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R1122N Datasheet(PDF) 6 Page - RICOH electronics devices division

Part No. R1122N
Description  LOW NOISE 150mA LDO REGULATOR
Download  21 Pages
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Maker  RICOH [RICOH electronics devices division]
Homepage  http://www.ricoh.com
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R1122N Datasheet(HTML) 6 Page - RICOH electronics devices division

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R1122N
6
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25°C
Dropout Voltage
VDIF (V)
Output Voltage
VOUT (V)
Condition
Typ.
Max.
1.5 <
= VOUT <
= 1.6
0.32
0.55
1.7 <
= VOUT <
= 1.8
0.28
0.47
1.9 <
= VOUT <
= 2.3
0.25
0.35
2.4 <
= VOUT <
= 2.7
0.20
0.29
2.8 <
= VOUT <
= 5.0
IOUT = 100mA
0.19
0.26
OPERATION
R1122Nxx1A
R1122Nxx1B
31
4
+
_
Current Limit
Vref
VOUT
VDD
CE
GND
R1
R2
2
R1
R2
31
4
+
_
Current Limit
Vref
VOUT
VDD
CE
GND
2
In these ICs, fluctuation of the output voltage, VOUT is detected by feed-back registers R1, R2, and the result is
compared with a reference voltage by the error amplifier, so that a constant voltage is output.
A current limit circuit for protection at short mode, and a chip enable circuit, are included.


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