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PMIC suggestion w/ power tree for Intel/Arria cyclone 10 GX ?

Other Parts Discussed in Thread: TPS65218D0, TIDA-00607, TIDA-00606, BOOSTXL-TPS65218, TPS65086, TPS650861


Do we have PMIC or power tree for Intel/Arria cyclone 10 GX ?

  • Prahlad,

    We do not yet have an official published solution for Intel Cyclone 10 GX. I assume you meant "Intel/Altera" because Arria is a different family of FPGA vs. Cyclone.

    We have two Test Report-style TI Designs for the TPS65218D0 as a solution for powering Intel FPGAs: TIDA-00606 is for Cyclone V and TIDA-00607 is for MAX 10.

    The power tree for Cyclone 10 GX is as follows:
    Core (0.9V) < 3A
    TX/RX (0.95V) < 0.6A
    I/O & Aux (1.8V) < 1.5A
    I/O & Aux (3.0V) < 0.6A

    If your customer's FPGA Power Estimator concludes that the current consumption of the Core rail is <1.8A (DC avg.) then the TPS65218D0 will also be a good solution for the Cyclone 10 GX. The wiring of DCDC1-4 and LDO1 from the PMIC to the FPGA would be based on the customer's needs, but a good starting point would be:
    Core (0.9V) = DCDC1
    TX/RX (0.95V) = DCDC2
    I/O & Aux (1.8V) = DCDC4
    I/O & Aux (3.0V) = LDO1
    DDR Memory, if needed, could be connected to DCDC3.

    You can use the BOOSTXL-TPS65218 to re-program IC samples and test this solution.
  • According to, the TPS65086 might be a fit. Looping in the expert for this device to comment.

    Best Regards,
    Rick S.

  • Thanks Brian for quick suggestion.

    Which device would you recommend for below power requirement (V1 rating is 0.9V @ 3.8A) ?

    • Voltage Group 1:- 0.9V/3.8A
    • Voltage Group2:- 0.95V/0.5A
    • Voltage Group3:- 1.8V/0.8A
    • Voltage Group4:-1.35V/0.059A (not there in cyclone 10GX datasheet)
  • Prahlad,

    The TPS65086 would be a good option for these requirements. It has three BUCK controllers which use external FETs, so as long as they FETs are sized appropriately it can support 0.9V @ 3.8A continuous.

    Something to also consider would be the TPS650861. This is the same device as the TPS650860, but is designed to be a sort of “blank” device that can be re-programmed to meet different design requirements. The key difference with this device is that the voltage rails are all disabled by default so they can’t accidentally turn on and apply a voltage before the output is adjusted through I2C (for example applying 1.2V before I2C communication changes it to 1.35V), and the OTP memory can be re-programmed. In the TPS650860 the OTP memory can’t be re-programmed, only the volatile memory, so the changes made to output voltages, sequencing, and all other settings would have to be set each time the device is powered on, instead of just setting the OTP memory once. The performance should be the same for the TPS650861 as it is for any of the other TPS65086x devices with a factory OTP.