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Chapter 3
– Hardware Description
Dynatem
CPU-111-10 - Intel Xeon Quad-Core 6U VPX SBC – User’s Manual
16
3.9
Board Power
There are 11 major supply rails on the CPU-111-10. A block diagram of the power supply architecture is shown
below. The VPX backplane provides +12V and +5V supplies. The majority of the on-board supply rails are
generated by Linear Technology LTM4616 16A MicroModules. A discrete DC-DC converter controlled by an
Intersil ISL6314 provides the CPU core supply. Two switching FET's control backend 3.3 and 5V power. -12V is
generated by an LTC3693 1A regulator and is only used by the dual PMC sites. Power monitoring and sequencing is
performed by a programmable Lattice ispPOWR1220A.
VPX
P0
LTM4616
LTM4616
LTM4616
LTM4616
LTM4616
LTM4616
½ LTM4616
½ LTM4616
ispPOWR
1220A
POWER
MONITOR
AND
SEQUENCER
ISL6314
FET SWITCH
FET SWITCH
LTC3693
V3_3_EP
V1_8
V1_5
V1_2
P_VTT
V1_05
V0_9
VCORE
V5_0
V3_3
V12_N
V12_P
V12_P
V5_0_EP
V1_8
V1_5
V1_2
P_VTT
V1_05
V0_9
VCORE
V3_3
V5_0_EP
V5_0
V12_P
V1_8_EN
V1_5_EN
V1_2_EN
V1_1_EN
V1_05_EN
V0_9_EN
VCORE_EN
V3_3_EP
V5_0_EN
V3_3_EN
VS1, VS2
VS3
Figure 10: Power Generation & Distribution
For input power requirements please refer to Appendix C.