REF: BBONEBLK_SRM
BeagleBone Black System
Reference Manual
Rev A5.2
Page 43 of 108
6.1.9
Power Rails
Figure 25
shows the connections of each of the rails from the
TPS65217C
.
Figure 25.
Power Rails
6.1.9.1
VRTC Rail
The
VRTC
rail is a 1.8V rail that is the first rail to come up in the power sequencing. It
provides power to the RTC domain on the processor and the I/O rail of the
TPS65217C
.
It can deliver up to 250mA maximum.
6.1.9.2
VDD_3V3A Rail
The
VDD_3V3A
rail is supplied by the
TPS65217C
and provides the 3.3V for the
processor rails and can provide up to 400mA.
