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Chapter 1:
AC701 Evaluation Board Features
LMZ31700 Family Regulator Description
The LMZ31710 power module is a step-down DC-DC switching regulator capable of driving up to
10A load. The LMZ31710 can accept an input voltage rail between 4.5V and 17V, and deliver an
adjustable and highly accurate output voltage as low as 0.6V. The LMZ31710 requires two external
resistors and external capacitors to complete the design. The LMZ31710 is a reliable and robust
design with these protection features: thermal shutdown, programmable input under-voltage
lockout, output over-voltage protection, short-circuits protection, output current limit, and allows
start -up into a pre-biased output. The sync input allows synchronization over the 200 kHz to
1200 kHz switching frequency range and up to six modules can be connected in parallel for higher
load currents.
Table 1-31
Table 1-31: Controller U8 Power System Configuration
Sequencer
Page
39
40
#1 U8 PMBus
41
Addr 101, 4 Rails
42
43
68
Send Feedback
shows the AC701 board power system configuration for controller U8.
Schematic
Contents
Net Name
UCD90120A #1
Addr 101, Rail 1
VCCINT
Addr 101, Rail 2
VCCAUX
Addr 101, Rail 3
VCCBRAM
Addr 101, Rail 4
FPGA_1V5
www.xilinx.com
Regulator Type
Voltage
LMZ31710 (U49)
1.0V
LMZ31506 (U53)
1.8V
LMZ31503 (U54)
1.0V
LMZ31506 (U55)
1.5V
AC701 Evaluation Board
UG952 (v1.4) August 6, 2019
Current
10A
6A
3A
6A
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