RICOH R1124N331B

R1124N SERIES
LOW NOISE 150mA LDO REGULATOR
NO.EA-095-0512
OUTLINE
The R1124N Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely 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 R1124N 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, 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 (IOUT=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
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 ... CIN=COUT=1µF (VOUT<2.5V)
CIN=1µF, COUT=0.47µF (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
R1124N
BLOCK DIAGRAMS
R1124Nxx1A
VDD
R1124Nxx1B
VOUT
VOUT
VDD
+
Vref
Vref
Current Limit
CE
Current Limit
GND
GND
CE
R1124Nxx1D
VOUT
VDD
+
Vref
Current Limit
GND
CE
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;
R1124Nxx1x-xx
↑
a
Code
a
b
c
2
←Part Number
↑ ↑
b c
Contents
Setting Output Voltage (VOUT):
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.)
R1124N
PIN CONFIGURATION
SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTIONS
Pin No.
Symbol
Description
1
VOUT
Output pin
2
GND
Ground Pin
3
VDD
4
CE or CE
Chip Enable Pin
5
NC
No Connection
Input Pin
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
420
mW
∗1
PD
Power Dissipation(SOT-23-5)
Topt
Operating Temperature Range
−40~85
°C
Tstg
Storage Temperature Range
−55~125
°C
∗1 For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
3
R1124N
ELECTRICAL CHARACTERISTICS
•
R1124Nxx1A
Topt=25°C
Symbol
Conditions
Min.
Typ.
Unit
VOUT×
1.020
V
Output Voltage
VIN = Set VOUT+1V
1mA <
= IOUT <
= 30mA
IOUT
Output Current
VIN−VOUT = 1.0V
∆VOUT/∆IOUT
Load Regulation
VIN = Set VOUT+1V
1mA <
= IOUT <
= 150mA
VDIF
Dropout Voltage
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
ISS
Supply Current
VIN = Set VOUT+1V, IOUT = 0mA
Istandby
Supply Current
(Standby)
∆VOUT/∆VIN
Line Regulation
VIN = Set VOUT+1V
VCE = VDD
VOUT > 1.7V,
Set VOUT+0.5V <
= VIN <
= 6.0V
1.7V,
2.2V
≤
VIN <
(VOUT <
=
= 6.0V)
OUT
=
30mA
I
RR
Ripple Rejection
VIN
Input Voltage
VOUT×
0.980
Max.
VOUT
150
f=1kHz
f=10kHz
Ripple 0.5Vp−p
VOUT > 1.7V, VIN−VOUT = 1.0V
VOUT <
= 1.7V, VIN−VOUT = 1.2V
IOUT = 30mA
95
µA
0.1
1.0
µA
0.02
0.10
%/V
dB
ILIM
Short Current Limit
VOUT = 0V
RPU
CE Pull-up Resistance
0.7
VCEH
CE Input Voltage “H”
VCEL
CE Input Voltage “L”
Output Noise
85°C
BW = 10Hz to 100kHz
mV
75
2.0
<
=
40
70
60
IOUT = 30mA
−40°C <
= Topt
en
mA
22
Output Voltage
Temperature Coefficient
∆VOUT/∆T
4
Item
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
R1124N
•
R1124Nxx1B/D
Topt=25°C
Symbol
Item
Conditions
VOUT
Output Voltage
VIN = Set VOUT+1V
1mA <
= IOUT <
= 30mA
IOUT
Output Current
VIN−VOUT = 1.0V
∆VOUT/∆IOUT
Load Regulation
VDIF
Dropout Voltage
ISS
Supply Current
Istandby
∆VOUT/∆VIN
Supply Current (Standby)
Line Regulation
RR
Ripple Rejection
VIN
Input Voltage
Min.
VOUT×
0.980
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
VOUT×
1.020
V
mA
75
95
µA
0.1
1.0
µA
0.02
0.10
%/V
70
60
dB
2.0
ILIM
Short Current Limit
VOUT = 0V
RPD
CE Pull-down Resistance
0.7
VCEH
CE Input Voltage “H”
VCEL
CE Input Voltage “L”
RLOW
Unit
VIN = Set VOUT+1V
22
40
mV
1mA <
= IOUT <
= 150mA
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
IOUT = 30mA
−40°C <
= Topt
en
Max.
150
Output Voltage
Temperature Coefficient
∆VOUT/∆T
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
5
R1124N
•
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: When the additional ceramic capacitors are connected 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
6
R1124N
TEST CIRCUITS
CE
VOUT
VDD
IN
CE
R1124Nxx1B
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
R1124Nxx1B
SERIES
P.G.
OUT
R1124Nxx1B
SERIES
GND
IN
VOUT
VDD
OUT
IN
IOUT
1.0µF
1.0µF
GND
VOUT
VDD
OUT
R1124Nxx1B
SERIES
1.0µF
GND
I1
Fig.3 Ripple Rejection, Line Transient
Response Test Circuit
I2
Fig.4 Load Transient Response Test Circuit
7
R1124N
TYPICAL APPLICATIONS
CE
IN
VDD
CE
R1124Nxx1A
SERIES
VOUT
OUT IN
+
+
Cap.
Cap.
GND
VDD
R1124Nxx1B/D
SERIES
VOUT
+
OUT
+
Cap.
Cap.
GND
(External Components)
Output Capacitor; Ceramic 0.47µF (Set Output Voltage in the range from 2.5 to 5.0V)
Ceramic 1.0µF (Set Output Voltage in the range from 2.0 to 2.4V)
Input Capacitor; Ceramic 1.0µF
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (Topt=25°C)
R1124N151x
R1124N281x
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
0.0
100
200
300
400
VIN=4.8V
2.0
1.5
3.1V
1.0
3.8V 3.5V
0.5
R1124N401x
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
8
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.6
400
400
R1124N
2) Output Voltage vs. Input Voltage (Topt=25°C)
R1124N151x
R1124N281x
2.9
1.6
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.7
1.5
1.4
1.3
IOUT=1mA
1.2
IOUT=30mA
1.1
IOUT=50mA
2.8
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
4
5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
R1124N401x
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)
R1124N281x
90
80
80
Supply Current ISS(µA)
Supply Current ISS(µA)
R1124N151x
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)
9
R1124N
R1124N401x
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
R1124N151x
R1124N281x
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
R1124N401x
Output Voltage VOUT(V)
4.08
4.06
4.04
4.02
4.00
3.98
3.96
3.94
-15
10
35
60
Temperature Topt(°C)
10
2.82
2.80
2.78
2.76
2.74
-40
-15
10
35
60
Temperature Topt(°C)
Temperature Topt(°C)
3.92
-40
2.84
85
85
R1124N
5) Supply Current vs. Temperature
R1124N281x
90
80
80
Supply Current ISS(µA)
Supply Current ISS(µA)
R1124N151x
90
70
60
50
40
30
20
70
60
50
40
30
20
10
10
0
-40
-15
10
35
60
0
-40
85
-15
10
35
60
85
Temperature Topt(°C)
Temperature Topt(°C)
R1124N401x
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
R1124N151x
R1124N161x
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)
11
R1124N
R1124N171x
R1124N181x
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
R1124N211x
125
150
0.40
85°C
25°C
-40°C
0.35
0.30
Dropout Voltage VDIF(V)
Dropout Voltage VDIF(V)
100
R1124N281x
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
Output Current IOUT(mA)
R1124N401x
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)
0.40
Dropout Voltage VDIF(V)
75
Output Current IOUT(mA)
Output Current IOUT(mA)
12
50
150
150
R1124N
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)
R1124N281x
90
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
70
60
50
40
30
f=1kHz
f=10kHz
f=100kHz
3.0
3.1
3.2
3.3
3.2
Input Voltage VIN(V)
3.3
Ripple 0.5Vp-p, IOUT=30mA
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
80
0
2.9
3.1
R1124N281x
Ripple 0.2Vp-p, IOUT=30mA
10
3.0
Input Voltage VIN(V)
R1124N281x
20
f=1kHz
f=10kHz
f=100kHz
20
Input Voltage VIN(V)
90
Ripple 0.5Vp-p, IOUT=1mA
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
R1124N281x
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)
13
R1124N
R1124N281x
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)
R1124N281x
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)
R1124N151x
90
80
70
60
50
40
30
20
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
0
0.1
1
10
VIN=2.5VDC+0.5Vp-p,
COUT=Ceramic 2.2µF
90
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
R1124N151x
VIN=2.5VDC+0.5Vp-p,
COUT=Ceramic 1.0µF
80
70
60
50
40
30
20
10
0
0.1
100
IOUT=1mA
IOUT=30mA
IOUT=50mA
Frequency f(kHz)
1
R1124N281x
80
80
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
90
70
60
50
40
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
0
0.1
1
10
Frequency f(kHz)
14
VIN=3.8VDC+0.5Vp-p,
COUT=Ceramic 1.0µF
90
20
100
R1124N281x
VIN=3.8VDC+0.5Vp-p,
COUT=Ceramic 0.47µF
30
10
Frequency f(kHz)
100
70
60
50
40
30
20
IOUT=1mA
IOUT=30mA
IOUT=50mA
10
0
0.1
1
10
Frequency f(kHz)
100
R1124N
R1124N401x
R1124N401x
90
90
80
80
Ripple Rejection RR(dB)
Ripple Rejection RR(dB)
VIN=5.0VDC+0.5Vp-p,
COUT=Ceramic 0.47µF
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
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)
R1124N151x
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
4
2.82
3
2.81
2
Output Voltage
2.80
Input Voltage VIN(V)
Output Voltage VOUT(V)
R1124N281x
2.85
1
2.79
0
10
20
30
40
50
60
70
80
90
0
100
Time T(µs)
15
R1124N
11) Load Transient Response (tr=tf=0.5µs, CIN=Ceramic 1.0µF)
R1124N151x
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)
R1124N151x
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)
R1124N281x
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)
16
150
12
14
16
18
20
Output Current IOUT(mA)
VIN=3.8V, COUT=Ceramic 0.47µF
3.05
R1124N
R1124N281x
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)
R1124N281x
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)
R1124N151D (VIN=2.5V, CIN=Ceramic 1.0µA, COUT=Ceramic 1.0µF)
4
50 100 150 200 250 300 350 400 450
Time T(µs)
17
R1124N
8
3
7
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
VIN
IOUT= 0mA
IOUT= 30mA
IOUT= 150mA
3
2
1
0
-20 0
25
4
0
-1
Time T(µs)
Output Voltage VOUT(V)
4
CE Input Voltage VCE(V)
8
Output Voltage VOUT(V)
CE Input Voltage VCE(V)
R1124N281D (VIN=3.8V, CIN=Ceramic 0.47µA, COUT=Ceramic 0.47µF)
4
20 40 60 80 100 120 140 160 180
Time T(µs)
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)
18
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)
8
CE Input Voltage VCE(V)
14
Output Voltage VOUT(V)
CE Input Voltage VCE(V)
R1124N401D (VIN=5.0V, CIN=Ceramic 0.47µA, COUT=Ceramic 0.47µF)
8
R1124N
TECHNICAL NOTES
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.
R1124Nxx1B
S.A.
Spectrum
Analyzer
VIN
Ceramic
Cap.
VIN
GND
ESR
IOUT
Measuring Circuit for white noise; R1124Nxx1B
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.)
<Measurement conditions>
(1) VIN=VOUT+1V
(2) Frequency Band: 10Hz to 2MHz
(3) Temperature: −40°C to 85°C
R1124N151x
R1124N161x
CIN=Ceramic 0.47µA,
COUT=Ceramic 0.68µF
100
100
10
10
ESR (Ω)
ESR (Ω)
CIN=Ceramic 1.0µA,
COUT=Ceramic 1.0µF
1
0.1
0.01
0
1
0.1
30
60
90
120
Load Current IOUT (mA)
150
0.01
0
30
60
90
120
150
Load Current IOUT (mA)
19
R1124N
R1124N211x
R1124N281x
CIN=Ceramic 0.47µA,
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)
20
CIN=Ceramic 0.47µA,
COUT=Ceramic 0.47µF
150
0.01
0
30
60
90
120
Load Current IOUT (mA)
150
PACKAGE INFORMATION
•
PE-SOT-23-5-0510
SOT-23-5 (SC-74A)
Unit: mm
PACKAGE DIMENSIONS
2.9±0.2
+0.2
1.1 −0.1
1.9±0.2
(0.95)
(0.95)
2
0 to 0.1
3
+0.1
0.15 −0.05
0.4±0.1
0.2 MIN.
1
2.8±0.3
4
+0.2
1.6 −0.1
5
0.8±0.1
3.2
3.5±0.05
2.0±0.05
3.3
4.0±0.1
2.0MAX.
∅1.1±0.1
TR
User Direction of Feed
TAPING REEL DIMENSIONS
(1reel=3000pcs)
2±0.5
21±0.8
∅60 +1
0
∅180 0
−1.5
∅ 13±0.2
11.4±1.0
9.0±0.3
8.0±0.3
4.0±0.1
+0.1
φ1.5 0
0.3±0.1
1.75±0.1
TAPING SPECIFICATION
PACKAGE INFORMATION
PE-SOT-23-5-0510
POWER DISSIPATION (SOT-23-5)
This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board.
This specification is based on the measurement at the condition below:
(Power Dissipation (SOT-23-5) is substitution of SOT-23-6.)
Measurement Conditions
Standard Land Pattern
Environment
Mounting on Board (Wind velocity=0m/s)
Board Material
Glass cloth epoxy plactic (Double sided)
Board Dimensions
40mm × 40mm × 1.6mm
Copper Ratio
Top side : Approx. 50% , Back side : Approx. 50%
Through-hole
φ0.5mm × 44pcs
Measurement Result
(Topt=25°C,Tjmax=125°C)
Standard Land Pattern
Free Air
Power Dissipation
420mW
250mW
Thermal Resistance
θja=(125−25°C)/0.42W=263°C/W
400°C/W
500
40
On Board
420
400
Free Air
300
250
40
Power Dissipation PD(mW)
600
200
100
0
0
25
50
75 85 100
Ambient Temperature (°C)
125
150
Power Dissipation
Measurement Board Pattern
IC Mount Area Unit : mm
RECOMMENDED LAND PATTERN
0.7 MAX.
1.0
2.4
0.95 0.95
1.9
(Unit: mm)
MARK INFORMATION
ME-R1124N-0310
R1124N SERIES MARK SPECIFICATION
• SOT-23-5 (SC-74A)
1
•
2
3
4
1
,
2
4
,
5
,
3
: Product Code (refer to Part Number vs. Product Code)
: Lot Number
5
Part Number vs. Product Code
Part Number
Product Code
Part Number
Product Code
Part Number
Product Code
1
2
3
1
2
3
1
2
3
R1124N151A
7
1
5
R1124N151B
8
1
5
R1124N151D
9
1
5
R1124N161A
7
1
6
R1124N161B
8
1
6
R1124N161D
9
1
6
R1124N171A
7
1
7
R1124N171B
8
1
7
R1124N171D
9
1
7
R1124N181A
7
1
8
R1124N181B
8
1
8
R1124N181D
9
1
8
R1124N191A
7
1
9
R1124N191B
8
1
9
R1124N191D
9
1
9
R1124N201A
7
2
0
R1124N201B
8
2
0
R1124N201D
9
2
0
R1124N211A
7
2
1
R1124N211B
8
2
1
R1124N211D
9
2
1
R1124N221A
7
2
2
R1124N221B
8
2
2
R1124N221D
9
2
2
R1124N231A
7
2
3
R1124N231B
8
2
3
R1124N231D
9
2
3
R1124N241A
7
2
4
R1124N241B
8
2
4
R1124N241D
9
2
4
R1124N251A
7
2
5
R1124N251B
8
2
5
R1124N251D
9
2
5
R1124N261A
7
2
6
R1124N261B
8
2
6
R1124N261D
9
2
6
R1124N271A
7
2
7
R1124N271B
8
2
7
R1124N271D
9
2
7
R1124N281A
7
2
8
R1124N281B
8
2
8
R1124N281D
9
2
8
R1124N291A
7
2
9
R1124N291B
8
2
9
R1124N291D
9
2
9
R1124N301A
7
3
0
R1124N301B
8
3
0
R1124N301D
9
3
0
R1124N311A
7
3
1
R1124N311B
8
3
1
R1124N311D
9
3
1
R1124N321A
7
3
2
R1124N321B
8
3
2
R1124N321D
9
3
2
R1124N331A
7
3
3
R1124N331B
8
3
3
R1124N331D
9
3
3
R1124N341A
7
3
4
R1124N341B
8
3
4
R1124N341D
9
3
4
R1124N351A
7
3
5
R1124N351B
8
3
5
R1124N351D
9
3
5
R1124N361A
7
3
6
R1124N361B
8
3
6
R1124N361D
9
3
6
R1124N371A
7
3
7
R1124N371B
8
3
7
R1124N371D
9
3
7
R1124N381A
7
3
8
R1124N381B
8
3
8
R1124N381D
9
3
8
R1124N391A
7
3
9
R1124N391B
8
3
9
R1124N391D
9
3
9
R1124N401A
7
4
0
R1124N401B
8
4
0
R1124N401D
9
4
0
R1124N281A5
7
4
1
R1124N281B5
8
4
1
R1124N281D5
9
4
1