Power Supply Sharing Guidelines
Power Pin Name | Regulator Count | Voltage Level (V) | Supply Tolerance | Power Source | Regulator Switching | Notes |
---|---|---|---|---|---|---|
VCCINT | 1 | 1.0/1.2 | ± 30 mV/± 50 mV | Switcher (*) | Share | You have the option to share VCCD_PLL with VCCINT using a proper isolation filter. With proper isolation filter, limit the VCCD_PLL power supply to ±3% maximum ripple voltage. Depending on the regulator capabilities, this supply may be shared with multiple Intel® Cyclone® 10 LP devices. Use the Early Power Estimation (EPE) tool within the Intel® Quartus® Prime software to assist in determining the power required for your specific design. |
VCCD_PLL | Isolate | |||||
VCCIO | 2 | Varies | ± 5 % | Linear or Switcher (*) | Share if 2.5 V | If VCCIO requires 2.5 V, you have the option to share VCCA with VCCIO using a proper isolation filter. However, for any other VCCIO voltage, you will require a 2.5 V regulator for VCCA. Use the Early Power Estimation (EPE) tool within the Intel® Quartus® Prime software to assist in determining the power required for your specific design. |
VCCA | 2.5 | Isolate | You have the option to share VCCA with VCCIO using a proper isolation filter. With proper isolation filter, limit the VCCA power supply to ±3% maximum ripple voltage. Depending on the regulator capabilities, this supply may be shared with multiple Intel® Cyclone® 10 LP devices. Use the Early Power Estimation (EPE) tool within the Intel® Quartus® Prime software to assist in determining the power required for your specific design. |
Each board design requires its own power analysis to determine the required power regulators needed to satisfy the specific board design requirements.
Figure 1. Example Power Supply Sharing Guidelines for Intel® Cyclone® 10 LP Devices