RV5VH Datasheet, PDF (24/47 Pages) RICOH electronics devices division – DC/DC CONVERTER CONTROLLER

RV5VH1××/RV5VH2××
TYPICAL APPLICATION
• RV5VH1××
Output DC/DC1
C1
CSW
DOUT
VSEN
FB
VOUT1
EXT2
D1
LX1
L1
GND
R3
R1
PMOS
L2
R2
C3
D2
Output DC/DC2
C2
<Components>
CoiIs
Diodes
Capacitors
Tr
Resistors
L1 : 100µH, L2 : 220µH
Schottky type
C1, C2 : 22µF(tantalum type), C3 : 0.01µF(ceramic type)
PMOS : 2SJ238
R1, R2 : several hundreds kΩ, R3 : 100kΩ
• RV5VH2××
Output DC/DC1
C1
L1
SBD
C4
NPN Tr.
R4
CSW
VSEN
VOUT1
EXT1
DOUT
FB
EXT2
GND
R3
R1
PMOS
L2
R2
C3
SBD
Output DC/DC2
C2
<Components>
Coils
Diodes
Capacitors
PMOS
NPN Tr.
Resistors
L1 : 27µH, L2 : 220µH
Schottky type
C1 : 47µF(tantalum type), C2 : 22µF(tantalum type)
C3 : 0.01µF(ceramic type)
C4 : 0.01µF(ceramic type)
2SJ238(TOSHIBA), etc.
2SD1628G(SANYO), etc.
R1 : 100KΩ
R2 : 0-500KΩ
R3 : 100KΩ
R4 : 300Ω
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