Xilinx ZCU1285 User Manual page 13

Onboard Power System Devices
The ZCU1285 board uses power regulators and PMBus-compliant pulse width modulation
(PWM) digital controllers from Maxim Integrated to supply the RFSoC logic and utility voltages
listed in the following table. The board can also be configured to use an external bench power
supply for each voltage. See
The output voltages of the controllers in the table can be reprogrammed using the
Digital PowerTool.
Note: The MAX20751EKX device has limited nonvolatile memory reprogramming saves (four counts).
CAUTION! Be extremely careful when attempting to modify any of the onboard regulators, because an
incorrectly programmed regulator can damage onboard components.
Table 2: Onboard Power System Devices
Device Part Number
RFSoC Logic
Maxim MAX20751EKX
Maxim MAX15303
Maxim MAX15303
Maxim MAX15303
Maxim MAX15303
Processor
Maxim MAX15301
Maxim MAX15303
Maxim MAX15303
Maxim MAX15303
Maxim MAX15303
RF Data Converters
Maxim MAX20751EKX
INA226
UG1348 (v1.0) July 16, 2019
ZCU1285 Board User Guide
Using External Power
Reference
Designator(s)
1 U23
U24
U47
U29
U31
U28
U48
U27
U11
U96
1
U89
U60
Chapter 1: ZCU1285 Board Features and Operation
Sources.
Description
Multiphase master with
PMBus interface controller
(60A three phases at 20A/
phase)
InTune digital point of load
(PoL) controller, 6A
InTune digital point of load
(PoL) controller, 6A
InTune digital point of load
(PoL) controller, 6A
InTune digital point of load
(PoL) controller, 6A
InTune digital point of load
(PoL) controller, 12A
InTune digital point of load
(PoL) controller, 3A
InTune digital point of load
(PoL) controller, 3A
InTune digital point of load
(PoL) controller, 6A
InTune digital point of load
(PoL) controller, 6A
Multiphase master with
PMBus interface controller
(40A two
phases at 20A/phase)
Current shunt and power
monitor with I2C interface
Send Feedback
Maxim InTune
Power Rail Net
Voltage
Name
VCCINT 0.85V
VCCAUX / VCCAUX_IO 1.8V
VCCBRAM / VCCINT_IO 0.85V
VCCO_HP 1.8V
VCCO_HD 1.8V
VCCPINT 0.85V
VCCPAUX 1.8V
VCC_PSPLL 1.2V
VCCO_DDR 1.5V
VCCO_MIO 1.8V
VCCINT_AMS 0.85V
ADC_AVCC 0.925V
www.xilinx.com
13