R1114x SERIES
LOW NOISE 150mA LDO REGULATOR
NO.EA-094-0512
OUTLINE
The R1114x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an
error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function. The line transient response and load
transient response of the R1114x Series are excellent, thus these ICs are very suitable for the power supply for
hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are SOT-23-5,
SC-82AB, and SON1612-6 therefore high density mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
Low Supply Current ............................................................. Typ. 75µA
Standby Mode ...................................................................... Typ. 0.1µA
Low Dropout Voltage............................................................ Typ. 0.22V (I
OUT
=150mA 3.0V Output type)
High Ripple Rejection .......................................................... Typ. 70dB (f=1kHz 3.0V Output type)
............................................................................................. Typ. 60dB (f=10kHz)
Low Temperature-Drift Coefficient of Output Voltage........... Typ.
±100ppm/°C
Excellent Line Regulation .................................................... Typ. 0.02%/V
High Output Voltage Accuracy .............................................
±2.0%
Small Packages ................................................................. SOT-23-5/SC-82AB/SON1612-6
Output Voltage ..................................................................... Stepwise setting with a step of 0.1V in
the range of 1.5V to 4.0V is possible
Built-in Fold Back Protection Circuit .................................... Typ. 40mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC ... C
IN
=C
OUT
=1µF
(V
OUT
<2.5V)
C
IN
=1µF,
C
OUT
=0.47µF
(V
OUT
>
2.5V)
=
APPLICATIONS
•
Power source for portable communication equipment.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for battery-powered equipment.
1
R1114x
BLOCK DIAGRAMS
R1114xxx1A
1
V
DD
5
V
OUT
R1114xxx1B
V
DD
-
+
V
OUT
Vref
CE
3
Current Limit
GND
2
Vref
Current Limit
CE
GND
R1114xxx1D
V
DD
-
+
Vref
Current Limit
CE
GND
V
OUT
2
R1114x
SELECTION GUIDE
The output voltage, version, and the taping type for the ICs can be selected at the user’s request.
The selection can be made with designating the part number as shown below;
R1114xxx1x-xx
↑ ↑
a b
Code
a
b
↑ ↑
c d
←Part
Number
Contents
Designation of Package Type:
N: SOT-23-5 D: SON1612-6 Q: SC-82AB
Setting Output Voltage (V
OUT
):
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.
Designation of Active Type:
A: active low type
B: active high type
D: active high, with auto discharge
Designation of Taping Type:
Ex. TR (refer to Taping Specifications; TR type is the standard direction.)
c
d
3
R1114x
PIN CONFIGURATION
SOT-23-5
5
4
SC-82AB
4
3
6
SON1612-6
5
4
(mark side)
(mark side)
1
1
2
3
2
1
2
3
PIN DESCRIPTIONS
•
R1114Q
Pin No.
1
2
3
4
Symbol
CE
or CE
Description
Chip Enable Pin
Ground Pin
Output pin
Input Pin
GND
V
OUT
V
DD
•
R1114N
Pin No.
1
2
3
4
5
Symbol
V
DD
GND
CE
or CE
Description
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Output pin
NC
V
OUT
•
R1114D
Pin No.
1
2
3
4
5
6
Symbol
V
DD
GND
V
OUT
NC
GND
CE
or CE
Description
Input Pin
Ground Pin
Output pin
No Connection
Ground Pin
Chip Enable Pin
4
R1114x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Input Voltage
Input Voltage (
CE
or CE Pin)
Output Voltage
Output Current
Power Dissipation (SOT-23-5)
∗
1
Power Dissipation (SC82-AB)
∗
1
Power Dissipation (SON1612-6)
∗
1
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
6.5
−0.3~V
IN
+0.3
200
420
380
500
−40~85
−55~125
°C
°C
mW
Unit
V
V
V
mA
∗1
For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
5
