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NRF52820-QDAA-R Datasheet(PDF) 52 Page - Nordic Semiconductor

Part # NRF52820-QDAA-R
Description  nRF52820
PDF  437 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 52 Page - Nordic Semiconductor

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Power and clock management
Main supply
REG0
LDO
REG1
LDO
DC/DC
REGOUT0
DCDCEN
VDD
DCC
GND
VDDH
DEC4
1.3V System power
Supply
Figure 15: High Voltage mode, REG1 LDO
Main supply
REG0
LDO
REG1
LDO
DC/DC
REGOUT0
DCDCEN
VDD
DCC
GND
VDDH
DEC4
1.3V System power
Supply
Figure 16: High Voltage mode, REG1 DC/DC
5.3.1.4 Power supply supervisor
The power supply supervisor enables monitoring of the connected power supply.
The power supply supervisor provides the following functionality:
• Power-on reset - signals the circuit when a supply is connected
• An optional power-fail comparator (POF) - signals the application when the supply voltages drop below
a configured threshold
• A fixed brownout reset detector - holds the system in reset when the voltage is too low for safe
operation
4463_156 v1.0
52



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