Board Power System

VEK280 Evaluation Board User Guide (UG1612)

Document ID
Release Date
1.1 English

[Figure 1, callout 21]

The VEK280 evaluation board uses power management ICs (PMIC) and power regulators from Infineon Integrated Circuits to supply the core and auxiliary voltages listed in the following tables. The detailed device connections for the feature described in this section are documented in the VEK280 board schematic.

Table 1. Power System - PMBus Regulators and INA226 Map
Rail Rail Name Nominal Voltage (V) Max Current (A) Device PMBUS Addr INA226 Addr
1 VCCINT 0.80 150 U152 L1, U154, U155, U157, U159, U277 0x46 0x40 BUS1
2 VCC_PMC 0.88 1 U160 A 0x47 0x42 BUS1
3 VCC_RAM 0.80 2 U160 C 0x47 0x43 BUS1
4 VCC_PSLP_CPM5 0.88 6 U175 C,D 0x4D 0x44 BUS1
5 VCC_PSFP 0.88 4 U167 C 0x4C 0x45 BUS1
6 VCC_SOC 0.80 25 U152 L2, U153 0x46 0x41 BUS1
7 VCCAUX 1.50 4 U167 D 0x4C 0x40 BUS1
8 VCCAUX_PMC 1.50 1 U167 B 0x4C 0x41 BUS2
9 VCCO_MIO 1.80 2 U279 D 0x48 0x45 BUS2
10 VCCO_502 1.80 1 U175 B 0x4D 0x47 BUS2
11 VCC1V1_LP4 1.10 6 U279 A, U292 0x48 0x49 BUS2
12 VCC1V5 1.50 2 U279 B 0x48 0x43 BUS2
13 VADJ_FMC 1.50 6 U282 0x4E 0x4A BUS2
14 LPDMGTYAVCC 0.92 4 U279 C 0x48 0x4B BUS2
15 LPDMGTYAVTT 1.20 6 U167 A, U316 0x4C 0x4C BUS2
16 LPDMGTYVCCAUX 1.50 0.5 U175 LDO 0x4D 0x4D BUS2
17 MGTAVCC 0.92 4 U160 D 0x47 0x42 BUS2
18 MGTAVTT 1.20 6 U295 0x49 0x46 BUS2
19 MGTVCCAUX 1.50 0.5 U160 LDO 0x47 0x48 BUS2
20 VCCO_HDIO_3V3 3.3 2 U175 A 0x4D 0x46 BUS1
21 UTIL_1V8 1.80 2 U354 0x4F N/A
22 UTIL_2V5 2.50 2 U160 B 0x47 N/A
23 UTIL_1V0 1.00 0.4 U167 LDO 0x4C N/A
Note: Bus short names are decoded as:
  • I2C Address – PMBUS_SDA/SCL

See PMC MIO[46:47] I2C0 Bus for I2C diagrams and more details.

The FMCP HSPC (J51) VADJ pins are wired to the programmable rail VADJ_FMC. The VADJ_FMC rail is programmed to 1.50V by default. The VADJ_FMC rail also powers the XCVE2802 FMCP interface banks 709 and 710 (see the table in I/O Voltage Rails). Documentation describing PMBus programming for the Infineon power controllers is available on the Infineon Integrated Circuits website. The PCB layout and power system design meet the recommended criteria described in the Versal Adaptive SoC PCB Design User Guide (UG863).

Table 2. Power System – Non-PMBus Regulators
Rail Name Regulator Type Ref. Des. Vout (V) Iout (A)
VCC12_SW SW13 12 Up to 50A
UTIL_3V3 IR3889 U190 3.3 12
UTIL_5V0 IR3889 U191 5 6
SYS_VCC0V85 TPS62480 U143 0.85 5
SYS_VCC1V1 TPS7A8300ARGRR U145 1.1 1
SYS_VCC1V2 TPS62097RWKR U147 1.2 2
SYS_VCC1V8 TPS62097RWKR U144 1.8 1
Note: VCC12_SW is disabled when using ATX 12V (6+2) input. Refer to the description in the Power On/Off Slide Switch introduction.

More information about the power system regulator components can be found at the Infineon Integrated Circuits website.