R1211X Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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Компоненты Описание

производитель

R1211X

STEP-UP DC/DC CONTROLLER

RICOH Co.,Ltd. 

R1211x

∗UVLO Detector Threshold/

Hysteresis Range Test

VIN

EXT

CE

VFB

GND DELAY

OSCILLOSCOPE

∗ CE "L" Input Current/"H" Input Current Test

6V

VIN

CE

A

VFB

0V/6V

GND DELAY

∗CE "L" Input Voltage/"H" Input Voltage Test

2.5V/6V

VIN

EXT

CE

VFB

GND DELAY

OSCILLOSCOPE

∗Soft-start Time Test

C5

C3

Coil

VIN

EXT

CE

VFB

GND DELAY

Diode

NMOS

C1

0V/3.3V

R3

VOUT

C2 OSCILLOSCOPE

Rout

R1

R2

<Components>

Inductor (L)

Diode (SD)

Capacitors

NMOS Transistor

Resistors

: 22µH (TDK LDR655312T-220)

: CRS02 (Toshiba)

C1 : 680pF (Ceramic), C2: 22µF (Tantalum)+2.2µF (Ceramic),

C3 : 68µF (Tantalum)+2.2µF (Ceramic), C5: 22µF (Tantalum)

: IRF7601 (International Rectifier)

: R1: 90kΩ, R2: 10kΩ, R3: 30kΩ

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