Altera 100G Development Kit, Stratix IV GT Edition - Manual (Page 74)

2–66 Chapter 2: Board Components
Power
100G Development Kit, Stratix IV GT Edition Reference Manual September 2010 Altera Corporation
Figure 2–12 shows the power distribution system on the development board.
Figure 2–12. Power Distribution System
3.3V CFP
LT3026
Linear 1.5 V
LT3026
Linear
VCCD_PLL
S4 VCCD
0.95 V
12V
Fan
12 V
MIC65902
Linear
3.3 V
S4 VCCIO, DDR3, QDRII
S4 VCCIO, VCCPD,
VCC_CLKIN, VCCPGM
1.5 V
2.5 V
14 V - 20 V
DC INPUT
3.3V for Si5338
3.3 V
LTM4601
Switcher
Power Mux
12V ATX Power
U26
U60
U23, &U24, U59
U43
Linear
2.5V_AUX
S4 VCCA AUX 2.5 V
U35
LT1761
Linear
5V_MAIN
U53, U54,
U64
LTM4600
Switcher
5.0 V
U5
U9
U10
LT3080
Linear
LT1374
Switcher
Current Sense
4.25 V
U6
LT3026
Linear
S4 VCCH GXB
1.4 V
U43
LT3026
Linear S4 VCCL GXB
1.2 V
S4 VCCHIP
0.95 V
U42
LT3026
Linear S4 VCCT GXB
1.2 V
U45
LT3026
Linear
U27
TPS51100DGQ
V
TT
/V
REF
Regulator
0.75 V
Ethernet
1.1 V
U68
2x LT3080
Linear
Regulator
U73, U74
LT3026
Linear
1.2 V
U77
3.3V_MAX
Temperature Sense
LT3026
Linear
2.5V_MAX
MAX II 2.5V VCCIO
2.5 V
U68
U33
5V_OPTIC
MIC49500
Linear 3.3_QSFP_SFP
U41
3.3 V
LT3026
R129
R104
R91 2.5V_VCCA_PLL
S4 VCCA PLL
4.25V_MONITOR
VCCA_GXB
R150
R14
R85
R111
R73
R103
R115
R15
LTM4600
Switcher
2.5VIO_PD_CLK_PGM
1.5V_VCCPT
VCCH_GXB
VCCHIP_GXB
VCCL_GXB
VCCT_GXB
1.5V
1.1V
VCCR GXB
VTT/VREF
LTM8023
Switcher
LTM4600
Switcher
12 V
3.3V_PLL
S4 VCCA GXB
0.95 V VCC
R21
S4 VCC
2x LTM4627
Switching
Regulator
U11, U12
S4 VCCPT
LT3026
Linear
QDRII VDD
1.8 V
U58
1.8V
LT3026
Linear
Translator Power for CFP
1.2 V
U86
1.2V
LT3026
Linear
1.2 V
U25
1.2V VSC
LT3026
Linear
1.8 V
U40
1.8V VSC
2x LTM4601
Switching
Regulator
U7, U8
U69
R206
S4 VCCR GXB
DDR3, QDRII
3.3 V
5.0 V
3.3 V