R1114N Series
Low Noise 150 mA LDO Regulator for Automotive Applications
NO.EC-094-131219
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 package for these ICs is SOT-23-5, the
high density mounting of the ICs on boards is possible.
FEATURES
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Input Voltage Range (Maximum Rating) ............................ 2.0V to 6V (6.5V)
Supply Current ..................................................................... Typ. 75μA
Standby Mode ...................................................................... Typ. 0.1μA
Dropout Voltage ................................................................... Typ. 0.22V (I
OUT
=150mA 3.0V Output type)
Ripple Rejection................................................................... Typ. 70dB (f=1kHz 3.0V Output type)
Typ. 60dB (f=10kHz)
Output Voltage Range.......................................................... 1.5V to 4.0V (0.1V steps)
(
For other voltages, please refer to
MARK SPECIFICATION TABLE)
Output Voltage Accuracy......................................................
±2.0%
Temperature-Drift Coefficient of Output Voltage .................. Typ.
±100ppm/°C
Line Regulation .................................................................... Typ. 0.02%/V
Output Noise ........................................................................ TYP. 30μVrms (BW=10Hz~100kHz)
Packages ............................................................................ SOT-23-5
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
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Power source for accessories such as car audios, car navigation systems, and ETC systems
1
R1114N
NO.EC-094-131219
SELECTION GUIDE
The output voltage, auto discharge function, and the taping type, etc. for the ICs can be selected at the user’s
request.
Product Name
R1114Nxx1∗-TR-#E
Package
SOT-23-5
Quantity per Reel
3,000 pcs
Pb Free
Yes
Halogen Free
Yes
xx : The output voltage can be designated in the range from 1.5V(15) to 4.0V(40) in 0.1V steps.
(For other voltages, please refer to
MARK SPECIFICATION TABLE)
∗
: CE pin polarity and auto discharge function at off state are options as follows.
(A) "L" active, without auto discharge function at off state
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
# : Specify Automotive Class Code
Operating
Temperature Range
-40°C to 85°C
Guaranteed Specs
Temperature Range
25°C
Screening
High Temperature
A
* Auto-discharge function quickly lowers the output voltage to 0V, when the chip enable signal is switched from the active
mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.
PIN DESCRIPTIONS
SOT-23-5
5
4
(mark side)
1
2
3
•
R1114N
Pin No.
1
2
3
4
5
Symbol
V
DD
GND
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Output pin
Description
CE
or CE
NC
V
OUT
3
R1114N
NO.EC-094-131219
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Tj
Tstg
Input Voltage
Input Voltage (
CE
or CE Pin)
Output Voltage
Output Current
Power Dissipation (SOT-23-5)
∗
Junction Temperature
Storage Temperature Range
Item
Rating
6.5
6.5
−0.3~V
IN
+0.3
200
420
−40~125
−55~125
Unit
V
V
V
mA
mW
°C
°C
∗)
Refer to
PACKAGE INFORMATION
for detailed information.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent
damages and may degrade the life time and safety for both device and system using the device in the field. The
functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING RATINGS
Symbol
V
IN
T
a
Input Voltage
Operating Temperature Range
Item
Rating
2.0 to 6
−40
to 85
Unit
V
°C
RECOMMENDED OPERATING RATINGS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating ratings. The semiconductor devices cannot operate normally over the recommended
operating ratings, even if when they are used over such ratings by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended
operating ratings.
4
Embedded System
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