ZC706 Evaluation Board User Guide www.xilinx.com 79
UG954 (v1.5) September 10, 2015
Feature Descriptions
VADJ Voltage Control
The V
ADJ
rail is set to 2.5V. When the ZC706 evaluation board is powered on, the state of the
FMC_VADJ_ON_B signal wired to header J18 is sampled by the TI UCD90120A controller
U48. If a jumper is installed on J18 signal FMC_VADJ_ON_B is held Low, and the TI controller
U48 energizes the V
ADJ
rail at power on.
Table 1-36: Onboard Power System Devices
Device Type
Reference
Designator
Description
Power Rail
Net Name
Power Rail
Voltage
Schematic
Page
UCD90120A U48 PMBus Controller, PMBus Addr = 101 49
LMZ31520RLG
(1)(6)
U42 16A 0.6 - 3.6V Adj. Switching Regulator VCCINT
(2)
1.00V 50
LMZ31710RVQ
(7)
U98 10A 0.6V - 5.5V Adj. Switching Regulator VCCAUX
(3)
1.80V 51
LMZ31506RUQ U85 6A 0.6V - 5.5V Adj. Switching Regulator VCC1V5_PL 1.50V 52
LMZ31506RUQ U86 6A 0.6V - 5.5V Adj. Switching Regulator VADJ_FPGA
(4)
2.50V 53
LMZ31710RVQ
(7)
U15 10A 0.6V - 5.5V Adj. Switching Regulator VCC3V3_FPGA
(5)
3.30V 54
TPS54291PWP
(Dual Output)
U104
2.5A 0.8V - 10V Adj. Switching Regulator VCCPINT 1.00V 55
2.5A 0.8V - 10V Adj. Switching Regulator VCC1V5_PS 1.50V 55
TPS54291PWP
(Dual Output)
U105
2.5A 0.8V - 10V Adj. Switching Regulator VCCP1V8 1.80V 55
2.5A 0.8V - 10V Adj. Switching Regulator VCC3V3_PS 3.30V 55
TPS51200DR U27 3A Push/Pull Tracking Regulator VTTDDR_PS 0.75V 56
TPS51200DR U28 3A Push/Pull Tracking Regulator VTTDDR_SODIMM 0.75V 56
TPS74901RGW U92 3A 0.8V - 3.6V Adj. Linear Regulator VCCAUX_IO 2.00V 57
TPS74901RGW U93 3A 0.8V - 3.6V Adj. Linear Regulator MGTAVCC 1.00V 57
TPS74901RGW U94 3A 0.8V - 3.6V Adj. Linear Regulator MGTAVTT 1.20V 57
TPS74901RGW U95 3A 0.8V - 3.6V Adj. Linear Regulator MGTVCCAUX 1.80V 57
TL1963A U19 1.5A 1.21V - 3.3V Adj. Linear Regulator VCC2V5 2.50V 57
TPS79433 U20 0.25A 3.3V Fixed Linear Regulator V33D_CTL1 3.30V 49
LMZ31704RVQ
(8)
U44 2A 0.6V - 5.5V Adj. Switching Regulator VCC5V0 5.00V 56
Notes:
1. VCCINT max. current is 16A
2. VCCBRAM 1.0V is also sourced from the Vccint rail
3. VCC1V8 1.80V is also sourced from the Vccaux rail
4. VADJ (1.80V/2.50V/3.30V) for the FMC connectors is also sourced from the Vadj_fpga rail
5. VCC3V3 3.30V is also sourced from the Vcc3v3_fpga rail
6. Paralleled dual LMZ22008TZ (U42/U43) 8A 0.8V - 6V Adj. Switching Regulators on ZC706 board versions prior to Rev. 2.0
7. LMZ22010TZ (U98 VCCAUX, U15 VCC3V3_FPGA) 10A 0.8 - 6V Adj. Switching Regulators on ZC706 board versions prior to Rev.
2.0
8. LMZ12002TZ U44 2A 0.8 - 6V Adj. Switching Regulator on ZC706 board versions prior to Rev. 2.0