Power Distribution Block Diagram - Texas Instruments DRA72 Series User Manual

Hardware
3.2 Power Architecture
Figure 5 shows the complete power distribution system of the EVM. The companion power management
IC (PMIC) for SoC is the TPS65917-Q1. A step-down 12-V to 3.3-V and 5-V converter is available to
provide a 3.3-V and 5-V DC input to the PMIC, as well as 3.3-V and 5-V power rails at the board level.
Refer to the PMIC data sheet for the power on/off sequence.
12V Power
.010
Source
.005
TPS43351-Q1
.010
3.3V
VBUCKA
.010
5.0V
VBUCKB
.010
.010
INA226
Pwr Bd I2C1
Pwr Bd I2C2
.010
An external power is required to power the EVM, but is not included as part of the EVM kit. The external
power supply requirements are:
• Power Jack: 2.5-mm ID, 5.5-mm OD
• Nom voltage: 12 VDC
• Max Current: 5000 mA
• Efficiency Level V
10
DRA72x EVM CPU Board User's Guide
TPS65917-Q1
(J6eco PMIC)
SMPS1
AVS
(3.5A max)
SMPS3 AVS
(3A max)
SMPS2 AVS
(3.5A max)
1.8V
SMPS4
.010
(1.5A max)
SMPS5
1.35V
(2A max)
LDO5(LN)
1.8V
(100mA max)
LDO3
1.8V
(200mA max)
LDO1
1.8/3.3V
.010
(300mA max)
LDOVRTC/ANA
required by PMIC
LDO2
1.8V
LDOVRTC
(300mA max)
(25mA max)
LDOVANA
(10mA max)
LDO4(USB)
3.3V
(200mA max)
GPIO4
TPS22965
2.30A @ 3.3V
(power switch)
TPS51200
Figure 5. Power Distribution Block Diagram
Copyright © 2016, Texas Instruments Incorporated
3.1A @1.15V
VDD_MPU
.010
VDD_DSP
2.3A @1.15V
VDD_GPU
.010
VDD_IVAHD
1.8A @1.03V
VDD_CORE
.010
0.01mA @1.03V
VDD_RTC
0.4A @ 1.8V
.010
VDD_1V8
0.02A @ 1.8V
VDDA_1V8 (PLLs)
TBD @ 1.8V
.010
VDDA_1V8 (PHYs)
TBD @ 1.8V
TBD @ 1.8V
.010
VDDA_RTC
TBD @ .68V
DDR_REF
TBD @ 1.8, 3.3V
VDDSHV8 (SDIO)
.010
0.05A@3.3V
VDDA_USB3V3
0.66A@1.35V
VDD_DDR
.010
.010
VDDSHV5 (RTC IO)
Dual Voltage Rails
.010
(Set to 3.3V)
x
0.30A @ 1.8V
1V8
0.51A @ 1.35V
EMIF1
.010
0.5A @ 0.68V
VTT
EMIF2
x
3V3
.010
x
3A @ 5V
5V0
.010
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x x
vdd_mpu
SMPS1
x x
vdd_dsp SMPS3
x x
vdd_gpu SMPS3
x x
vdd_iva SMPS3
x x
vdd
SMPS2
x x
vdd_rtc SMPS2
x
vdds_mlbp
x
vdds18v
x
vdds18v_ddr1
x
vdds18v_ddr2
x
vdda_per
x
vdda_ddr
x
vdda_debug
x
vdda_pllspare
x
vdda_gmac_core
x
vdda_gpu
x
vdda_dsp_iva
x
vdda_video
x
vdda_mpu_abe
x
vdda_osc
x
vdda_usb1
x
vdda_usb2
x
vdda_hdmi
x
vdda_pcie
x
vdda_pcie0
x
vdda_csi
x
vdda_sata
x
vdda_usb3
x x
vdda_rtc SMPS4
x
ddr1_vref0
x
x TPS51200
ddr2_vref0
x x
vddshv8 LDO1
x
vdda33v_usb1 x
x LDO4(USB)
vdda33v_usb2
x
vdds_ddr1 x
x SMPS5
vdds_ddr2
x
vddshv5
x
vddshv1
x
vddshv10
x
vddshv11
x
vddshv2
x
vddshv3
x
vddshv4
x
vddshv6
x
vddshv7
x
vddshv9
SPRUIB9 – December 2016
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