Board Power System

[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
BUS1 - PMBUS1_INA226_SDA/SCL
BUS2 - PMBUS2_INA226_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_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

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.