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26. AC Adapter and Input Power Switch/Jack
The ML501 board ships with a 15W (5V @ 3A) AC adapter. The power connector is a
2.1 mm x 5.5 mm barrel type plug (center positive). For applications requiring additional
power, such as the use of expansion cards drawing significant power, a larger AC adapter
might be required. If a different AC adapter is used, its load regulation should be less than
10% or better than ±10%. The power switch turns the board on and off by controlling the
5V supply to the board
27. Power Indicator LED
The PWR Good LED lights when the 5V supply is applied.
28. INIT LED
The INIT LED lights upon power-up to indicate that the FPGA has successfully powered
up and completed its internal power-on process.
29. DONE LED
The DONE LED indicates the status of the DONE pin on the FPGA. It should be lighted
when the FPGA is successfully configured.
30. Program Switch
This switch grounds the FPGA's Prog pin when pressed. This action clears the FPGA.
ML501 Evaluation Platform
UG226 (v1.3) November 10, 2008
PT Host 240W
10A Switching Regulator
PT Host 230W
6A Switching Regulator
5V Brick
3A
PT Host 230W
6A Switching Regulator
Figure 1-4: Power Supply Diagram
www.xilinx.com
Detailed Description
5V
To USB and PS/2
1.0V
To FPGA Core
2.5V
TPS74401
3.3V
3A LDO
To V
CCAUX
2.5V
TPS74401
3A LDO
To FPGA I/O
To FPGA I/O
1.8V
To PROM
To DDR2 SO-DIMM
0.9V
TPS51100
3A LDO
To V
TTVREF
0.9V
TPS51100
3A LDO
To V
TT
UG226_04_080906
31
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