System Description 4
miriac SBC-LS1043A2 User Manual
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© MicroSys Electronics GmbH 2017
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The 5V DC are fed to a secondary step-down converter, which produces 3.3V
DC / max. 4A peak.
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Two NCP1529 produce 1.8V and 1.5V from 3.3V, which are used for both
PCIe and onboard devices.
The following diagram shows the Power Supply structure:
4.6.4 RTC Backup Battery
The RTC on the module is supplied from a 470mF supercap that is loaded by the
5V power source on the carrier board.
Alternatively, there’s another version of the carrier board available that has a
backup battery holder for CR2032 batteries. Please contact MicroSys for more
information.
Part Reference:
BAT1
Manufacturer:
Renata Batteries
Type:
VBH2032-1
Used with:
CR2032 batteries
Figure 4-6 Power supply structure
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