9.5 Power-Management Subsystem
The CC3220MODx and CC3220MODAx power-management subsystems contain DC/DC converters to
accommodate the differing voltage or current requirements of the system.
The CC3220MODx and CC3220MODAx are fully integrated module-based WLAN radio solution used on
an embedded system with a wide-voltage supply range. The internal power management, including DC/DC
converters and LDOs, generates all of the voltages required for the module to operate from a wide variety of
input sources. For maximum flexibility, the module can operate in the modes described in the following sections.
9.5.1 VBAT Wide-Voltage Connection
In the wide-voltage battery connection, the module can be directly connected to two AA alkaline batteries. All
other voltages required to operate the module are generated internally by the DC/DC converters. This scheme is
the most common mode for the module because it supports wide-voltage operation from 2.3 to 3.6 V.
9.6 Low-Power Operating Mode
From a power-management perspective, the CC3220MODx and CC3220MODAx module comprise the following
two independent subsystems:
• Arm
®
Cortex
®
-M4 application processor subsystem
• Networking subsystem
Each subsystem operates in one of several power states.
The Arm
®
Cortex
®
-M4 application processor runs the user application loaded from an external serial Flash, or
internal Flash (in CC3220MODSF). The networking subsystem runs preprogrammed TCP/IP and Wi-Fi data link
layer functions.
SWRS206E – MARCH 2017 – REVISED MAY 2021
Copyright © 2021 Texas Instruments Incorporated
53
Product Folder Links: