Xilinx SP623 User Manual page 12

Chapter 1: SP623 Board Features and Operation
Table 1-1: Onboard Power System Devices
Reference
Device
Designator
Core voltage controller and regulators
UCD9240PFC U8
PTD08A020W U10
PTD08A020W U12
PTD08A020W U13
Auxiliary voltage controller and regulators
UCD9240PFC U19
PTD08A020W U23
PTD08A020W U22
5V auxiliary power
PTV12010WAD U15
Using External Power Sources
The maximum output current rating for each power regulator is listed in
design exceeds this value on any power rail, power for that rail must be supplied through
the external power jack using a supply capable of providing the required current.
Each power rail has a corresponding jack and jumper that is used to supply voltage to the
rail using an external power supply. The jack, jumper, and regulator for each power rail is
listed in
Disabling Onboard Power
Voltage regulators U10, U12, U13, U22, and U23 are disabled by installing a jumper across
pins 2–3 of header J14. Voltage regulator U15 is disabled by installing a jumper across pins
2–3 of header J19.
Default Jumper Positions
A list of shunts and shorting plugs and their required positions for normal board operation
is provided in
12
Description
PMBus compliant digital PWM system
controller (address = 52)
Adjustable switching regulator
20A, 0.6V to 3.6V
Adjustable switching regulator
20A, 0.6Vto 3.6V
Adjustable switching regulator
20A, 0.6V to 3.6V
PMBus compliant digital PWM system
controller (address = 53)
Adjustable switching regulator
20A, 0.6V to 3.6V
Adjustable switching regulator
20A, 0.6V to 3.6V
Adjustable switching regulator
8A, 1.2V to 5.5V
Table 1-1.
Caution!
The power regulation jumper must be removed before applying external power to the
power rail through its corresponding supply jack.
Appendix A, Default Jumper
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Power Rail Typical
Regulation
Net Name Voltage
VCCINT 1.2V
VCCAUX 2.5V
VCCO 2.5V
VCC2V5 2.5V
VCC3V3 3.3V
VCC5 5.0V
Positions.
SP623 Board User Guide
UG751 (v1.0) May 22, 2010
Power External
Supply
Jumper Jack
J102 J223
J104 J227
J105 J98
J31 J175
J30 J174
J33 J173
Table 1-1. If a