MEDIATEK Genio 350 - System Power Paths

Genio 350 EVK
Genio 350 Evaluation Kit Hardware User Guide
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3.2 System Power Paths
There are two power supply paths for the system. One is through a buck converter (Richtek RT6276A), which
convert 12V (DC Jack) to 4.2V (VSYS). This path supports those applications without Li-Polymer batteries.
The other is through a battery charger IC (Richtek RT9466). This path supports those applications with Li-
Polymer batteries.
Figure 3-1 System Power Path
These two paths can be selected by J2322 and J2323. We provide two jumpers, 2 Ampere current rating for
each. Usually, any one of them can meet the requirement for most cases.
Current Rating System Power from Buck
System Power from
Charger
2 Ampere
Or Or
CN1403
IDJ-D47B2
IDJ-D47B2
1
3
2
4 5
6
D_GNDD_GND
12V±5%
Buck
Charger
RT9466
RT6276A
J2322 or J2323
ME_SIP-3P
1
1
2
2
3
3
VSYS
System Power
BT1
BATTERY
D_GND