Datasheet

Table 6. FRWY-LS1046A power supply devices (continued)
Reference
designator
Device Power supply voltage Description
U560 LT8642SEV (Linear
Technology)
3V3 (3.3 V at 10 A)
• Supply for processor DVDD and EVDD
• Filtered 3V3 power for USB (USB_HVDD)
power supply of the LS1046A processor
• Supply for the following board components:
— Si5332FD10253-GM2 clock generator
— M.2 Key-E slots
— Micro-SDHC connector
— RTC
— I2C EEPROM
— Current monitor (INA220A)
— Temperature sensor (SA56004ED)
— UART and SPI expansion headers
— MikroBUS socket connector J56
— CP2102N UART-USB bridge
— Misc. components (buffers and translators)
• Supply for PC33PF8100EAES PMIC
U561
PC33PF8100EAES
(NXP Semiconductors)
1
Multi-output DC-DC regulator with six switched outputs, one LDO output (VDD
enable), and one reset control output to the LS1046A processor. Six switched
outputs are given below:
SW1LX: 1V0_F104 (1 V
at 1 A)
Supply for the QSGMII PHY VDD and VDDA
SW2LX: OVDD (1.8 V at
2 A)
• Supply for processor OVDD, LVDD, and
TH_VDD
• Filtered OVDD powers for processor
AVDD_CGA[1:2], AVDD_PLAT, and AVDD_D1
• Supply for GPIO3_24 controlled processor
power TA_PROG_SFP (for fuse programming)
• Jumper-enabled OVDD also powers
PROG_MTR
• OVDD for board components:
— SLC NAND and QSPI memories
— Si5332FD10253-GM2 clock generator
VDDO5
— Misc. components (buffers and translators)
SW3LX: 1V35 (1.35 V at
400 mA)
Filtered 1.35 V is supplied to processor XVDD,
AVDD_SD[1:2]_PLL1, and AVDD_SD[1:2]_PLL2
Table continues on the next page...
Power supplies
Layerscape FRWY-LS1046A Board Reference Manual, Rev. 0, 26 April 2019
NXP Semiconductors
15