MB39C308 Datasheet, PDF (4/60 Pages) Fujitsu Component Limited. – 6ch DC/DC Converter IC for LPIA Platform VR

MB39C308
■ PIN DESCRIPTIONS
Block
CH1
CH2
CH3
CH4
Pin Name
FB1
PVDD1
CB1
LX1
OUT1H
OUT1L
PGND1
FB2
PVDD2
CB2
LX2
OUT2H
OUT2L
PGND2
FB3
PVDD3A
to
PVDD3I
CB3
LX3A
to
LX3I
PGND3A
to
PGND3I
FB4
PVDD4A
to
PVDD4G
CB4
LX4A
to
LX4H
PGND4A
to
PGND4H
I/O
Description
I CH1 Error amplifier input pin, being connected to output of CH1.
⎯ Power supply pin of the CH1 output block.
O Internal power supply pin of the CH1 gate driver block.
⎯ CH1 inductor connection pin.
O CH1 High-side N-ch FET drive output pin.
O CH1 Low-side N-ch FET drive output pin.
⎯ Ground pin of the CH1 output block.
I CH2 Error amplifier input pin, being connected to output of CH2.
⎯ Power supply pin of the CH2 output block.
O Internal power supply pin of the CH2 gate driver block.
⎯ CH2 inductor connection pin.
O CH2 High-side N-ch FET drive output pin.
O CH2 Low-side N-ch FET drive output pin.
⎯ Ground pin of the CH2 output block.
I CH3 Error amplifier input pin, being connected to output of CH3.
⎯ Power supply pins of the CH3 output block.
O Internal power supply pin of the CH3 gate driver block.
⎯ CH3 inductor connection pins.
⎯ Ground pins of the CH3 output block.
I CH4 Error amplifier input pin, being connected to output of CH4.
⎯ Power supply pins of the CH4 output block.
O Internal power supply pin of the CH4 gate driver block.
⎯ CH4 inductor connection pins.
⎯ Ground pins of the CH4 output block.
(Continued)
4
DS04-27261-6E