Functional Diagram
Functional Diagrams
Power Supply Operational Modes
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MAX32675
MAX32675
0.855V to 1.155V
0.855V TO 1.155V
LiON 2.7 to 5.5V
Li+
2.7V TO 5.5V
VBAT
V
BAT
Digital Power-Supply Input. Bypass with 100nF to VSS and 1μF with 10mΩ to 150mΩ ESR to VSS.
VCORE
V
CORE
Power Supply Input. This pin must always be connected to the VDDA device pin at the PCB level. Bypass this pin with 100nF to VSS and 1μF with 10mΩ to 150mΩ ESR to VSS.
VDDIO
V
DDIO
2.7V to 3.63V
2.7V TO 3.63V
POWER MANAGEMENT
POWER
MANAGEMENT
MAX32675
MAX32675
STANDARD CELL
STANDARD
CELL
VBAT
V
BAT
Digital Power-Supply Input. Bypass with 100nF to VSS and 1μF with 10mΩ to 150mΩ ESR to VSS.
VCORE
V
CORE
Power Supply Input. This pin must always be connected to the VDDA device pin at the PCB level. Bypass this pin with 100nF to VSS and 1μF with 10mΩ to 150mΩ ESR to VSS.
VDDIO
V
DDIO
2.7V to 3.63V
2.7V TO 3.63V
Digital Ground
VSS
V
SS
MULTI- SUPPLY OPERATION
MULTISUPPLY OPERATION
SINGLE-SUPPLY OPERATION
SINGLE-SUPPLY OPERATION
This device pin can be configured as a LDO output or a voltage supply input. Bypass with 100nF to VSS. Do not connect this device pin to any other external circuitry.
VDD18
V
DD18
Analog Supply Voltage. This pin must always be connected to the VDDIO device pin at the PCB level. Bypass this pin to VSSA with 1.0μF and 0.01μF capacitors as close as possible to the package.
VDDA
V
DDA
100nF
100nF
1.71V to 1.98V
1.71V TO 1.98V
Digital Ground
VSS
V
SS
Analog Ground
VSSA
V
SSA
1µF
1µF
100nF
100nF
1µF
1µF
100nF
100nF
1µF
1µF
100nF
100nF
1µF
1µF
10nF
10nF
1µF
1µF
100nF
100nF
This device pin can be configured as a LDO output or a voltage supply input. Bypass with 100nF to VSS. Do not connect this device pin to any other external circuitry.
VDD18
V
DD18
100nF
100nF
Analog Supply Voltage. This pin must always be connected to the VDDIO device pin at the PCB level. Bypass this pin to VSSA with 1.0μF and 0.01μF capacitors as close as possible to the package.
VDDA
V
DDA
1µF
1µF
10nF
10nF
Figure 5. Power Supply Operation Modes
