The VCU128 evaluation board uses programmable power regulators from Intersil Corporation to supply the core and auxiliary voltages listed in the following table.
| Schematic Page | Rail Name | Regulator Type | U# | Vout (V) | Iout Range (A) | I2C Address | INA226 | |
|---|---|---|---|---|---|---|---|---|
| U# | I2C Address | |||||||
| Programmable Regulators and INA226 Map | ||||||||
| Programmable Regulators | ||||||||
| 54 | VCCINT (PWM[2:6]) | ISL68127IRAZ-TR5823 | U31 | 0.72 - 0.85 1 | 125 | 0X65 | U84 | 0x40 |
| 54 | VCCBRAM (PWM[0]) | ISL68127IRAZ-TR5823 | U31 | 0.72 - 0.85 1 | 30 | 0X65 | U86 | 0x41 |
| 56 | VCC1V8 (PH_A/B) | ISL91302BIKZ-TR5814 | U15 | 1.8 | 4 - 6 | 0x63 | U14 | 0X42 |
| 56 | VADJ (PH_C/D) | ISL91302BIKZ-TR5814 | U15 | 0, 0.3 -1.8 | 4.5 - 6 | 0x63 | NA | NA |
| 57 | VCCHBM | ISL68301IRAZ-TR5823 | U36 | 1.2 | 25 | 0x68 | U85 | 0x4C |
| 57 | MGTAVTT | ISL68301IRAZ-TR5823 | U24 | 1.2 | 20 | 0x69 | U21 | 0x47 |
| 58 | SYS_1V8 (PH_A) | ISL91211AIKZ-TR5818 | U22 | 1.8 | 0.75 - 1 | 0x60 | NA | NA |
| 58 | MGTVCCAUX (PH_B) | ISL91211AIKZ-TR5818 | U22 | 1.8 | 0.75 - 1 | 0x60 | U20 | 0x48 |
| 58 | MGTAVCC (PH_C/D) | ISL91211AIKZ-TR5818 | U22 | 0.9 | 8 - 10 | 0x60 | U16 | 0x46 |
| 59 | QDR4_VDDQ (PH_A/B) | ISL91302BIKZ-TR5815 | U44 | 1.2 | 5 - 6 | 0x62 | NA | NA |
| 59 | UTIL_1V30 (PH_C/D) | ISL91302BIKZ-TR5815 | U44 | 1.3 | 4.5 - 6 | 0x62 | NA | NA |
| 60 | RLD3_VDDQ (PH_A/B/D) | ISL91302BIKZ-TR5816 | U67 | 1.2 | 7 - 10 | 0x64 | NA | NA |
| 60 | DDR4_VDDQ (PH_C) | ISL91302BIKZ-TR5816 | U67 | 1.2 | 2.5 - 3 | 0x64 | NA | NA |
| 61 | UTIL_1V35 (PH_A/B/D) | ISL91302BIKZ-TR5817 | U68 | 1.35 | 6.5 - 10 | 0x61 | NA | NA |
| 61 | SYS_1V0 (PH_C) | ISL91302BIKZ-TR5817 | U68 | 1 | 1.75 - 2 | 0x61 | NA | NA |
| 62 | UTIL_3V3 | ISL68301IRAZ-TR5826 | U3 | 3.3 | 30 | 0x6A | NA | NA |
| 62 | UTIL_5V0 | ISL68301IRAZ-TR5825 | U12 | 5 | 20 | 0x6B | NA | NA |
| Non-I2C Regulators | ||||||||
| 63 | VCCAUX_HBM | SL80019FRZ-T7A | U29 | 2.5 | 1.5 | NA | U79 | 0x4D |
| 65 | VCC_3V3 | ISL85415FRZ-T7A | U25 | 3.3 | 20 | NA | NA | NA |
| 33 | DDR4_VTERM_0V6 | TPS51200DR | U71 | 0.6 | 3 | NA | NA | NA |
| 33 | RLD3_VTERM_0V6 | TPS51200DR | U92 | 0.6 | 3 | NA | NA | NA |
|
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Documentation describing the programming of the Intersil power controllers is available on the Intersil website (see References). The PCB layout and power system design meet the recommended criteria described in the UltraScale Architecture PCB Design User Guide (UG583).