ML365 Virtex-II Pro QDR II SRAM Mem. Board
www.xilinx.com
23
UG066 (v1.0) June 29, 2004
1-800-255-7778
Power
R
Power
Power Distribution
The ML365 board uses a 5V +/- 10% input voltage source to generate all the on-board
voltages (1.5V, 1.8V, 2.5V, and 3.3V).
Input Voltage
The input voltage is specified at 5 V @ 6.5 A. The recommended power supply is a CUI Inc.
DTS050650UTC-PSP-SZ. The jack used is a 2 mm. barrel jack. The slide switch turns the
power on or off. Four regulators on the board provide different voltages required by
various components on the board.
3.3 V Generation
The Texas Instruments PT5501N voltage regulator generates the 3.3 V @ 3 A power. This
power regulator is packaged in a 5-pin, thermally-efficient copper case that is solderable,
and provides the auxiliary supply for some of the FPGA I/Os (V
CCO
).
2.5 V Generation
The Texas Instruments PT5502N voltage regulator generates the 2.5 V @ 3 A power. This
power regulator is packaged in a 5-pin, thermally-efficient copper case that is solderable. It
supplies the clock oscillators, System Ace device, LCD Display unit, and for some of the
FPGA I/Os (V
CCAUX
).
1.8 V Generation
The Texas Instruments TSP54810 voltage regulator generates the 1.8 V @ 8 A power. This
power regulator has a thermally-enhanced 28-pin TSSOP package, and supplies the
memory devices.
1.5 V Generation
The Texas Instruments PT5505N voltage regulator generates the 1.5 V @ 3 A power. This
power regulator is packaged in a 5-pin, thermally-efficient copper case that is solderable,
and provides the core voltage to the FPGA (V
CCINT
).
Product Not Recommended for New Designs