SLVAFD0B may 2022 – september 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , TPS65219 , TPS65219-Q1 , TPS65220
VDD_CORE is the Core supply of the AM62x processor. This domain has two operating points. Table 5-1 compares the 0.75V and 0.85V operating points in terms of frequency, power consumption, power mapping and sequencing requirements. Since AM62x does not support dynamic voltage scaling, different TPS65219 orderable part numbers are used to support the 0.75 V or 0.85 V operating points.
VDD_CORE | ||
---|---|---|
0.75 V (Flexible Core) |
0.85 V (Lowest BOM option) |
|
Maximum operating frequency on A53SS (Cortex-A53x) | Up to 1.25 GHz | Up to 1.4 GHz |
Power Consumption | lower power consumption VDD_CORE (1) | higher power consumption (1) |
PMIC and Processor Power Mapping | Requires two PMIC rails; One to supply VDD_CORE at 0.75V and a second PMIC rail
to supply VDDR_CORE at 0.85V. Buck1, when configured to output 0.75V, is used to supply VDD_CORE. LDO2, when configured to output 0.85V, is used to supply VDDR_CORE. |
Lowest BOM option. Allows suppling VDD_CORE (Core supply) and VDDR_CORE (RAM supply) from the same PMIC rail. Buck1, when configured to output 0.85V, is used to supply both CORE rails. |
Sequencing | Power-up and power-down sequence requirements. VDD_CORE needs to ramp up before VDDR_CORE. VDD_CORE needs to ramp down after VDDR_CORE. |
No sequencing requirements for the CORE supplies as they are both supplied by the same PMIC rail. |
(1) For information on the processor power consumption, see the AM62x Power Estimation Tool application note.