r1120n RICOH Co.,Ltd., r1120n Datasheet - Page 10
r1120n
Manufacturer Part Number
r1120n
Description
Low Noise 150ma L.d.o Regulator
Manufacturer
RICOH Co.,Ltd.
Datasheet
1.R1120N.pdf
(24 pages)
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OPERATION
In these ICs, fluctuation in Output Voltage V
a reference voltage by Error Amplifier, so that a constant voltage is output.
A current limit circuit working for Short Protect and a chip enable circuit are included.
V
CE
DD
3
4
Vref
R1120N
Current Limit
--
+
1A
OUT
is detected by Feed-back Registers R1, R2, and the result is compare with
R1
R2
1
2
V
GND
OUT
V
CE
DD
3
4
Vref
Current Limit
R1120N
--
+
1B
R1
R2
R1120N
1
2
V
GND
OUT
7
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