ZC706 Evaluation Board User Guide
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
U42
16A 0.6 - 3.6V Adj. Switching Regulator
VCCINT
1.00V
50
LMZ31710RVQ
U98
10A 0.6V - 5.5V Adj. Switching Regulator
VCCAUX
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
2.50V
53
LMZ31710RVQ
U15
10A 0.6V - 5.5V Adj. Switching Regulator
VCC3V3_FPGA
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
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