Xilinx VCU1525 User Manual

VCU1525 Acceleration Platform User Guide 43
UG1268 (v1.0) November 13, 2017 www.xilinx.com
Chapter 3: Board Component Descriptions
The VCU1525 board uses power regulators from Linear Technology to supply the core and
auxiliary voltages. The V
CCINT
2-phase (of 6) regulator U41 is PMBus-compliant. The power
system regulators are listed in Table 3-9.
Documentation describing PMBus programming for the Linear Technology power controller
is available at the Linear Technology website [Ref 10]. The PCB layout and power system
design meet the recommended criteria described in the Linear Technology website.
Monitoring Voltage and Current
Voltage and current monitoring and control are available for the Linear Technology V
CCINT
power controller U41 via the Linear Technology LTpowerPlay software graphical user
interface and the DC1613A USB-to-PMbus dongle. The onboard Linear Technology U41
LTC3884 power controller listed in Table 3-7 is accessed through the 2x5 PMBus connector
J1 provided for use with the Linear Technology DC1613A USB-to-PMbus dongle. This cable
can be ordered from the Linear Technology website [Ref 10]. The associated Linear
Technology LTpowerPlay GUI can be downloaded from the Linear Technology website. See
Vccint Regulator Circuit for more details.
Table 3-9: Onboard Power System Devices
Rail Name
Power System Regulators Schematic
Page
Number
Ref. Des. Device Type Vout (V) Max. I (A)
VCCINT (Addr. 0x44) U41 LTC3884EUK 0.85 40 14
Non-PMBus Regulators
VCCINT (phases 3 & 4) U40 LTC3874EUFD 0.85 38.5 15
VCCINT (phases 5 & 6) U39 LTC3874EUFD 0.85 38.5 16
SYS_5V5 U18 LT8607 5.5 1 16
VCC0V85 U11 LTC3636 0.85 8 17
VCC1V8 U24 LTC3636EUF 1.8 3 17
MGTVCCAUX U24 Filtered branch of VCC1V8 power supply 17
VCC1V2_TOP (Mem.) U6 LTC7150EY 1.2 17.5 18
VCC1V2_BTM (Mem.) U20 LTC7150EY 1.2 17.5 19
MGTAVTT U25 LTC3636EUF 1.2 8 19
DIMM Regulators
VPP_TOP U7 LT8608 2.5 1.5 21
VPP_BTM U23 LT8608 2.5 1.5 21
DDR4_C0_VTT U53 TPS51200 0.6 3 21
DDR4_C1_VTT U49 TPS51200 0.6 3 21
DDR4_C2_VTT U32 TPS51200 0.6 3 21
DDR4_C3_VTT U30 TPS51200 0.6 3 21
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Xilinx VCU1525 Specifications

General

Brand	Xilinx
Model	VCU1525
Category	Microcontrollers
Language	English