R1115Z291D-TR-F [RICOH]
Fixed Positive LDO Regulator, 2.9V, 0.35V Dropout, CMOS, PBGA4, WLCSP-4;
| 型号： | R1115Z291D-TR-F |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Fixed Positive LDO Regulator, 2.9V, 0.35V Dropout, CMOS, PBGA4, WLCSP-4 输出元件 调节器 |
| 文件： | 总23页 (文件大小：318K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R1115Z SERIES
Non-promotion
LOW NOISE 150mA LDO Regulator
OUTLINE
NO.EA-107-130410
The R1115Z Series are CMOS-based voltage regulator ICs with 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 R1115Z 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 WLCSP-4-P4,
therefore high density mounting of the ICs on boards is possible.
FEATURES
• Supply Current..................................................................... Typ. 75μA
• Standby Current................................................................... Typ. 0.1μA
• Output Voltage Range...........................................................1.5V to 4.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Dropout Voltage ................................................................... Typ. 0.22V (IOUT=150mA, VOUT=3.0V)
• Ripple Rejection................................................................... Typ. 70dB (f=1kHz)
Typ. 60dB (f=10kHz)
• Temperature-Drift Coefficient of Output Voltage.................. Typ. ±100ppm/°C
• Line Regulation.................................................................... Typ. 0.02%/V
• Output Voltage Accuracy...................................................... ±2.0%
•
Package ............................................................................. WLCSP-4-P4
• 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
R1115Z
Non-promotion
BLOCK DIAGRAMS
R1115Zxx1A
R1115Zxx1B
VDD
VDD
VOUT
V
OUT
Vref
Vref
Current Limit
Current Limit
CE
CE
GND
GND
R1115Zxx1D
VDD
VOUT
Vref
Current Limit
CE
GND
2
R1115Z
Non-promotion
SELECTION GUIDE
The output voltage, auto discharge function, etc. for the ICs can be selected at the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
WLCSP-4-P4
3,000 pcs
Yes
Yes
R1115Zxx1∗-TR-F
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
The products scheduled to be discontinued : "Non-promotion"
These products will be discontinued in the future. We advise you to select other products.
PIN CONFIGURATION
z WLCSP-4-P4
Mark Side
Bump Side
4
3
3
4
1
2
2
1
PIN DESCRIPTION
• R1115Z
Pin No.
Symbol
Description
1
2
3
4
VDD
Input Pin
Chip Enable Pin
Ground Pin
Output pin
CE
or CE
GND
VOUT
3
R1115Z
Non-promotion
ABSOLUTE MAXIMUM RATING
Symbol
VIN
Item
Rating
6.5
Unit
V
Input Voltage
VCE
6.5
V
CE
Input Voltage (
Output Voltage
Output Current
or CE Pin)
VOUT
IOUT
V
−0.3 to VIN+0.3
200
mA
mW
°C
°C
Power Dissipation∗
PD
600
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
−40 to 85
−55 to 125
*) 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.
4
R1115Z
Non-promotion
ELECTRICAL CHARACTERISTICS
• R1115Zxx1A
Topt=25°C
Symbol
VOUT
Item
Output Voltage
Output Current
Load Regulation
Conditions
Min.
×0.98
150
Typ.
Max.
Unit
VIN=Set VOUT+1V
V
×1.02
1mA
IOUT
30mA
=
=
IOUT
mA
mV
VIN−VOUT=1.0V
VIN=Set VOUT+1V
22
40
ΔVOUT/ΔIOUT
1mA
IOUT
150mA
=
=
0.38
0.36
0.34
0.32
0.28
0.22
75
0.70
0.65
0.60
0.55
0.50
0.35
95
VOUT = 1.5V
VOUT = 1.6V
VOUT = 1.7V
VDIF
Dropout Voltage
V
IOUT=150mA
1.8V
2.1V
2.8V
VOUT
VOUT
VOUT
2.0V
2.7V
4.0V
=
=
=
=
=
=
ISS
Supply Current
Standby Current
VIN=Set VOUT+1V, IOUT=0mA
μA
μA
VIN=Set VOUT+1V
VCE=VDD
Istandby
0.1
1.0
IOUT=30mA
VOUT > 1.6V,
Set VOUT+0.5V VIN 6.0V
Line Regulation
0.02
0.10
%/V
ΔVOUT/ΔVIN
=
(VOUT
1.6V, 2.2V ≤ VIN 6.0V)
=
=
Ripple 0.5Vp−p
IOUT=30mA
70
60
f=1kHz
VOUT>1.7V,
RR
Ripple Rejection
Input Voltage
dB
V
VIN−VOUT=1.0V
(VOUT 1.7V,
=
f=10kHz
VIN−VOUT=1.2V)
VIN
2.0
6.0
ppm
/°C
ΔVOUT/
ΔTopt
Output Voltage
Temperature Coefficient
IOUT=30mA
±100
−40°C Topt 85°C
=
=
ISC
RPU
VCEH
VCEL
en
Short Current Limit
40
mA
MΩ
V
VOUT=0V
0.7
1.5
0
2.0
8.0
6.0
0.3
CE
CE
CE
Pull-up Resistance
Input Voltage "H"
Input Voltage "L"
V
Output Noise
30
BW =10Hz to 100kHz
μVrms
5
R1115Z
Non-promotion
• R1115Zxx1B/D
Topt=25°C
Symbol
Item
Conditions
Min.
×0.98
150
Typ.
Max.
Unit
VIN=Set VOUT+1V
VOUT
IOUT
Output Voltage
Output Current
Load Regulation
V
×1.02
1mA
IOUT
30mA
=
mA
mV
VIN−VOUT=1.0V
VIN=Set VOUT+1V
22
40
ΔVOUT/ΔIOUT
1mA
IOUT
150mA
=
0.38
0.36
0.34
0.32
0.28
0.22
75
0.70
0.65
0.60
0.55
0.50
0.35
95
VOUT = 1.5V
VOUT = 1.6V
VOUT = 1.7V
VDIF
Dropout Voltage
V
IOUT=150mA
1.8V
2.1V
2.8V
VOUT
VOUT
VOUT
2.0V
2.7V
4.0V
=
=
=
ISS
Supply Current
Standby Current
VIN=Set VOUT+1V, IOUT=0mA
VIN=Set VOUT+1V, VCE=GND
μA
μA
Istandby
0.1
1.0
IOUT=30mA
VOUT>1.6V,
Set VOUT+0.5V VIN 6.0V
(VOUT 1.6V, 2.2V VIN 6.0V)
Line Regulation
0.02
0.10
%/V
ΔVOUT/ΔVIN
=
=
Ripple 0.5Vp−p
IOUT=30mA
VOUT>1.7V,
VIN−VOUT=1.0V
(VOUT 1.7V,
VIN−VOUT=1.2V)
70
60
f=1kHz
RR
Ripple Rejection
Input Voltage
dB
V
f=10kHz
VIN
2.0
6.0
ppm
/°C
ΔVOUT/
ΔTopt
Output Voltage
Temperature Coefficient
IOUT=30mA
−40°C Topt 85°C
±100
ISC
RPD
VCEH
VCEL
en
Short Current Limit
CE Pull-down Resistance
CE Input Voltage "H"
CE Input Voltage "L"
Output Noise
40
mA
MΩ
V
VOUT=0V
0.7
1.5
0
2.0
8.0
6.0
0.3
V
30
60
BW=10Hz to 100kHz
VCE=0V
μVrms
On Resistance of Nch for
auto discharge
(Only for D version)
RLOW
Ω
6
R1115Z
Non-promotion
TYPICAL APPLICATIONS
VDD
VDD
V
OUT
V
OUT
V
OUT
V
OUT
R1115Zxx1A
Series
R1115Zxx1B/D
Series
C1
C2
C1
C2
GND
CE GND
CE
(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
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 C2. Recommendation value is as follows:
If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be unstable.
Evaluate your circuit with considering frequency characteristics.
Output Voltage
C2 recommendation value
<
VOUT
2.4V
1.0μF or more
=
<
2.5
VOUT
0.47μF or more
=
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor C1 with a capacitance value as much as 1μF or more between VDD and GND pin, and as
close as possible to the pins.
Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring
as short as possible.
7
R1115Z
Non-promotion
TEST CIRCUITS
V
DD
V
OUT
R1115Zxx1B/D
Series
V
C1
C2
I
OUT
V
OUT
CE
GND
C1=Ceramic 1.0μF
C2=Ceramic 1.0μF
Fig.1 Standard test Circuit
V
DD
V
OUT
V
OUT
R1115Zxx1B/D
Series
A
C1
C2
I
SS
CE GND
C1=Ceramic 1.0μF
C2=Ceramic 1.0μF
Fig.2 Supply Current Test Circuit
Pulse
Generator
VDD
VOUT
R1115Zxx1B/D
Series
C2
IOUT
P.G.
CE GND
C2=Ceramic 1.0μF
Fig.3 Ripple Rejection, Line Transient Response Test Circuit
8
R1115Z
Non-promotion
V
OUT
V
DD
V
OUT
R1115Zxx1B/D
Series
C1
C2
CE
GND
I
OUTa
I
OUTb
C1=Ceramic 1.0μF
C2=Ceramic 1.0μF
Fig.4 Load Transient Response Test Circuit
9
R1115Z
Non-promotion
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (Topt=25°C)
R1115Z151x
R1115Z281x
3.0
2.5
2.0
1.5
1.6
1.4
V
IN=4.8V
1.8V
1.2
1.0
0.8
0.6
3.1V
300
1.0
0.5
0.0
V
IN=3.5V
0.4
0.2
0.0
3.8V
200
3.5V
2.5V
2.0V
200
0
100
400
0
100
300
400
Output Current IOUT(mA)
Output Current IOUT(mA)
R1115Z401x
4.5
4.0
3.5
3.0
VIN=6.0V
2.5
2.0
1.5
4.3V
4.5V
5.0V
1.0
0.5
0.0
0
100
200
300
400
Output Current IOUT(mA)
2) Output Voltage vs. Input Voltage (Topt=25°C)
R1115Z151x
R1115Z281x
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.7
1.6
1.5
1.4
1.3
I
I
I
OUT=1mA
I
I
I
OUT=1mA
1.2
1.1
1.0
OUT=30mA
OUT=50mA
OUT=30mA
OUT=50mA
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
10
R1115Z
Non-promotion
R1115Z401x
4.2
4.0
3.8
I
I
I
OUT=1mA
OUT=30mA
OUT=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)
R1115Z151x
R1115Z281x
90
90
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
R1115Z401x
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
Input Voltage VIN(V)
11
R1115Z
Non-promotion
4) Output Voltage vs. Temperature
R1115Z151x
R1115Z281x
2.86
2.84
2.82
2.80
2.78
2.76
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
2.74
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(°C)
Temperature Topt(°C)
R1115Z401x
4.08
4.06
4.04
4.02
4.00
3.98
3.96
3.94
3.92
-40
-15
10
35
60
85
Temperature Topt(°C)
5) Supply Current vs. Temperature
R1115Z151x
R1115Z281x
90
90
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(°C)
Temperature Topt(°C)
12
R1115Z
Non-promotion
R1115Z401x
90
80
70
60
50
40
30
20
10
0
-40
-15
10
35
60
85
Temperature Topt(°C)
6) Dropout Voltage vs. Output Current
R1115Z151x
R1115Z161x
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.6
85°C
25°C
-40°C
85°C
0.5
0.4
0.3
0.2
0.1
0.0
25°C
-40°C
0
25
50
75
100 125 150
0
25
50
75
100 125 150
Output Current IOUT(mA)
Output Current IOUT(mA)
R1115Z171x
R1115Z181x
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
85°C
25°C
-40°C
85°C
25°C
-40°C
0
25
50
75
100 125 150
0
25
50
75
100 125 150
Output Current IOUT(mA)
Output Current IOUT(mA)
13
R1115Z
Non-promotion
R1115Z211x
R1115Z281x
0.40
0.35
0.30
0.25
0.20
0.40
0.35
0.30
0.25
0.20
85°C
25°C
-40°C
85°C
25°C
-40°C
0.15
0.10
0.05
0.15
0.10
0.05
0.00
0.00
0
0
25
50
75
100 125 150
25
50
75
100 125 150
Output Current IOUT(mA)
Output Current IOUT(mA)
R1115Z401x
0.40
0.35
0.30
0.25
0.20
85°C
25°C
-40°C
0.15
0.10
0.05
0.00
0
25
50
75
100 125 150
Output Current IOUT(mA)
7) Dropout Voltage vs. Set Output Voltage (Topt=25°C)
0.60
10mA
30mA
0.50
50mA
150mA
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)
14
R1115Z
Non-promotion
8) Ripple Rejection vs. Input Bias Voltage (Topt=25°C, CIN=none, COUT=ceramic 0.47μF)
R1115Z281x R1115Z281x
Ripple 0.2Vp-p, IOUT=1mA
Ripple 0.5Vp-p, IOUT=1mA
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
f=1kHz
f=10kHz
f=100kHz
f=1kHz
f=10kHz
f=100kHz
2.9
3.0
3.1
3.2
3.3
2.9
3.0
3.1
3.2
3.3
Input Voltage VIN(V)
Input Voltage VIN(V)
R1115Z281x
R1115Z281x
Ripple 0.2Vp-p, IOUT=30mA
Ripple 0.5Vp-p, IOUT=30mA
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
f=1kHz
f=10kHz
f=100kHz
f=1kHz
f=10kHz
f=100kHz
2.9
3.0
3.1
3.2
3.3
2.9
3.0
3.1
3.2
3.3
Input Voltage VIN(V)
Input Voltage VIN(V)
R1115Z281x
R1115Z281x
Ripple 0.2Vp-p, IOUT=50mA
Ripple 0.5Vp-p, IOUT=50mA
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
f=1kHz
f=10kHz
f=100kHz
f=1kHz
f=10kHz
f=100kHz
2.9
3.0
3.1
3.2
3.3
2.9
3.0
3.1
3.2
3.3
Input Voltage VIN(V)
Input Voltage VIN(V)
15
R1115Z
Non-promotion
9) Ripple Rejection vs. Frequency (CIN=none)
R1115Z151x
R1115Z151x
V
IN=2.5VDC+0.5Vp-p,
V
IN=2.5VDC+0.5Vp-p,
C
OUT=Ceramic 1.0
μ
F
C
OUT=Ceramic 2.2μF
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHz)
Frequency f(kHz)
R1115Z281x
R1115Z281x
V
IN=3.8VDC+0.5Vp-p,
V
IN=3.8VDC+0.5Vp-p,
C
OUT=Ceramic 0.47
μ
F
C
OUT=Ceramic 1.0
μF
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHz)
Frequency f(kHz)
R1115Z401x
R1115Z401x
V
IN=5.0VDC+0.5Vp-p,
V
IN=5.0VDC+0.5Vp-p,
C
OUT=Ceramic 0.47
μ
F
C
OUT=Ceramic 1.0
μ
F
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
0.1
1
10
100
0.1
1
10
100
Frequency f(kHz)
Frequency f(kHz)
16
R1115Z
Non-promotion
10) Input Transient Response (IOUT=30mA, CIN=none, tr=tf=5μs, COUT=Ceramic 0.47μF)
R1115Z151x
1.55
4
3
2
1
0
1.54
1.53
1.52
1.51
1.50
1.49
Input Voltage
Output Voltage
0
10
20
30
40
50
60
70
80
90
100
Time T(μs)
R1115Z281x
2.85
2.84
2.83
2.82
2.81
2.80
2.79
6
5
4
3
Input Voltage
2
1
0
Output Voltage
0
10
20
30
40
50
60
70
80
90
100
Time T(μs)
11) Load Transient Response (tr=tf=0.5μs, CIN=Ceramic 1.0μF)
R1115Z151x
V
IN=2.5V, COUT=Ceramic 1.0
Output Current
μ
F
1.75
1.70
1.65
1.60
1.55
1.50
1.45
150
100
50
0
Output Voltage
0
2
4
6
8
10
12
14
16
18
20
Time T(μs)
17
R1115Z
Non-promotion
R1115Z151x
V
IN=2.5V, COUT=Ceramic 2.2
Output Current
μ
μ
μ
F
1.75
150
100
50
1.70
1.65
1.60
1.55
1.50
1.45
0
Output Voltage
0
0
0
2
2
2
4
4
4
6
6
6
8
8
8
10
12
14
16
18
20
F
Time T(μs)
R1115Z281x
V
IN=3.8V, COUT=Ceramic 0.47
Output Current
3.05
3.00
2.95
2.90
2.85
2.80
2.75
150
100
50
0
Output Voltage
10
12
14
16
18
20
F
Time T(μs)
R1115Z281x
V
IN=3.8V, COUT=Ceramic 1.0
Output Current
3.05
3.00
2.95
2.90
2.85
2.80
2.75
150
100
50
0
Output Voltage
10
12
14
16
18
20
Time T(μs)
18
R1115Z
Non-promotion
R1115Z281x
V
IN=3.8V, COUT=Ceramic 2.2
Output Current
μ
F
3.05
3.00
2.95
2.90
2.85
2.80
2.75
150
100
50
0
Output Voltage
0
2
4
6
8
10
12
14
16
18
20
Time T(μs)
12) Turn-on/off speed with CE pin (D version)
R1115Z151D (VIN=2.5V, CIN=Ceramic 1.0μF, COUT=Ceramic 1.0μF)
4
3
2
1
0
6
4
3
2
1
0
6
5
5
4
3
2
1
0
V
IN
4
3
2
1
0
I
I
I
OUT= 0mA
OUT= 30mA
OUT= 150mA
V
IN
I
I
I
OUT= 0mA
OUT= 30mA
OUT= 150mA
-5
0
5
10
15
20
25
-50
0
50 100 150200250 300 350 400450
Time T(μs)
Time T(μs)
R1115Z281D (VIN=3.8V, CIN=Ceramic 0.47μF, COUT=Ceramic 0.47μF)
4
3
8
4
8
7
7
3
2
V
IN
2
6
5
4
3
2
1
0
6
5
4
3
2
1
0
I
I
I
OUT= 0mA
OUT= 30mA
OUT= 150mA
1
1
0
0
V
IN
-1
-1
I
I
I
OUT= 0mA
OUT= 30mA
OUT= 150mA
-5
0
5
10
15
20
25
-20
0
20 40 60 80 100 120 140160180
Time T(μs)
Time T(μs)
19
R1115Z
Non-promotion
R1115Z401D (VIN=5.0V, CIN=Ceramic 0.47μF, COUT=Ceramic 0.47μF)
8
14
12
10
8
8
14
12
10
8
6
4
6
4
V
IN
I
I
I
OUT= 0mA
OUT= 30mA
OUT= 150mA
V
IN
2
2
I
I
I
OUT= 0mA
OUT= 30mA
OUT= 150mA
0
0
6
6
-2
4
4
-2
2
2
0
0
-2
160
180
-2
-20
0
20 40 60 80 100120140
-5
0
5
10
15
20
25
Time T(μs)
Time T(μs)
20
R1115Z
Non-promotion
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.
R1115Zxx1B/D
Spectrum
Analyzer
S.A.
V
IN
Ceramic
Cap.
GND
ESR
VIN
I
OUT
Measuring Circuit for white noise; R1115Zxx1B/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.)
<Measurement conditions>
(1) VIN=VOUT+1V
(2) Frequency Band: 10Hz to 2MHz
(3) Temperature: −40°C to 25°C
R1115Z151x
R1115Z161x
C
IN=Ceramic 1.0
μ
F,
μ
C
IN=Ceramic 0.47
μ
F,
μ
C
OUT=Ceramic 1.0
F
C
OUT=Ceramic 0.68
F
100
10
100
10
1
1
0.1
0.01
0.1
0.01
0
30
60
90
120
150
0
30
60
90
120
150
Load Current IOUT (mA)
Load Current IOUT (mA)
21
R1115Z
Non-promotion
R1115Z211x
R1115Z281x
C
IN=Ceramic 0.47
μ
F,
μ
C
IN=Ceramic 0.47
μ
F,
μ
C
OUT=Ceramic 0.47
F
C
OUT=Ceramic 0.47
F
100
10
1
100
10
1
0.1
0.1
0.01
0.01
0
30
60
90
120
150
0
30
60
90
120
150
Load Current IOUT (mA)
Load Current IOUT (mA)
22
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, firecontainment
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.Please contact Ricoh sales representatives should you have any questions or comments
concerning the products or the technical information.
For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material.
After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.
Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are
also Antimony Free.)
Halogen Free
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Electronic Devices Company
http://www.ricoh.com/LSI/
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