ACT88430QJ-T
Rev 1.0, 24-Oct-2018
FUNCTIONAL BLOCK DIAGRAM
VIN
Supply
ACT88430
VIN_B1
Supply
VIN
MODE
VIN
GPIO
IO Supply
VIO_IN
FB_B1
Buck1 and
Bypass
Controller
1µF
SW_B1
Vref
2x22µF
FB_B1
VIO_IN
VIO_IN
PWREN
PGND_B1
SCK
VIO_IN
VIO_IN
VIO_IN
SDA
IRQ
Digital
Core
VIN_B2
Supply
1µF
VIO_IN
VIO_IN
nRESET_AUX1
nRESET_AUX2
nRESET
FB_B2
Vref
Buck2
Controller
VIO_IN
SW_B2
FB_B2
22µF
VIO_IN
POK
VIO_IN
PGND_B2
VIN_B3
PG
Supply
1µF
VIO_IN
EXT_EN
EXT_PG
ENABLE
VIO_IN
Power _Good
FB_B3
Vref
Buck3
Controller
SW_B3
FB_B3
VIN_LDO23
Supply
22µF
Vref
PGND_B3
OUT_LDO3
1µF
VIN_B4
Supply
1µF
Vref
FB_B4
Vref
OUT_LDO2
Buck4
Controller
SW_B4
FB_B4
1µF
22µF
VIN_LDO1
PGND_B4
Supply
Vref
OUT_LDO1
1µF
AGND
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3
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