Power Block Diagram For External 5-V Power Source With Usb Connection - Texas Instruments LaunchPad MSP-EXP430F5529LP User Manual

Hardware
2.4.3 External 5-V Power Source With USB Connection
In certain situations, it is advantageous to have an external 5-V source and USB connected
simultaneously (see
channel UART, or to allow for programming through emulation. In this scenario, the 5V jumper in the
isolation block must be disconnected to allow for the two separate 5-V sources. If using external power
source for both 3.3 V and 5 V, consider recommendations for each.
Figure 20. Power Block Diagram for External 5-V Power Source With USB Connection
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MSP-EXP430F5529LP LaunchPad™ Development Kit User's Guide
Figure 20). The USB connection may be needed for direct USB communication, back-
USB Connector
eZ-FET lite 5V
5529 Target + BoosterPack 3.3V
5529 Target + BoosterPack 5V
Copyright © 2013–2014, Texas Instruments Incorporated
TPS62237
DC-DC Converter
5V in
3.3V out
Isolation
Jumper Block
* 5V Isolation
Block Jumper
Disconnected
MSP430F5529
Target Device
SLAU533B – September 2013 – Revised June 2014
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