RH5RH583B-T1 Ver la hoja de datos (PDF) - RICOH Co.,Ltd.

Número de pieza

componentes Descripción

Fabricante

RH5RH583B-T1

PWM STEP-UP DC/DC CONVERTER

RICOH Co.,Ltd. 

RH5RH

APPLICATION CIRCUITS

• 12V Step-up Circuit

Inductor

Diode

RH5RH502B

Cb

OUT

VIN

EXT

Vss

Rb

Tr

VOUT

ZD:6.8V

RZD

+

Capacitor

Starter Circuit

(Note) When the Output Current is small or the Output Voltage is unstable,use the Rzd for flowing the bias current through the Zener diode ZD.

FIG. 6

• Step-down Circuit

Rb2

VIN

PNP Tr

Inductor

Diode

RH5RH××1A

Lx

OUT

Rb1

Vss

VOUT

+

Capacitor

Starter Circuit

(Note) When the LX pin Voltage is over the rating at the time PNP Tr is OFF,use a RH5RH××2B and drive the PNP Tr. by the external NPN Tr.

FIG. 7

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