ATWINC1500_14 Datasheet, PDF (7/26 Pages) ATMEL Corporation – Single Chip IEEE 802.11 b/g/n Network Controller SOC

5. Power Management
5.1 Power Architecture
The Atmel WINC1500 device uses an innovative power architecture to eliminate the need for external regulators
and reduce the number of off-chip components. The architecture is shown in Figure 5-1.
The Power Management Unit (PMU) has a DC/DC Converter that converts VBATT to the 1.2V supply used by
the digital and RF/AMS blocks. The PA and eFuse are supplied by dedicated LDOs, and the VCO is supplied by
a separate LDO structure.
The power connections in Figure 5-1 provide a conceptual framework for understanding the WINC1500 power
architecture. Reference designs will be provided to demonstrate how to properly connect the supplies, including
proper isolation of the supplies used by the digital and RF/AMS blocks.
Figure 5-1. WINC1500 Power Architecture
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Atmel ATWILC1500A [PRELIMINARY DATASHEET]
7
Atmel-42353A-WINC1500-SmartConnect-Datasheet_092014