Vcu1525 Board Power System - Xilinx VCU1525 User Manual

VCU1525 Board Power System

The VCU1525 board hosts a Linear Technology based power system. Essential input power
rails are sourced from the 16-lane PCIe connector CN1 through pins A2, A3, B1, and B2
12V_IN (12V), A9, A10, and B8 3V3_PEX_IN (3.3V) and B10 3V3AUX (3.3V).
The V voltage regulator has a PMBus interface.
CCINT
system block diagram.
X-Ref Target - Figure 3-18
12VPCIe
PCIe LTC3884 1/2
12V 2A
12V
12VAux
5.5 Amps Max
LTC3884 2/2
2A
12VAUX
LTC3874 1/2
12V 2A
12.5 Amps Max
LTC3874 2/2
2A
LTC3874 1/2
2A
LTC3874 2/2
2A
FET SW
FET SW
3.5A
EFF1=97%
LTC4412 Ideal Switch
3V3PCIe
PCIe
VCC_3V3
3.3V
3V3
QSFP0/1
2A
3 Amps
Max
Misc. circuits
1A
VCU1525 Acceleration Platform User Guide
UG1268 (v1.0) November 13, 2017
0.85V
EFF1=92%
0.85V
150A
EFF1=92%
0.85V
EFF1=92%
0.85V
0.9A LTC3636
EFF1=92%
0.85V
EFF1=92%
LTC3636
EFF1=92%
0.6A
0.85V
EFF1=92%
EFF1=92%
12VSW
LTC7150
12V
EFF1=92%
2A
LTC7150
12V
EFF1=92%
LTC3636 1/2
1A
EFF1=92%
LTC3636 2/2
EFF1=90%
FAN
1.5A
Figure 3-18: VCU1525 Power System Block Diagram
www.xilinx.com
Chapter 3: Board Component Descriptions
Figure 3-18
0.4A
VCC_INT
0.3A
12VPCIe
0.3A
1.2V MGTAVTT
8A
VCCBRAM/VCCINTIO
0.85V
8A
DDR4_VCC1V2_TOP_DIMMS
1.2V
MTA36ADS4G72PZ – 32GB
20A
4.5A peak per DIMM
DDR4_VCC1V2_BTM_DIMMS
1.2V
MTA36ADS4G72PZ – 32GB
20A
MGTVCCAUX/VCCAUX/VCCAUXIO
1.8V
4A
MGTAVCC
0.9V
4A
PCIe 3.3AUX VCC_3V3A
3.3V
0.5A
shows the VCU1525 power
LT8607 VCCINT_SYS_5V5
5.5V
0.75A
EFF1=95%
DDR4_VPP0
LT8608
2.5V
0.75A
EFF1=90%
DDR4_VPP1
0.75A
DDR4_VPP2
2.5V
LT8608
0.75A
EFF1=90% DDR4_VPP3
0.75A
TPS51200 DDR4_VTT0
0.6V
0.75A
TPS51200 DDR4_VTT1
0.6V
0.75A
TPS51200 DDR4_VTT2
0.6V
0.75A
TPS51200 DDR4_VTT3
0.6V
0.75A
X19966-110117
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