The following figures shows the recommended power supply connections for Switched/Linear mode and Linear mode only.
Signal Name | Recommended Pin Connection | Description |
---|---|---|
VDDIO | 1.62V to 3.63V Decoupling/filtering capacitors 100 nF(1,2) and 10 µF(1) Decoupling/filtering inductor 10 μH(1,3) |
Digital supply voltage |
VDDANA | 1.62V to 3.63V Decoupling/filtering capacitors 100 nF(1,2) and 10 µF(1) Ferrite bead(4) prevents the VDD noise interfering with VDDANA |
Analog supply voltage |
VDDCORE | 0.9V to 1.2V typical Decoupling/filtering capacitors 100 nF(1,2) and 1µF(1) |
Linear regulator mode: Core supply voltage output/external
decoupling pin Switched regulator mode: Core supply voltage input, must be connected to VDDOUT via inductor (5) |
VDDOUT | Switching regulator mode: 10 µH inductor (5) Linear regulator mode: Not connected |
On-chip Switching mode regulator output |
GND | Ground | |
GNDANA | Ground for the analog power domain |