R1114x/R1124N Series
150mA LDO
The R1114x/R1124N Series are CMOS-based LDO regulators featuring 150mA output. High ripple rejection and excellent load
transient response of the series make the product ideally suited for use in power source for hand-held communication equipment.
The polarity of the CE pin can be selected. The auto-discharge function is also available (see Selection Guide). Two different pin
layout as R1114N and R1124N are available. Ceramic capacitors can be used.
FEATURES
•
Supply Current (I
SS
)························ Typ. 75μA (V
IN
=SET V
OUT
+1V)
•
Standby Current (I
standby
) ················· Typ. 0.1μA (Same as above, in standby)
•
Dropout Voltage (V
DIF
) ···················· Typ. 0.22V (I
OUT
=150mA, V
OUT
=2.8V)
•
Ripple Rejection (RR) ···················· Typ. 70dB (f=1kHz), Typ. 60dB (f=10kHz)
•
Input Voltage Range (V
IN
)··············· 2.0V to 6.0V
•
Output Voltage Range (V
OUT
) ········· 1.5V to 4.0V (internally fixed)
•
Output Voltage Accuracy ················
±
2%
•
Temp. coeff. of Output Voltage ······· Typ.
±
100ppm/°C
•
Line Regulation ······························ Typ. 0.02%/V
•
Fold-back Protection Circuit ··········· Current limit Typ. 40mA
•
Auto-Discharge function················· D Version
•
Packages ······································· SON1612-6, SC-82AB,
•
SOT-23-5
(R1124N is SOT-23-5 only)
Ceramic capacitors can be used···· C
IN
=1μF or more
C
OUT
=1μF or more (1.5V
<
V
OUT
<
2.5V),
=
C
OUT
=0.47μF or more (V
OUT
>
2.5V)
=
BLOCK DIAGRAMS
R1114xxx1A
R1124Nxx1A
(
CE
pin "L" active)
V
DD
-
+
Vref
Current Limit
CE
GND
CE
Vref
Current Limit
GND
CE
R1114xxx1B
R1124Nxx1B
(CE pin "H" active)
V
OUT
V
DD
-
+
V
OUT
V
DD
R1114xxx1D
R1124Nxx1D
(With Auto-Discharge function)
V
OUT
-
+
Vref
Current Limit
GND
SELECTION GUIDES
Package
SON1612-6
SC-82AB
SOT-23-5
Quantity per Reel
Part No.
4,000 pcs
R1114D.xx.1.
∗
-TR-F
3,000 pcs
R1114Q.xx.1.
∗
-TR-F
R1114N.xx.1.
∗
-TR-F
3,000 pcs
R1124N.xx.1.
∗
-TR-F
.xx.
: Specify the output voltage within the range 1.5V (.15.) to 4.0V (.40.)
in 0.1V steps.
.∗
: Select the polarity of the CE pin from (.A.) "L" active, (.B.) "H" active
or (.D.) "H" active with auto-discharge function.
PACKAGES (Top View)
SON1612-6
6
5
4
TYPICAL CHARACTERISTIC
SOT-23-5
5
4
SC-82AB
4
3
R1114x281x
R1124N281x
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0
Dropout Voltage vs. Output Current
85°C
25°C
-40°C
1
1
2
3
2
3
1
2
R1114N
1
2
3
4
5
V
DD
GND
CE
or CE
NC
V
OUT
1
2
3
4
5
R1124N
V
OUT
GND
V
DD
CE
or CE
NC
1
2
3
4
5
6
V
DD
GND
V
OUT
NC
GND
CE
or CE
1
2
3
4
CE
or CE
GND
V
OUT
V
DD
Dropout Voltage V
DIF
(V)
25
50
75
100
125
150
Output Current I
OUT
(mA)
APPLICATIONS
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for home appliances
•
Power source for battery-powered equipment
No.EK-099-091101
CMOS LDO Regulator
1. The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
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example application circuits for the products. The release of such information is not to be
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