System-On-Module Power Architecture; Electrical Characteristics - Digi ConnectCore 93 Hardware Reference Manual

System-on-module power architecture

The ConnectCore 93 requires two primary power supply inputs: VSYS and VSYS2. These supplies are
the input power supplies to the on-module NXP PCA9451 power management IC (PMIC), which
generates all required supply voltages for the module as well as the external interfaces.
The following table summarizes the PMIC regulators and switches on the ConnectCore 93 SOM:
PMIC
regulator
BUCK1
BUCK2
BUCK3
BUCK4
BUCK5
BUCK6
LDO1
LDO2
LDO3
LDO4
LDO5
Load switch
In addition to the input power supplies of the PMIC, other power domains of the SOM must also be set
externally. This allows power management flexibility so you can adapt the input voltage of the
different interfaces. The following table lists the input power rails that must be powered externally to
the SOM together with the devices/power domains they power:
Input rail Internally connected to
NVCC_SD2 NVCC_SD2 pin of the i.MX93 CPU IO supply for uSDHC2

Electrical characteristics

Input power rails
The following table lists the electrical specifications of all input power rails for the ConnectCore 93:
Device SOM power rail
PMIC VSYS
ConnectCore 93 System-on-Module
SOM power rail Input power
name supply
- VSYS2
- VSYS2
- VSYS2
3V3 VSYS
1V8 VSYS2
- VSYS2
- VSYS2
LDO2 VSYS2
LDO3 VSYS2
- VSYS2
MUX_3V3_1V8 VSYS2
SWOUT SWIN
Input voltage (V)
Minimum
3.7
Internally
used
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
NO
NO
Description
Typical Maximum
1
- 6.0
Power interfaces
Externally
available
NO
NO
NO
YES
YES
NO
NO
YES
YES
NO
YES
YES
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