mA.
