MAX8902B
3V3_SB
LX2160A TA_BB_VDD
TA_BB_VDD
0.8V @ 0.5A
PS_TA_BB_SEL
from CPLD
PS_TA_BB_PG_B
MC34717EP/R2
PS_LVAUX_EN
PS_LVAUX_PG
1V2
1.20V @ 5A
from CPLD
5V0 VIN[1:2]
IN112525 RT1_VDD*
AQR107_1 P0_VA12*
AQR107_2 P0_VA12*
0V9
0.9V @ 5A
CS4223 VDD
CS4223 AVDD
MC34717EP/R2
PS_2VX_EN
PS_2VX_PG
2V5
2.50V @ 5A
from CPLD
5V0 VIN[1:2]
MAX14591 VDD
MX25V4006 VDD
2V1
2.10V @ 5A
AQR107_1 VA21_*
AQR107_2 VA21_*
MC34717EP/R2
3V3_SB
3.30V @ 1.5A
5V0_SB VIN[1:2]
EPM2210 IO
PCF2129 VBAT
LTC3882 I2C_IO
MAX8902 TA_BB
1V8_SB
1.80V @ 1.5A
EPM2210 IO
EPM2210 VDD
Figure 2-3. Power supplies - Part 3
Note that several power supplies have onboard low-pass filters, to prevent board
switching noise from coupling into sensitive analog supplies. The figure below shows the
filters used.
2.2uF
2.2uF
2.2uF=NFM18PC225B1A3
2.2uF=GRM155R60J225KE95
LPF
LPF
47uF
3nF
4.7uF
0.33OHm
LPF
10uF 1uF
5.1OHm
0.22uF
Figure 2-4. Passive low pass filters
2.1.1 Primary power supply
The primary power supply for the LX2160ARDB is an external 300 W ATX12V/
EPS12V power supply. The following tables show its main features.
Table 2-1. Primary power supply
Power supply Description
External ATX 12 V power
supply
Vin 90 - 264 Vac
Fin frequency 50 - 60 Hz
Table continues on the next page...
Power supplies
QorIQ LX2160A Reference Design Board Reference Manual, Rev. 0, 09/2018
20 NXP Semiconductors
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