The SAM L10/L11 requires a single supply from 1.62V to 3.63V.
The following figures show the recommended power supply
connections for two voltage regulators use cases:
- LDO mode only
- LDO/BUCK modesNote: By default the LDO voltage regulator is enabled after any reset. Switching to BUCK mode is then required to benefit from its power efficiency.
Figure 1. Power
Supply Connections for Linear (LDO) Mode Only
Note: Refer to "Schematic Checklist" chapter for additional information.
Figure 2. Power
Supply Connections for Switching (BUCK) / Linear (LDO) Modes
Note: Refer to "Schematic Checklist" chapter for additional information.