RS5RM RICOH Co.,Ltd., RS5RM Datasheet - Page 28

• Manufacturer Part Number: RS5RM
• Description: Pwm Step-up Dc/dc Converter With Voltage Regulator And Detector
• Manufacturer: RICOH Co.,Ltd.

28
RS5RM
TYPICAL APPLICATIONS
•
Examples of
Components
Examples of
Components
•
Current Boost Circuit 1
Current Boost Circuit 2 (High Efficiency Circuit)
V
V
IN
IN
L
D
C
Cv
C
L
D
C
C
C
IN
OUT
IN
VDD
OUT
DD
C
C
IN
IN
:47µH(SUMIDA ELECTRIC CD105)
:Schottky Diode (HITACHI HRP22)
:220µF(Aluminum electrolytic Type)
:100µF(Tantalum type)/
:47µF(Tantalum Type)
:47µH(SUMIDA ELECTRIC CD105)
:Schottky Diode (HITACHI HRP22)
:220µF(Aluminum electrolytic Type)
:33µF(Tantalum type)/
:47µF(Tantalum Type)
220µF(Aluminum electrolytic Type)
220µF(Aluminum electrolytic Type)
NPN Tr
NPN Tr
L
L
Cb
Cb
Rb1
Rb
D
D
CE
CE
EXT
EXT
RS5RM
RS5RM
5 0 4 5 x
Vss
Vss
V
V
V
DD
OUT
C
Cbe
NPN Tr :2SD1628
PNP Tr :2SA1213
Rb
Rbe
DD
(NOTE) High efficiency current boost circuit,using RS5RM5045x with
C
NPN Tr :2SD1628
PNP Tr :2SA1213
Rb1
Rb2
Rbe
D
D
RN5RG50A(RICOH Voltage Regulator).
:0.01µF
:0.1µF(RS5RM5045
:220Ω
:12Ω
:0.01µF
:220Ω
:330Ω
:10kΩ
100
Rbe Cbe
C
C
VDD
VDD
P
F(RS5RM3531
Rbe
V
CE
RN5RG
DD
GND
PNP Tr
PNP Tr
50A
EXT
V
OUT
X
X
,RS5RM4036
,RS5RM3329
Rb2
C
C
OUT
OUT
X
V
X
V
,RS5RM3624
,RS5RM3027
OUT
OUT
X
X
)
)