R1232D111A Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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производитель

R1232D111A

PWM STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER

RICOH Co.,Ltd. 

TEST CIRCUIT

PGND LX

A

VIN AGND

VDD TEST

CE

VFB

R1232D

Test Circuit for Input Current and Leakage Current

PGND LX

VIN AGND

VDD TEST

A

CE

VFB

PGND LX

V

VIN AGND

VDD TEST

CE

VFB

Test Circuit for Supply Current and Standby Current

PGND LX

VIN AGND

VDD TEST

CE

VFB

Test Circuit for ON resistance of LX

OSCILLOSCOPE

Input Voltage, Output Voltage, Frequency, Lx Current Limit,

Protection Delay Time, UVLO Voltage Test Circuit

PGND LX

VIN AGND

OSCILLOSCOPE

VDD TEST

CE

VFB

Soft Start Time Test Circuit

The bypass capacitor between power supply and GND is a ceramic capacitor 10µF.

7

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