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Description
1 LS1012A
2 RTL8211FS(I) SGMII
3 SGTL5000
4 DDR3L (Worst case current IDD4R)
5 QSPI memory
6 K22 MCU
7 Misc (5 SSO @13mA)
Total Power
Power from 5V with efficiency of
Current
SL NO
Power (W)/QTY 0.9V
0.42
0.00867
0.297
0.045
0.0627
0.117
80%
2.37037
2.9629625
0.5925925
Watt
A
1
0.84
0.00867
0.297
0.045
0.0627
0.117
1
1
1
1
1
1
2
1.35V 1.8V 3.3V
5V
QTY
Total Power
Figure 2-2. Power estimation
An USB 2.0 host port can provide power upto 500 mA at 5 V and an USB 3.0 compliant
port can provide a maximum of 900 mA at 5 V power. Based on the type of application
and USB host port, you need to use an A-type to micro-B type Y cable to connect the two
USB host ports with the debug micro-AB port on the FRDM-LS1012A. This will double
the current capacity from host and provide required power to the FRDM-LS1012A.
NOTE
The Power estimation list does not show the power taken by the
external devices, such as USB 3.0 device, Ardiuno cards.
2.2.2 FRDM-LS1012A power supply delivery system
The following table lists the different power supply components used to generate the
various FRDM-LS1012A power supply rails.
Table 2-1. FRDM-LS1012A power supply devices
Sourc
e
volta
ge
rail
Output
voltage rail
Reference
designator
Vendor
Device
Description
P5V_S
DA
VCC_5V
J11
USB2.0 MICRO-AB 5 V at 1 A power supply for onboard DC regulator
VCC_
5V
VCC_3V3
U7
NXP
MC34713EP
3.3 V at 0.8 A power supply for:
• secondary regulator VR5100,
• onboard SGMII PHYs,
• and LS1012A supplies: EVDD and
USB_HVDD
VCC_
3V3
VCC_0V9
VCC_1V8
VCC_1V35
U8
NXP
MC34VR5100A1EP Power supply for:
• LS1012A power supplies
Chapter 2 LS1012AFRDM Functional Description
QorIQ FRDM-LS1012A Board Reference Manual, Rev. 3, 12/2016
NXP Semiconductors
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