Power Supply Calculation
79
SPRUIC7 – December 2016
Copyright © 2016, Texas Instruments Incorporated
CSK Carrier Card Power Requirements
9.2
Power Supply Calculation
provides the power supply calculation information.
(1)
All current ratings are in mA.
Table 9-1. Power Supply Calculation
Input Supply (V)
5
PMIC3V3
VCC_3V3
Regulatory Efficiency
0.9
0.86
Input Voltage
Board-to-Board Connect
3.3
3.3
5
5
5
Output Voltage
1.8
2.5
1.1
3.3
3.3
Regulator Name
TPS6216DSGT
TPS7A8101
TPS7A8101
TPS62142RGTT
(U5)
TPS62142RGTT
(U8)
5-V DC IN
_
Active
Active
Active
Active
Active
Active
Description
Part Number
Ethernet PHY external
regulator
TPS7A8101 (2.5 V)
141
108.2093023
TPS7A8101 (1.1 V)
125
95.93023256
Audio codec
TLV320AIC3104
2.5
170
130.4651163
Camera module
LI-CAM-AR0331-324-1.8
800
300
–
Ethernet PHY
DP83867IRPAPT
141
125
22
16.88372093
Expansion connector
(CSI camera)
0
Micro SD card
80
61.39534884
LED × 5
10
7.674418605
24.576-MHz oscillator
15
11.51162791
Current Consumption
(1)
0
863
1232.069767
Power Consumption (mW)
0
2847.9
6160.348837
_
5-V DC IN
Active
TMDSCSK388
2210.73
Current Consumption on 5-V power input
(1)
1232.069767
TMDSCSK8127
2660.863
Power Consumption on 5-V power input (mW)
6160.348837
TMDSCSK369
1052.032
USB Bus-Powered Devices
3.3
5
TLV1117-
33CDCY
5-V USB
USB to JTAG or UART
FT2232HL
130
130
EEPROM
AT93C46DY6-YH-T
2
2