Power Supply Calculation
42
SPRUIC7 – December 2016
Copyright © 2016, Texas Instruments Incorporated
TMDSCSK388 Power Requirements
5.2
Power Supply Calculation
provides the power supply calculations.
Table 5-1. Power Supply Calculations
Part
Number
Quantity
CVDD
CORE_CVDD
CVDD_ARM
PMIC VDD1
CVDD_HDVI
CP
PMIC VDD2
VDD_1V8
PMIC VIO
TPS51216
VCC_1V5
TPS71711DC
KR
TPS VHD
1V1
VCC_3V3
Carrier Card
DDR_VIT
0.75
PMIC_3V3
VCC_5V0
TMS320DM388
1
1125
365
0
53
402
150
139
382.6968984
DDR3
MT41K256M16T
W
4
520
272
MT29F4G16ABA
EAWP
1
30
TXS0108EPWR
1
.036
.036
.108
WL1837MOD
1
909.0909091
SN74AVC4T245
RGYR
3
300
300
SN74LVC1G11D
CKR
1
100
SN74CBTLV3257
RGYR
1
128
LED
1
_
Total (mA)
1125
365
0
353.036
922.036
1606.198909
272
382.6968984
320.6470588
Input Voltage
5
3.3
3.3
3.3
5
3.3
5
1.5
5
5
Efficiency
0.85
0.85
0.8
0.85
0.8
0.85
0.85
0.85
0.75
Quiescent current
(mA)
Output voltage
1.2
1.2
1.2
1.8
1.5
1.1
3.3
0.75
3.3
3.3
Current drawn
from input
317.6470588
156.1497326
0
226.5471658
345.7635
150
1247.166212
160
297.1528858
504
Current drawn
from VCC_5V0
2210.72965
6 mA