AMD XILINX VPK180 - Page 69

Table 21: Power System – Non-PMBus Regulators
Rail Name Regulator Type Ref. Des. Vout (V) Iout (A)
VCC12_SW SW13 12 Up to 50A
UTIL_5V0 IR3889 U191 5 6
SYS_VCC0V85 TPS62480 U143 0.85 5
SYS_MGTAVCC TPS62097RWKR U146 0.9 1
SYS_VCC1V1 TPS7A8300ARGRR U145 1.1 1
SYS_VCC1V2 TPS62097RWKR U147 1.2 2
SYS_VCC1V8 TPS62097RWKR U144 1.8 1
8A34001_VCC_GPIO_DC LP38798SD-ADJ/NOPB U223 3.3 0.8
8A34001_VDDA LP38798SD-ADJ/NOPB U225 3.3 0.8
8A34001_VDDO_Q1_10_7 LP38798SD-ADJ/NOPB U226 3.3 0.8
8A34001_VDD_CLK0 LP38798SD-ADJ/NOPB U227 3.3 0.8
8A34001_VDDO_Q0_9_6 LP38798SD-ADJ/NOPB U228 3.3 0.8
8A34001_VDD_CLK1 LP38798SD-ADJ/NOPB U229 3.3 0.8
8A34001_VDDO_Q4_11 LP38798SD-ADJ/NOPB U230 3.3 0.8
8A34001_VDDO_Q8_3_5 LP38798SD-ADJ/NOPB U236 3.3 0.8
8A34001_OCXO_TCXO_VDD LP38798SD-ADJ/NOPB U243 3.3 0.8
8A34001_VDD_FOD LP38798SD-ADJ/NOPB U231 1.8 0.8
8A34001_VDDD LP38798SD-ADJ/NOPB U232 1.8 0.8
8A34001_VDDO_Q2 LP38798SD-ADJ/NOPB U232 1.5 0.8
Note: VCC12_SW is disabled when using ATX 12V (6+2) input. Refer to the descripon in the Power
On/O Slide Switch introducon.
More informaon about the power system regulator components can be found at the Inneon
Integrated Circuits website.
Monitoring Voltage and Current
Nineteen rails have a TI INA226 PMBus power monitor circuit with connecons to the rail series
current sense resistor. This arrangement permits the INA226 to report the sensed parameters
separately on the PMBus. The rails equipped with the INA226 power monitors are shown in the
power system table in Board Power System. As described in PMC MIO[46:47] I2C0 Bus, the
I2C0 bus provides access to the PMBus power controllers and the INA226 power monitors via
the U33 TCA9548A bus switch. All PMBus controlled Inneon regulators are ed to the
PMBUS_SDA/SCL PMBus, while the INA226 power monitors are split across
PMBUS1_INA226_SDA/SCL and PMBUS2_INA226_SDA/SCL.
Chapter 3: Board Component Descriptions
UG1582 (v1.0) February 21, 2023 www.xilinx.com
VPK180 Board User Guide 69
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