R1114x SERIES
LOW NOISE 150mA LDO REGULATOR
NO.EA-094-111026
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
•
•
•
•
•
•
•
•
•
•
•
Supply Current ..................................................................... Typ. 75μA
Standby Mode ...................................................................... Typ. 0.1μA
Dropout Voltage ................................................................... Typ. 0.22V (IOUT=150mA 3.0V Output type)
Ripple Rejection................................................................... Typ. 70dB (f=1kHz 3.0V Output type)
Typ. 60dB (f=10kHz)
Temperature-Drift Coefficient of Output Voltage .................. Typ. ±100ppm/°C
Line Regulation .................................................................... Typ. 0.02%/V
Output Voltage Range.......................................................... 1.5V to 4.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Output Voltage Accuracy...................................................... ±2.0%
Packages ............................................................................ SON1612-6, SC-82AB, 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 ... CIN=COUT=1μF (VOUT
= 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
R1114xxx1B
5
VOUT
VDD
VOUT
VDD
+
Vref
Vref
Current Limit
CE
3
CE
R1114xxx1D
VOUT
VDD
+
Vref
Current Limit
CE
2
Current Limit
GND
2
GND
GND
R1114x
SELECTION GUIDE
The output voltage, auto discharge function, package, and the taping type, etc. for the ICs can be selected at
the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
R1114Dxx1∗-TR-FE
SON1612-6
4,000 pcs
Yes
Yes
R1114Qxx1∗-TR-FE
SC-82AB
3,000 pcs
Yes
Yes
R1114Nxx1∗-TR-FE
SOT-23-5
3,000 pcs
Yes
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 INFORMATIONS.)
∗ : 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
3
R1114x
PIN CONFIGURATION
z SON1612-6
z SC-82AB
6
4
5
4
z SOT-23-5
3
5
(mark side)
1
2
1
3
(mark side)
2
1
PIN DESCRIPTIONS
•
•
•
4
R1114D
Pin No.
Symbol
1
VDD
2
GND
Ground Pin
3
VOUT
Output pin
4
NC
No Connection
5
GND
6
CE or CE
Description
Input Pin
Ground Pin
Chip Enable Pin
R1114Q
Pin No.
Symbol
1
CE or CE
2
GND
Ground Pin
3
VOUT
Output pin
4
VDD
Input Pin
Description
Chip Enable Pin
R1114N
Pin No.
Symbol
1
VDD
Description
2
GND
3
CE or CE
Chip Enable Pin
4
NC
No Connection
5
VOUT
Output pin
Input Pin
Ground Pin
4
2
3
R1114x
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
VIN
Input Voltage
6.5
V
VCE
Input Voltage ( CE or CE Pin)
6.5
V
VOUT
Output Voltage
−0.3~VIN+0.3
V
IOUT
Output Current
200
mA
Power Dissipation (SON1612-6) ∗
PD
Power Dissipation (SC-82AB)
∗
Power Dissipation (SOT-23-5)
∗
500
380
mW
420
Topt
Operating Temperature Range
−40~85
°C
Tstg
Storage Temperature Range
−55~125
°C
∗) For Power Dissipation, please refer to PACKAGE 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 CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
5
R1114x
ELECTRICAL CHARACTERISTICS
•
R1114xxx1A
Topt=25°C
Symbol
Conditions
VOUT
Output Voltage
VIN = Set VOUT+1V
1mA <
= IOUT <
= 30mA
IOUT
Output Current
VIN−VOUT = 1.0V
VDIF
Dropout Voltage
ISS
Supply Current
VIN = Set VOUT+1V, IOUT = 0mA
Istandby
Supply Current
(Standby)
ΔVOUT/ΔVIN
Line Regulation
VIN = Set VOUT+1V
VCE = VDD
VOUT > 1.7V,
Set VOUT+0.5V <
= VIN <
= 6.0V
<
(VOUT = 1.7V, 2.2V ≤ VIN <
= 6.0V)
IOUT = 30mA
Ripple Rejection
VIN
Input Voltage
×0.980
f=1kHz
f=10kHz
Ripple 0.5Vp−p
VOUT > 1.7V, VIN−VOUT = 1.0V
VOUT <
= 1.7, VIN−VOUT = 1.2V
IOUT = 30mA
×1.020
Unit
V
mA
75
95
μA
0.1
1.0
μA
0.02
0.10
%/V
dB
2.0
IOUT = 30mA
−40°C <
= Topt
ISC
Short Current Limit
VOUT = 0V
RPU
CE Pull-up Resistance
0.7
VCEH
CE Input Voltage “H”
VCEL
CE Input Voltage “L”
Output Noise
Max.
70
60
Output Voltage
Temperature Coefficient
en
Typ.
VIN = Set VOUT+1V
22
40
mV
1mA <
= IOUT <
= 150mA
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
Load Regulation
RR
Min.
150
ΔVOUT/ΔIOUT
ΔVOUT/
ΔTopt
6
Item
<
=
85°C
BW = 10Hz to 100kHz
6.0
V
±100
ppm
/°C
40
mA
2.0
8.0
MΩ
1.5
6.0
V
0.0
0.3
V
30
μVrms
R1114x
•
R1114xxx1B/D
Topt=25°C
Symbol
Item
Conditions
VOUT
Output Voltage
VIN = Set VOUT+1V
1mA <
= IOUT <
= 30mA
IOUT
Output Current
VIN−VOUT = 1.0V
ΔVOUT/ΔIOUT
Load Regulation
VDIF
Dropout Voltage
ISS
Supply Current
Istandby
ΔVOUT/ΔVIN
Supply Current (Standby)
Line Regulation
RR
Ripple Rejection
VIN
Input Voltage
ΔVOUT/
ΔTopt
Min.
×0.980
Unit
×1.020
V
mA
VIN = Set VOUT+1V
22
40
mV
1mA <
= IOUT <
= 150mA
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
VIN = Set VOUT+1V, IOUT = 0mA
VIN = Set VOUT+1V
VCE = GND
VOUT > 1.7V,
Set VOUT+0.5V <
= VIN <
= 6.0V
(VOUT <
= 1.7V, 2.2V ≤
VIN <
= 6.0V) IOUT = 30mA
f=1kHz
f=10kHz
Ripple 0.5Vp−p
VOUT > 1.7V, VIN−VOUT = 1.0V
VOUT <
= 1.7, VIN−VOUT = 1.2V
IOUT = 30mA
75
95
μA
0.1
1.0
μA
0.02
0.10
%/V
70
60
dB
2.0
IOUT = 30mA
−40°C <
= Topt
ISC
Short Current Limit
VOUT = 0V
RPD
CE Pull-down Resistance
0.7
VCEH
CE Input Voltage “H”
VCEL
CE Input Voltage “L”
RLOW
Max.
150
Output Voltage
Temperature Coefficient
en
Typ.
<
=
85°C
6.0
V
±100
ppm
/°C
40
mA
2.0
8.0
MΩ
1.5
6.0
V
0.0
0.3
V
Output Noise
BW = 10Hz to 100kHz
30
μVrms
On Resistance of Nch for
auto-discharge
(Only for D version)
VCE = 0V
60
Ω
7
R1114x
•
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25°C
Dropout Voltage
Output Voltage VOUT (V)
VDIF (V)
Condition
Typ.
Max.
VOUT = 1.5
0.38
0.70
VOUT = 1.6
0.36
0.65
0.34
0.60
0.32
0.55
VOUT = 1.7
IOUT = 150mA
1.8
<
=
VOUT
<
=
2.0
2.1
<
=
VOUT
<
=
2.7
0.28
0.50
2.8
<
=
VOUT
<
=
4.0
0.22
0.35
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance).
(Note: If additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for
phase compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor with a capacitance value as much as 1.0μF or more between VDD and GND pin, and as
close as possible to the pins.
Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as
short as possible.
8
R1114x
TEST CIRCUITS
CE
VOUT
VDD
IN
CE
R1114xxx1B/D
SERIES
OUT
IN
IOUT
1.0μF
1.0μF
ISS
1.0μF
1.0μF
GND
Fig.1 Standard test Circuit
Fig.2 Supply Current Test Circuit
CE
CE
VOUT
VDD
R1114xxx1B/D
SERIES
P.G.
OUT
R1114xxx1B/D
SERIES
GND
IN
VOUT
VDD
OUT
IN
IOUT
1.0μF
1.0 F
GND
VOUT
VDD
OUT
R1114xxx1B/D
SERIES
1.0μF
GND
I1
Fig.3 Ripple Rejection, Line Transient
Response Test Circuit
I2
Fig.4 Load Transient Response Test Circuit
9
R1114x
TYPICAL APPLICATIONS
CE
IN
VDD
CE
R1114Nxx1A
SERIES
OUT IN
VOUT
+
+
Cap.
Cap.
GND
VDD
R1114xxx1B
SERIES
OUT
VOUT
+
+
Cap.
Cap.
GND
(External Components)
Output Capacitor; Ceramic 0.47μF (Set Output Voltage in the range from 2.5 to 4.0V)
Ceramic 1.0μF (Set Output Voltage in the range from 1.5 to 2.4V)
Input Capacitor; Ceramic 1.0μF
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (Topt=25°C)
R1114x151x
R1114x281x
3.0
1.4
1.8V
1.2
1.0
0.8
0.6
VIN=3.5V
0.4
2.0V
0.2
2.5V
0
100
200
300
400
VIN=4.8V
2.0
1.5
3.1V
1.0
3.8V 3.5V
0.5
R1114x401x
4.5
4.0
3.5
VIN=6.0V
3.0
2.5
2.0
4.5V
1.5
4.3V
5.0V
1.0
0.5
0.0
0
100
200
300
Output Current IOUT(mA)
0
100
200
300
Output Current IOUT(mA)
Output Current IOUT(mA)
Output Voltage VOUT(V)
2.5
0.0
0.0
10
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.6
400
400
R1114x
2) Output Voltage vs. Input Voltage (Topt=25°C)
R1114x281x
2.9
1.6
2.8
Output Voltage VOUT(V)
Output Voltage VOUT(V)
R1114x151x
1.7
1.5
1.4
1.3
IOUT=1mA
1.2
IOUT=30mA
1.1
IOUT=50mA
2.7
2.6
2.5
2.4
IOUT=1mA
2.3
IOUT=30mA
2.2
IOUT=50mA
2.1
2.0
1.0
1
2
3
4
5
2
6
3
Input Voltage VIN(V)
4
5
6
Input Voltage VIN(V)
R1114x401x
Output Voltage VOUT(V)
4.2
IOUT=1mA
4.0
IOUT=30mA
3.8
IOUT=50mA
3.6
3.4
3.2
3.0
1
2
3
4
5
6
Input Voltage VIN(V)
3) Supply Current vs. Input Voltage (Topt=25°C)
R1114x281x
90
80
80
Supply Current ISS(μA)
Supply Current ISS(μA)
R1114x151x
90
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
0
0
1
2
3
4
Input Voltage VIN(V)
5
6
0
1
2
3
4
5
6
Input Voltage VIN(V)
11
R1114x
R1114x401x
Supply Current ISS(μA)
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
Input Voltage VIN(V)
4) Output Voltage vs. Temperature
R1114x151x
R1114x281x
2.86
1.52
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.53
1.51
1.50
1.49
1.48
1.47
1.46
-40
-15
10
35
60
85
Temperature Topt(°C)
R1114x401x
Output Voltage VOUT(V)
4.06
4.04
4.02
4.00
3.98
3.96
3.94
-15
10
35
60
Temperature Topt(°C)
12
2.82
2.80
2.78
2.76
2.74
-40
-15
10
35
60
Temperature Topt(°C)
4.08
3.92
-40
2.84
85
85
R1114x
5) Supply Current vs. Temperature
R1114x281x
90
80
80
Supply Current ISS(μA)
Supply Current ISS(μA)
R1114x151x
90
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
-40
-15
10
35
60
0
-40
85
-15
10
35
60
85
Temperature Topt(°C)
Temperature Topt(°C)
R1114x401x
Supply Current ISS(μA)
90
80
70
60
50
40
30
20
10
0
-40
-15
10
35
60
85
Temperature Topt(°C)
6) Dropout Voltage vs. Temperature
R1114x151x
R1114x161x
0.6
85°C
25°C
-40°C
0.5
Dropout Voltage VDIF(V)
Dropout Voltage VDIF(V)
0.6
0.4
0.3
0.2
0.1
0.0
0
25
50
75
100
125
Output Current IOUT(mA)
150
85°C
25°C
-40°C
0.5
0.4
0.3
0.2
0.1
0.0
0
25
50
75
100
125
150
Output Current IOUT(mA)
13
R1114x
R1114x171x
R1114x181x
0.6
85°C
25°C
-40°C
0.5
Dropout Voltage VDIF(V)
Dropout Voltage VDIF(V)
0.6
0.4
0.3
0.2
0.1
85°C
25°C
-40°C
0.5
0.4
0.3
0.2
0.1
0.0
0.0
0
25
50
75
100
125
0
150
25
R1114x211x
125
150
R1114x281x
85°C
25°C
-40°C
0.35
0.30
Dropout Voltage VDIF(V)
Dropout Voltage VDIF(V)
100
0.40
0.40
0.25
0.20
0.15
0.10
0.05
0.00
85°C
25°C
-40°C
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
25
50
75
100
125
150
R1114x401x
0.40
85°C
25°C
-40°C
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
25
50
75
100
125
Output Current IOUT(mA)
0
25
50
75
100
125
Output Current IOUT(mA)
Output Current IOUT(mA)
Dropout Voltage VDIF(V)
75
Output Current IOUT(mA)
Output Current IOUT(mA)
14
50
150
150
R1114x
7) Dropout Voltage vs. Set Output Voltage (Topt=25°C)
Dropout Voltage VDIF(V)
0.60
10mA
30mA
50mA
150mA
0.50
0.40
0.30
0.20
0.10
0.00
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Set Output Voltage VREG(V)
8) Ripple Rejection vs. Input Bias Voltage (Topt=25°C, CIN=none, COUT=ceramic0.47μF)
R1114x281x
Ripple Rejection RR(dB)
80
70
60
50
40
30
f=1kHz
f=10kHz
f=100kHz
20
10
0
2.9
3.0
3.1
3.2
80
70
60
50
40
30
10
0
2.9
3.3
f=1kHz
f=10kHz
f=100kHz
20
3.0
3.1
3.2
Input Voltage VIN(V)
Input Voltage VIN(V)
R1114x281x
R1114x281x
Ripple 0.2Vp-p, IOUT=30mA
90
80
70
60
50
40
30
f=1kHz
f=10kHz
f=100kHz
20
10
0
2.9
Ripple 0.5Vp-p, IOUT=1mA
90
3.0
3.1
3.2
Input Voltage VIN(V)
3.3
3.3
Ripple 0.5Vp-p, IOUT=30mA
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
90
Ripple Rejection RR(dB)
R1114x281x
Ripple 0.2Vp-p, IOUT=1mA
80
70
60
50
40
30
f=1kHz
f=10kHz
f=100kHz
20
10
0
2.9
3.0
3.1
3.2
3.3
Input Voltage VIN(V)
15
R1114x
R1114x281x
90
80
70
60
50
40
30
f=1kHz
f=10kHz
f=100kHz
20
10
0
2.9
3.0
3.1
3.2
Ripple 0.5Vp-p, IOUT=50mA
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
R1114x281x
Ripple 0.2Vp-p, IOUT=50mA
80
70
60
50
40
30
20
10
0
2.9
3.3
f=1kHz
f=10kHz
f=100kHz
Input Voltage VIN(V)
3.0
3.1
3.2
3.3
Input Voltage VIN(V)
9) Ripple Rejection vs. Frequency (CIN=none)
R1114x151x
VIN=2.5VDC+0.5Vp-p,
COUT=Ceramic 1.0μF
90
80
70
60
50
40
30
20
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
0
0.1
1
10
80
70
60
50
40
30
20
0
0.1
100
60
50
40
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
1
10
Frequency f(kHz)
16
100
100
VIN=3.8VDC+0.5Vp-p,
COUT=Ceramic 1.0μF
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
70
0
0.1
10
R1114x281x
VIN=3.8VDC+0.5Vp-p,
COUT=Ceramic 0.47μF
80
20
1
Frequency f(kHz)
R1114x281x
30
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
Frequency f(kHz)
90
VIN=2.5VDC+0.5Vp-p,
COUT=Ceramic 2.2μF
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
R1114x151x
80
70
60
50
40
30
20
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
0
0.1
1
10
Frequency f(kHz)
100
R1114x
R1114x401x
90
80
70
60
50
40
IOUT=1mA
IOUT=30mA
IOUT=50mA
30
20
10
0
0.1
1
10
VIN=5.0VDC+0.5Vp-p,
COUT=Ceramic 1.0μF
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
R1114x401x
VIN=5.0VDC+0.5Vp-p,
COUT=Ceramic 0.47μF
80
70
60
50
40
IOUT=1mA
IOUT=30mA
IOUT=50mA
30
20
10
0
0.1
100
1
Frequency f(kHz)
10
100
Frequency f(kHz)
10) Input Transient Response (IOUT=30mA, CIN=none, tr=tf=5μs, COUT=Ceramic 0.47μF)
R1114x151x
4
1.54
Input Voltage
3
1.53
2
1.52
1
1.51
0
Output Voltage
1.50
Input Voltage VIN(V)
Output Voltage VOUT(V)
1.55
1.49
0
10
20
30
40
50
60
70
80
90
100
Time T(μs)
6
2.84
5
Input Voltage
2.83
2.82
4
3
2.81
2
Output Voltage
2.80
Input Voltage VIN(V)
Output Voltage VOUT(V)
R1114x281x
2.85
1
2.79
0
10
20
30
40
50
60
70
80
90
0
100
Time T(μs)
17
R1114x
11) Load Transient Response (tr=tf=0.5μs, CIN=Ceramic 1.0μF)
R1114x151x
Output Voltage VOUT(V)
1.70
150
100
Output Current
1.65
50
1.60
0
1.55
Output Voltage
1.50
Output Current IOUT(mA)
VIN=2.5V, COUT=Ceramic 1.0μF
1.75
1.45
0
2
4
6
8
10
12
14
16
18
20
Time T(μs)
R1114x151x
Output Voltage VOUT(V)
1.70
150
100
Output Current
1.65
50
1.60
0
1.55
Output Voltage
1.50
Output Current IOUT(mA)
VIN=2.5V, COUT=Ceramic 2.2μF
1.75
1.45
0
2
4
6
8
10
12
14
16
18
20
Time T(μs)
R1114x281x
Output Voltage VOUT(V)
3.00
100
Output Current
2.95
50
2.90
0
2.85
Output Voltage
2.80
2.75
0
2
4
6
8
10
Time T(μs)
18
150
12
14
16
18
20
Output Current IOUT(mA)
VIN=3.8V, COUT=Ceramic 0.47μF
3.05
R1114x
R1114x281x
Output Voltage VOUT(V)
3.00
150
100
Output Current
2.95
50
2.90
0
2.85
Output Voltage
2.80
Output Current IOUT(mA)
VIN=3.8V, COUT=Ceramic 1.0μF
3.05
2.75
0
2
4
6
8
10
12
14
16
18
20
Time T(μs)
R1114x281x
Output Voltage VOUT(V)
3.00
150
100
Output Current
2.95
50
2.90
0
2.85
Output Voltage
2.80
Output Current IOUT(mA)
VIN=3.8V, COUT=Ceramic 2.2μF
3.05
2.75
0
2
4
6
8
10
12
14
16
18
20
Time T(μs)
12) Turn-on/off speed with CE pin (D version)
5
2
4
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
1
0
3
2
1
0
-5
0
5
10
15
Time T(μs)
20
25
6
3
2
1
5
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
0
4
3
2
1
0
-50 0
Output Voltage VOUT(V)
3
4
CE Input Voltage VCE(V)
6
Output Voltage VOUT(V)
CE Input Voltage VCE(V)
R1114x151D (VIN=2.5V, CIN=Ceramic 1.0μF, COUT=Ceramic 1.0μF)
4
50 100 150 200 250 300 350 400 450
Time T(μs)
19
R1114x
8
3
7
2
6
1
5
2
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
1
0
6
5
4
3
-1
2
1
0
-5
0
5
10
15
20
25
4
0
-1
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
3
2
1
0
-20 0
Time T(μs)
Output Voltage VOUT(V)
4
7
CE Input Voltage VCE(V)
8
3
Output Voltage VOUT(V)
CE Input Voltage VCE(V)
R1114x281D (VIN=3.8V, CIN=Ceramic 0.47μF, COUT=Ceramic 0.47μF)
4
20 40 60 80 100 120 140 160 180
Time T(μs)
8
6
12
6
4
10
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
2
0
8
6
-2
4
2
0
4
2
0
5
10
15
Time T(μs)
20
20
25
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
12
10
8
0
6
-2
4
2
0
-2
-5
14
-20 0
-2
20 40 60 80 100 120 140 160 180
Time T(μs)
Output Voltage VOUT(V)
14
CE Input Voltage VCE(V)
8
Output Voltage VOUT(V)
CE Input Voltage VCE(V)
R1114x401D (VIN=5.0V, CIN=Ceramic 0.47μF, COUT=Ceramic 0.47μF)
R1114x
ESR vs. Output Current
When using these ICs, consider the following points:
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance)
of which is in the range described as follows:
CE
VOUT
Ceramic
Cap.
R1114xxx1B/D
Spectrum
Analyzer
S.A.
VIN
Ceramic
Cap.
VIN
GND
ESR
IOUT
Measuring Circuit for white noise; R1114xxx1B/D
The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions
when the white noise level is under 40μV (Avg.) are marked as the hatched area in the graph.
(Note: If additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase
compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
(1) VIN=VOUT+1V
(2) Frequency Band: 10Hz to 2MHz
(3) Temperature: −40°C to 25°C
R1114x151x
R1114x161x
CIN=Ceramic 1.0μF,
COUT=Ceramic 1.0μF
100
100
10
ESR (Ω)
ESR (Ω)
10
1
0.1
0.01
0
CIN=Ceramic 0.47μF,
COUT=Ceramic 0.68μF
1
0.1
30
60
90
120
Load Current IOUT (mA)
150
0.01
0
30
60
90
120
150
Load Current IOUT (mA)
21
R1114x
R1114x211x
R1114x281x
CIN=Ceramic 0.47μF,
COUT=Ceramic 0.47μF
100
100
10
ESR (Ω)
ESR (Ω)
10
1
0.1
0.01
0
1
0.1
30
60
90
120
Load Current IOUT (mA)
22
CIN=Ceramic 0.47μF,
COUT=Ceramic 0.47μF
150
0.01
0
30
60
90
120
Load Current IOUT (mA)
150
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 information thereon.
2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written
consent of Ricoh.
3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise
taking out of your country the products or the technical information described herein.
4. The technical information described in this document shows typical characteristics of and example application circuits
for the products. The release of such information is not to be construed as a warranty of or a grant of license under
Ricoh's or any third party's intellectual property rights or any other rights.
5. The products listed in this document are intended and designed for use as general electronic components in standard
applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products,
amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality
and reliability, for example, in a highly specific application where the failure or misoperation of the product could result
in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and
transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us.
6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products
are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from
such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy
feature, fire containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or
damage arising from misuse or inappropriate use of the products.
7. Anti-radiation design is not implemented in the products described in this document.
8. The X-ray exposure can influence functions and characteristics of the products. Confirm the product functions and
characteristics in the evaluation stage.
9. WLCSP products should be used in light shielded environments. The light exposure can influence functions and
characteristics of the products under operation or storage.
10. There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the
case of recognizing the marking characteristic with AOI, please contact Ricoh sales or our distributor before attempting
to use AOI.
11. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or
the technical information.
Halogen Free
Ricoh is committed to reducing the environmental loading materials in electrical devices
with a view to contributing to the protection of human health and the environment.
Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since
April 1, 2012.
https://www.e-devices.ricoh.co.jp/en/
Sales & Support Offices
Ricoh Electronic Devices Co., Ltd.
Shin-Yokohama Office (International Sales)
2-3, Shin-Yokohama 3-chome, Kohoku-ku, Yokohama-shi, Kanagawa, 222-8530, Japan
Phone: +81-50-3814-7687 Fax: +81-45-474-0074
Ricoh Americas Holdings, Inc.
675 Campbell Technology Parkway, Suite 200 Campbell, CA 95008, U.S.A.
Phone: +1-408-610-3105
Ricoh Europe (Netherlands) B.V.
Semiconductor Support Centre
Prof. W.H. Keesomlaan 1, 1183 DJ Amstelveen, The Netherlands
Phone: +31-20-5474-309
Ricoh International B.V. - German Branch
Semiconductor Sales and Support Centre
Oberrather Strasse 6, 40472 Düsseldorf, Germany
Phone: +49-211-6546-0
Ricoh Electronic Devices Korea Co., Ltd.
3F, Haesung Bldg, 504, Teheran-ro, Gangnam-gu, Seoul, 135-725, Korea
Phone: +82-2-2135-5700 Fax: +82-2-2051-5713
Ricoh Electronic Devices Shanghai Co., Ltd.
Room 403, No.2 Building, No.690 Bibo Road, Pu Dong New District, Shanghai 201203,
People's Republic of China
Phone: +86-21-5027-3200 Fax: +86-21-5027-3299
Ricoh Electronic Devices Shanghai Co., Ltd.
Shenzhen Branch
1205, Block D(Jinlong Building), Kingkey 100, Hongbao Road, Luohu District,
Shenzhen, China
Phone: +86-755-8348-7600 Ext 225
Ricoh Electronic Devices Co., Ltd.
Taipei office
Room 109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan (R.O.C.)
Phone: +886-2-2313-1621/1622 Fax: +886-2-2313-1623