NXP Semiconductors QorIQ LS1028A Reference Manual page 18

Power supplies
2.2.1 Primary power supply
The LS1028ARDB is powered up through an external 12 V DC power adapter. The
specifications of the DC adapter are as follows:
• Input: 100 - 240 VAC, 50 - 60 Hz
• Output: 12 V, 0 - 5 A DC power supply adapter (160 W) - Standard
• DC Jack (2 pin, 2.5 mm x 5.5 mm x 11 mm)
2.2.2 Secondary power supplies
The following table lists different power supply components used to generate various
LS1028ARDB power supplies.
Part Manufacturing
identifi part number
er
U1 LT8609SEV Linear
Technology
U2 LTC7151S Linear
Technology
U3 LTC7151S Linear
Technology
U4 MC34716EP NXP
Semiconductors
QorIQ LS1028A Reference Design Board Reference Manual, Rev. A, 02/2018
18
Table 2-1. Secondary power supplies
Part Power
manufacturer supply
5V0
VDD
3V3
1V2
VTT_0V6
MVREF
Table continues on the next page...
Confidential Proprietary
Specifications
5 V at 2 A Supplies power to the board components:
• USB 1 and USB 2 connectors
• CAN transceivers
• Mikro-click modules
1
1.0 V / 0.9 V at 20 A Supplies power to the LS1028A core
supplies.
NOTE: Filtered VDD also powers USB
3.3 V at 15 A Supplies power to board components:
CPLD IO and VDD, Display Port, SGMII
PHY, M.2 connectors, SD card, eMMC
memory, I2C EEPROMs, current monitor
(INA220), Temperature monitor
(SA56004ED), CAN transceivers,
mikroBUS connectors, misc components
(buffers and translators).
NOTE: Filtered 3V3 also powers USB
1.2 V at 4 A DDR4 DRAM memories
LS1028A DRAM controller core and I/O
0.6 V at 3 A Address and control bus termination supply
0.6 V at 3 A Reference voltage for DDR4 DRAM
memories
Description
(USB_SDVDD, USB_SVDD),
Display Port (DP_SVDD), and
SerDes (SVDD) power supplies of
LS1028A.
(USB_HVDD of LS1028A).
NXP Semiconductors