R5324D Ver la hoja de datos (PDF) - RICOH Co.,Ltd.

Número de pieza

componentes Descripción

Fabricante

R5324D

CMOS 3ch-LDOs for RF Unit

RICOH Co.,Ltd. 

R5324D

OPERATION

VDD 1

CE1 2

R5324DxxxA

Error Amp.

Vref

Current Limit

R1_1

R2_1

CE2 3

Error Amp.

Vref

Current Limit

R1_2

R2_2

CE3 4

Error Amp.

Vref

Current Limit

R1_3

R2_3

8 VOUT1

7 VOUT2

6 VOUT3

5 GND

Fluctuation of each regulator’s output voltage, or VOUT1, VOUT2, VOUT3 is detected individually. Then it is put back

to an error amplifier through feedback resistors, or R1_1, R2_1, R1_2, R2_2, R1_3, R2_3 and compared with a

reference voltage and compensated for the result and make a constant voltage.

In each regulator, short protection is made with a current limit circuit and stand-by mode is available by a chip

enable circuit.

8

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