Figure 3-1. Type-C CC Configuration
Table 3-1. Current Sourcing Capability and State of USB Type-C Cable
OUT1
OUT2
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H
H
Default current in unattached state
H
L
Default current in attached state
L
H
Medium current (1.5A) in attached state
L
L
High current (3.0A) in attached state
The AM243x LaunchPad includes a power solution based on discrete regulators for each of the power rails.
During the initial stage of the power supply, 5 V supplied by the type-C USB connector is used to generate all of
the necessary voltages required by the LaunchPad.
Figure 3-2. USB Type-C Power Input
Discrete DC-DC buck regulators and LDOs are used to generate the supplies required for the AM243x system
on a chip (SoC) and other peripherals
Two DC-DC buck regulators (TPS62822) are used to generate the 3.3 V main supply and VDD_CORE_0V85
from the 5 V input supply.
Board Setup
8
AM243x LaunchPad™ Development Kit User's Guide
SPRUJ12B – AUGUST 2021 – REVISED OCTOBER 2022
Copyright © 2022 Texas Instruments Incorporated
