SCEA113 October   2021 TPS650861 , TPS650864

 

  1.   Trademarks
  2. 1Introduction
  3. 2TPS65086x Overview
  4. 3TPS65086x Variants
  5. 4TPS65086x Selection Guide
  6. 5TPS650861 Programming Information
  7. 6Example Power Maps
    1. 6.1 Always On: Power and Efficiency Optimized (-1L and -2L devices)
    2. 6.2 Always On: Cost Optimized (-1 and -2 devices)
    3. 6.3 Always On: PL Performance Optimized (-3 Devices)
    4. 6.4 Full Power Domain (All speed grades)
  8. 7Conclusion

3 TPS65086x Variants

In total, there are four variants of the TPS65086x PMIC for the Zynq UltraScale+, as shown in Table 3-1.

Table 3-1 TPS65086x Variant Voltage Comparison
Programmability Buck 1 Buck 21 Buck 31 Buck 4 Buck 5 Buck 61 LDOA1 LDOA2 LDOA3
TPS6508640 Pre-programmed 3.3 V 0.85, 0.9 V 1.2 V 0.9 V 1.8 V 1.2, 1.35 V 2.5 V 1.5 V 1.2 V
TPS65086401 Pre-programmed 1.8 V 0.85 V 0.85 V 3.3 V 3.3 V 1.1, 1.2, 1.5 V 1.8 V 1.2 V 1.2 V
TPS6508641 Pre-programmed External Feedback 0.85 V 1.1, 1.2 V 3.3 V 1.2 V 1.8V 1.8 V 1.2V 1.2V
TPS650861 User programmable 0.41 - 3.575 V 1.35-3.3 V 0.7 - 1.5 V
  1. Multiple voltages may be available through pin strapping; if so, they are separated with a comma.

The first three variants in the table are pre-programmed, varying in their set voltages and sequencing to match the different Xilinx ZU+ MPSoC specifications. The different MPSoCs each variant supports are outlined in the next section. The fourth, the TPS650861 (also denoted TPS65086100), is the user-programmable DIY version, and will be discussed in greater detail in Section 5. All four variants share the same current capabilities, which are shown in Table 3-2.

Table 3-2 TPS65086x Current Specifications
Buck 1 Buck 2 Buck 3 Buck 4 Buck 5 Buck 6 LDOA1 LDOA2 LDOA3
Scalable Scalable 3.0 A 3.0 A 3.0 A Scalable 0.2 A 0.6 A 0.6 A

For more information, please see the TPS650864 and TPS650861 data sheets.