Typical application 1, Rv5vh3 – Ricoh RV5VH User Manual
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RV5VH3
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TYPICAL APPLICATION 1
CSW
FB1
V
DD
EXT1
D
OUT
FB2
EXT2
GND
Output DC/DC 2
Output DC/DC 1
C2
L2
PMOS
R3
R1
R2
C3
SBD
C1
NPN Tr.
SBD
R6
R4
C4
R5
C5
L1
CoiI
L1 : 100µH, L2 : 100µH
Diode
Schottky type
capacitor
C1 : 22µF(Ta), C2 : 22µF(Ta)
C3 : 0.01µF (ceramic)
C4 : 0.01µF (ceramic)
C5 : 0.01µF (ceramic)
PMOS
2SJ238 (TOSHIBA)
NMOS
2SK1470 (SANYO)
Resistor
R1 : 100K
Ω
, R2 : 0 to 500K
Ω
R3 : 100K
Ω
R4 : 300
Ω
R5 : 0 to 500K
Ω,
R6 : 50K
Ω