RS5RM4417A-T1 データシートの表示（PDF） - RICOH Co.,Ltd.

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RS5RM4417A-T1

PWM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR

RICOH Co.,Ltd. 

RS5RM

TYPICAL APPLICATIONS

• Current Boost Circuit 1

L

D

VIN

Rb

NPN Tr

CIN

Cb

RS5RM

EXT VDD

VOUT

CE Vss

Rbe Cbe

PNP Tr

CVDD

VOUT

COUT

Examples of

Components

L

D

CIN

CvDD

COUT

:47µH(SUMIDA ELECTRIC CD105)

:Schottky Diode (HITACHI HRP22)

:220µF(Aluminum electrolytic Type)

:100µF(Tantalum type)/

220µF(Aluminum electroltic Type)

:47µF(Tantalum Type)

• Current Boost Circuit 2 (High Efficiiency Circuit)

CD

:0.01µF

Cbe :0.1µF(RS5RM5045×,RS5RM4036×,RS5RM3624×)

100PF(RS5RM3531×,RS5RM3329×,RS5RM3027×)

NPN Tr :2SD1628

PNP Tr :2SA1213

Rb

:220Ω

Rbe :12Ω

L

D

VIN

PNP Tr

Rbe

VOUT

Rb1

NPN Tr

CIN

Cb

EXT VDD

RS5RM

5045×

CE Vss

CVDD

Rb2

EXT

VDD

VOUT

CE

RN5RG

50A

GND

COUT

Examples of

Components

L

D

CIN

CVDD

COUT

:47µH(SUMIDA ELECTRIC CD105)

:Schottky Diode (HITACHI HRP22)

:220µF(Aluminum electrolytic Type)

:33µF(Tantalum type)/

220µF(Aluminum electroltic Type)

:47µF(Tantalum Type)

(NOTE) High efficiency current boost circuit,using RS5RM5045×with

RN5RG50A(RICOH Voltage Regulator).

CD

:0.01µF

NPN Tr :2SD1628

PNP Tr :2SA1213

Rb1 :220Ω

Rb2 :330Ω

Rbe :10kΩ

28

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