BD95242MUV_10 Datasheet, PDF (13/21 Pages) Rohm – 2ch Switching Regulator for Desktop PC

6. Setting standard voltage (REF)
VIN
REF
Outside
voltage
FB
R0
R0
H³Reg^TM
CONTROLLA
RQ
S
Technical Note
It is available to set the reference voltage (REF)
with outside supply voltage ×2 [V] by using outside
power supply voltage.
REG2(3.3V)
R1
REF
R2
FB
R0
R0
VIN
H³Reg^TM
CONTROLLA
RQ
S
It is available to set the reference voltage (REF) by
the resistance division value from REG2 in case
REF is not set from an external power supply.
R2
REF=
×REG2 [V]・・・(15)
R1+R2
7. Setting output voltage
This IC is operated that output voltage is REF×2≒FB.
And it is operated that output voltage is feed back to FB pin.
VIN
REF
FB
R0
R0
H³Reg^TM
CONTROLLA
RQ
S
SLLM
SLLM
VIN
Driver
Circuit
Output
voltage
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13/20
2010.03 - Rev.C