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R1121N Datasheet, PDF (2/16 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR  
s SELECTION GUIDE
The output voltage, the active type, the packing type, and the taping type for the ICs can be selected at the user's request.
The selection can be made by designating the part number as shown below :
R1121XXX1X-XX
↑↑ ↑
ab c
←Part Number
Code
a
b
c
Contents
Setting Output Voltage (VOUT) :
Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible.
Designation of Active Type :
A : active “L” type
B : active “H” type
Designation of Taping Type :
Ex. TR, TL (refer to Taping Specifications; TR type is the standard direction.)
s PIN CONFIGURATION
SOT-23-5
5
4
NC
CE
(mark side)
VOUT
GND
VDD
s PIN DESCRIPTION
Pin No.
1
2
3
4
5
1
2
3
Symbol
VOUT
GND
VDD
CE or CE
NC
Description
Output pin
Ground Pin
Input Pin
Chip Enable Pin
No Connection
Rev.1.11
-2-