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

MB39C308
(Continued)
Block Pin Name
VSEL34
DVSEL6
SS1
SS2
Common
VB
DIN
PVDD7
PGND7
AVDD
VREF
AGND
I/O
Description
Preset output voltage setting pin for CH3/CH4.
I VSEL34 = “H” : Vout_CH3 =1.8 V, Vout_CH4 = 0.9 V
VSEL34 = “L” : Vout_CH3 =1.5 V, Vout_CH4 = 0.75 V
Preset output voltage setting pin for CH6 dynamically.
I DVSEL6 = “H” : Vout_CH6 = 1.1 V
DVSEL6 = “L” : Vout_CH6 = 1.05 V
Soft-Start and Soft-Stop time setting pin (Shown in the “■ DESCRIPTION OF
I SOFT-START AND SOFT-STOP OPERATION • Soft-Start/Soft-Stop time
(tson/tsoff) Setting Conditions”).
O
Bias voltage output pin for bootstrap and low-side N-ch gate driver of all
channels.
Bias voltage input pin for bootstrap.
I DIN pin should be connected with VB pin.
(Shown in the “■ BLOCK DIAGRAM”)
⎯ Power supply pin of VB block.
⎯ Ground pin of VB block.
⎯ Power supply pin for common block.
O Reference voltage output pin.
⎯ Ground pin of common block.
6
DS04-27261-6E