Table 6. Secondary power supplies (continued)
Part
identifier
Manufacturing
part number
Part
manufacturer
Power supply Specifications Description
U17 MC34717EP/R2 NXP
Semiconductors
SD_OVDD 1.8 V at 5 A ±3% accuracy Supplies power to the
LX2160A SerDes I/O
drivers
SD_SVDD 0.92 V at 5 A ±3%
accuracy
Supplies power to the
LX2160A SerDes cores
U20 MC34712EP NXP
Semiconductors
VTT1 0.6 V at 3 A Supplies power to the
DDR#1 UDIMM memory
termination power
U21 MC34712EP NXP
Semiconductors
VTT2 0.6 V at 3 A Supplies power to the
DDR#2 UDIMM memory
termination power
U24 LTC3026EMSE Linear
Technology
SD_AVDD 0.9 V at 1.5 A Supplies power to the
LX2160A SerDes PLLs.
Filtered SD_AVDD
power is supplied to
SerDes1, SerDes2 and
SerDes3 PLLs
(AVDD_SD[1:3]_PLLF
and
AVDD_SD[1:3]_PLLS).
NOTE
U22 LTC3026EMSE Linear
Technology
USB_SVDD 0.8 V at 1.5 A Supplies power to the
LX2160A USB PHY super
speed (SS) and high
speed (HS) power
supplies
U34 NX5P2924BUK NXP
Semiconductors
USB_HVDD_
SW
3.3 V at 1 A Supplies power to the 3.3
V USB PHY HS power
supply
Table continues on the next page...
NXP Semiconductors
LX2160ARDB Functional Description
QorIQ LX2160A Reference Design Board Reference Manual, Rev. 4, 07/2020
Reference Manual 15 / 116
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