R1112N191B-TR [RICOH]
Fixed Positive LDO Regulator, 1.9V, 0.35V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN;
| 型号： | R1112N191B-TR |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Fixed Positive LDO Regulator, 1.9V, 0.35V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN 光电二极管 |
| 文件： | 总21页 (文件大小：231K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LOW NOISE 150mA LDO REGULATOR
NO. EA-059-0204
5ꢀꢀꢀꢁ1ꢂ6(5,(6
OUTLINE
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APPLICATIONS
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1
R1112N
BLOCK DIAGRAM
R1112Nxx1A
R1112Nxx1B
1
5
1
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V
DD
VOUT
V
DD
VOUT
Vref
Vref
Current Limit
Current Limit
CE
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GND
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SELECTION GUIDE
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2
R1112N
PIN CONFIGURATION
SOT-23-5
5
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CE
(mark side)
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2
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PIN DESCRIPTION
Pin No.
Symbol
Description
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Unit
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ELECTRICAL CHARACTERISTICS
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Symbol
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Item
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Conditions
Min.
Typ.
Max.
Unit
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5
R1112N
OPERATION
R1112Nxx1A
R1112Nxx1B
1
5
1
5
VDD
VOUT
VDD
VOUT
R1
R1
Vref
Vref
R2
R2
Current Limit
Current Limit
CE
GND
CE
3
GND
3
2
2
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TECHNICAL NOTES
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SRVVLEOHꢂ
6
R1112N
TEST CIRCUITS
CE
CE
3
3
V
DD
VOUT
V
DD
VOUT
IN
OUT
IN
OUT
1
5
1
5
R1112Nxx1B Series
R1112Nxx1B Series
I
OUT
ISS
2
2
GND
GND
2.2µF
2.2µF
Fig.1 Standard test Circuit
Fig.2 Supply Current Test Circuit
CE
3
CE
3
V
DD
VOUT
V
DD
VOUT
IN
OUT
IN
OUT
1
5
1
5
R1112Nxx1B Series
R1112Nxx1B Series
I
OUT
P. G
2
2
GND
GND
2.2µF
I1 I2
Fig.3 Ripple Rejection, Line Transient Response
Test Circuit
Fig.4 Load Transient Response Test Circuit
7
R1112N
TYPICAL APPLICATION
CE
CE
IN
V
DD
VOUT
OUT IN
V
DD
VOUT
OUT
R1112Nxx1A
Series
R1112Nxx1B
Series
GND
GND
Cap.
Cap.
Cap.
Cap.
/([WHUQDOꢆ&RPSRQHQWVꢊ
2XWSXWꢆ&DSDFLWRUꢏ &HUDPLFꢆꢁꢂꢁµ)ꢆ/6HWꢆ2XWSXWꢆ9ROWDJHꢆLQꢆWKHꢆUDQJHꢆIURPꢆꢁꢂꢉꢆWRꢆꢉꢂꢄ9ꢊ
&HUDPLFꢆꢒꢂꢓµ)ꢆ/6HWꢆ2XWSXWꢆ9ROWDJHꢆLQꢆWKHꢆUDQJHꢆIURPꢆꢀꢂꢉꢆWRꢆꢁꢂꢉ9ꢊ
,QSXWꢆ&DSDFLWRUꢏ &HUDPLFꢆꢁꢂꢁµ)
8
R1112N
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R11x2N151B
R11x2N201B
2.5
2
1.8
1.6
1.4
VIN=2.0V
VIN=2.5V
VIN=3.5V
1.2
1
V
IN=2.3V
IN=2.5V
IN=3.0V
IN=4.0V
1.5
1
V
V
V
0.8
0.6
0.4
0.5
0
0.2
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current IOUT(mA)
Output Current IOUT(mA)
R11x2N301B
R11x2N401B
3.5
3
5
4
3
2
1
0
2.5
2
V
IN=3.3V
IN=3.5V
IN=4.0V
IN=5.0V
V
IN=4.3V
IN=4.5V
IN=5.0V
IN=6.0V
V
V
V
V
V
V
1.5
1
0.5
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current IOUT(mA)
Output Current IOUT(mA)
R11x2N501B
6
5
4
3
2
1
0
V
IN=5.3V
IN=5.5V
IN=6.0V
IN=7.0V
V
V
V
0
100
200
300
400
500
Output Current IOUT(mA)
9
R1112N
2) Output Voltage vs. Input Voltage
R11x2N151B
R11x2N201B
1.600
2.100
2.000
1.900
1.800
1.700
1.600
1.500
1.500
1.400
1.300
1.200
1.100
1.000
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
1
2
2
2
3
4
5
6
7
7
7
1
2
3
4
5
6
7
Input Voltage VIN(V)
Input Voltage VIN(V)
R11x2N301B
R11x2N401B
3.100
3.000
2.900
2.800
2.700
2.600
2.500
4.500
4.000
3.500
3.000
2.500
I
I
I
OUT=1mA
OUT=30mA
OUT=50mA
I
OUT=1mA
OUT=30mA
OUT=50mA
I
I
3
4
5
6
2
3
4
5
6
7
Input Voltage VIN(V)
Input Voltage VIN(V)
R11x2N501B
5.500
5.000
4.500
4.000
3.500
3.000
2.500
I
OUT=1mA
OUT=30mA
OUT=50mA
I
I
3
4
5
6
Input Voltage VIN(V)
10
R1112N
3) Dropout Voltage vs. Output Current
R11x2N151B
R11x2N201B
0.600
0.600
0.500
0.400
0.300
0.200
0.100
0.000
Topt=-40°C
Topt=25°C
Topt=85°C
Topt=-40°C
Topt=25°C
Topt=85°C
0.500
0.400
0.300
0.200
0.100
0.000
0
0
0
50
100
150
150
150
0
50
100
150
Output Current IOUT(mA)
Output Current IOUT(mA)
R11x2N301B
R11x2N401B
0.600
0.500
0.400
0.300
0.200
0.100
0.000
0.600
0.500
0.400
0.300
0.200
0.100
0.000
Topt=-40°C
Topt=25°C
Topt=85°C
Topt=-40°C
Topt=25°C
Topt=85°C
50
100
0
50
100
150
Output Current IOUT(mA)
Output Current IOUT(mA)
R11x2N501B
0.600
0.500
0.400
0.300
0.200
0.100
0.000
Topt=-40°C
Topt=25°C
Topt=85°C
50
100
Output Current IOUT(mA)
11
R1112N
4) Output Voltage vs. Temperature
R11x2N151A/B
R11x2N201B
V
IN=2.5V CIN=1µF
V
IN=3.0V CIN=1µF
C
OUT=2.2µF IOUT=30mA
C
OUT=2.2µF IOUT=30mA
1.53
1.52
2.10
2.08
2.06
2.04
2.02
2.00
1.98
1.96
1.94
1.92
1.90
1.51
1.50
1.49
1.48
1.47
-50
-50
-50
-25
-25
-25
0
25
100
50
75
-50
-25
0
25
100
50
75
Temperature Topt (°C)
Temperature Topt (°C)
R11x2N301A/B
R11x2N401A/B
V
IN=5.0V CIN=1µF
V
IN=4.0V CIN=1µF
COUT=2.2µF IOUT=30mA
C
OUT=2.2µF IOUT=30mA
4.08
4.06
4.04
4.02
3.06
3.04
3.02
3.00
2.98
4.00
3.98
3.96
3.94
2.96
2.94
3.92
-50
-25
0
25
100
0
25
100
50
75
50
75
Temperature Topt (°C)
Temperature Topt (°C)
R11x2N501A/B
VIN=6.0V CIN=1µF
COUT=2.2µF IOUT=30mA
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
0
25
100
50
75
Temperature Topt (°C)
12
R1112N
5) Supply Current vs. Input Voltage
R11x2N151B
R11x2N201B
120
120
100
100
80
60
40
20
0
80
60
40
20
0
1
1
1
2
2
2
3
4
5
6
6
6
7
7
7
1
2
3
4
5
6
7
Input Voltage VIN (V)
Input Voltage VIN (V)
R11x2N301B
R11x2N401B
120
100
120
100
80
60
40
20
0
80
60
40
20
0
3
4
5
1
2
3
4
5
6
7
Input Voltage VIN (V)
Input Voltage VIN (V)
R11x2N501B
120
100
80
60
40
20
0
3
4
5
Input Voltage VIN (V)
13
R1112N
6) Supply Current vs. Temperature
R11x2N151A/B
VIN=2.5V CIN=1µF
COUT=2.2µF
200
150
100
50
200
150
100
50
0
0
-50
-25
-25
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R11x2N301A/B
R11x2N401A/B
V
C
IN=4.0V CIN=1µF
OUT=2.2µF
V
IN=5.0V CIN=1µF
COUT=2.2µF
200
150
100
50
200
150
100
50
0
0
-50
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
R11x2N501A/B
V
C
IN=6.0V CIN=1µF
OUT=2.2µF
200
150
100
50
0
-50
0
25
50
75
100
Temperature Topt (°C)
14
R1112N
7) Ripple Rejection vs. Frequency
R11x2N151A/B
R11x2N201A/B
VIN=2.5V+0.5Vp-p
V
IN=3.0V+0.5Vp-p
COUT=2.2µF IOUT=30mA
COUT=2.2µF IOUT=30mA
90.00
80.00
90.00
80.00
70.00
60.00
50.00
40.00
30.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
20.00
10.00
0.00
0.1
0.1
0.1
1
10
100
0.1
1
10
100
Frequency Freq (kHz)
Frequency Freq (kHz)
R11x2N301A/B
R11x2N401A/B
V
IN=4.0V+0.5Vp-p
OUT=2.2µF IOUT=30mA
V
IN=5.0V+0.5Vp-p
OUT=2.2µF IOUT=30mA
C
C
90.00
80.00
90.00
80.00
70.00
60.00
50.00
40.00
30.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
20.00
10.00
0.00
1
10
100
0.1
1
10
100
Frequency Freq (kHz)
Frequency Freq (kHz)
R11x2N501A/B
V
IN=6.0V+0.5Vp-p
OUT=2.2µF IOUT=30mA
C
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
1
10
100
Frequency Freq (kHz)
15
R1112N
8) Ripple Rejection vs. Input Voltage (DC bias)
R11x2N301B
R11x2N301B
C
OUT=Ceramic 2.2µF
C
OUT=Ceramic 2.2µF
IOUT=1mA
IOUT=10mA
90.00
80.00
90.00
80.00
70.00
60.00
50.00
40.00
30.00
70.00
60.00
50.00
40.00
30.00
f=400Hz
f=1kHz
f=10kHz
f=400Hz
f=1kHz
f=10kHz
20.00
10.00
0.00
20.00
10.00
0.00
3.10
3.20
3.30
3.40
3.50
3.10
3.20
3.30
3.40
3.50
Input Voltage VIN (V)
Input Voltage VIN (V)
R11x2N301B
C
OUT=Ceramic 2.2µF
IOUT=50mA
90.00
80.00
70.00
60.00
50.00
40.00
30.00
f=400Hz
f=1kHz
f=10kHz
20.00
10.00
0.00
3.10
3.20
3.30
3.40
3.50
Input Voltage VIN (V)
9) Input Transient Response
7RSW ꢁꢉ°&
R11x2N151B
Tek Run : 2.50MS/s Average
VIN
1→
2→
9,1 ꢁꢂꢉ9↔ꢈꢂꢉ9
V
OUT
,287 ꢈꢄP$
&,1 QRQH
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
ChC1h1 1.00V
Ch2 20.0mV M20.0µs
16
R1112N
7RSW ꢁꢉ°&
R11x2N201B
Tek Run : 2.50MS/s Average
VIN
1→
2→
9,1 ꢈꢂꢄ9↔ꢒꢂꢄ9
V
OUT
,287 ꢈꢄP$
&,1 QRQH
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 1.00V
Ch2 20.0mV M20.0µs
7RSW ꢁꢉ°&
R11x2N301B
Tek Run : 2.50MS/s Average
VIN
1→
2→
9,1 ꢒꢂꢄ9↔ꢉꢂꢄ9
,287 ꢈꢄP$
&,1 QRQH
V
OUT
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 1.00V
Ch2 20.0mV M20.0µs
7RSW ꢁꢉ°&
R11x2N401B
Tek Run : 2.50MS/s Average
V
IN
1→
2→
9,1 ꢉꢂꢄ9↔ꢅꢂꢄ9
,287 ꢈꢄP$
&,1 QRQH
V
OUT
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 1.00V
Ch2 20.0mV M20.0µs
17
R1112N
7RSW ꢁꢉ°&
R11x2N501B
Tek Run : 2.50MS/s Average
VIN
1→
2→
9,1 ꢅꢂꢄ9↔ꢓꢂꢄ9
V
OUT
,287 ꢈꢄP$
&,1 QRQH
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 1.00V
Ch2 20.0mV M20.0µs
10) Load Transient Response
R11x2N151B
7RSW ꢁꢉ°&
Tek Run : 2.50MS/s Average
IOUT
1→
,287 ꢉꢄP$↔ꢀꢄꢄP$
9,1 ꢁꢂꢉ9
V
OUT
2→
&,1 ꢁꢂꢁµ)
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 500mV Ch2 50.0mV M20.0µs
7RSW ꢁꢉ°&
R11x2N201B
Tek Run : 2.50MS/s Average
IOUT
1→
,287 ꢉꢄP$↔ꢀꢄꢄP$
9,1 ꢈꢂꢄ9
V
OUT
2→
&,1 ꢁꢂꢁµ)
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 500mV Ch2 50.0mV M20.0µs
18
R1112N
7RSW ꢁꢉ°&
R11x2N301B
Tek Run : 2.50MS/s Average
IOUT
1→
,287 ꢉꢄP$↔ꢀꢄꢄP$
9,1 ꢒꢂꢄ9
V
OUT
2→
&,1 ꢁꢂꢁµ)
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 500mV Ch2 50.0mV M20.0µs
R11x2N401B
7RSW ꢁꢉ°&
Tek Run : 2.50MS/s Average
IOUT
1→
,287 ꢉꢄP$↔ꢀꢄꢄP$
9,1 ꢉꢂꢄ9
V
OUT
2→
&,1 ꢁꢂꢁµ)
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 500mV Ch2 50.0mV M20.0µs
7RSW ꢁꢉ°&
R11x2N501B
Tek Run : 2.50MS/s Average
IOUT
1→
,287 ꢉꢄP$↔ꢀꢄꢄP$
9,1 ꢅꢂꢄ9
V
OUT
2→
&,1 ꢁꢂꢁµ)
&287 ꢁꢂꢁµ)
WUꢃWI ꢉµV
Ch1 500mV Ch2 50.0mV M20.0µs
19
R1112N
TECHNICAL NOTES
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CE
3
1
V
OUT1
5
Ceramic
Cap.
R1112Nxx1B
S.A
Spectrum
ESR
V
IN
GND
Ceramic
Cap.
2
VIN
I
OUT
Analyzer
Measuring Circuit for white noise; R1112Nxx1B
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R11x2N151B
R11x2N151B
COUT=4.7µF,CIN=2.2µF
C
OUT=2.2µF,CIN=2.2µF
100
10
100
10
1
0.1
1
0.1
0.01
0.01
0
30
60
90
120
150
0
30
60
90
120
150
IOUT (mA)
IOUT (mA)
20
R1112N
R11x2N301B
R11x2N301B
C
OUT=2.2µF,CIN=2.2µF
C
OUT=4.7µF,CIN=2.2µF
100
10
100
10
1
0.1
1
0.1
0.01
0.01
0
30
60
90
120
150
0
30
60
90
120
150
IOUT (mA)
IOUT (mA)
21
相关型号：
R1112N19A-TR
Fixed Positive LDO Regulator, 1.9V, 0.35V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN
RICOH
R1112N19B-TL
Fixed Positive LDO Regulator, 1.9V, 0.35V Dropout, CMOS, PDSO5, MINI, PLASTIC, SOT-23, 5 PIN
RICOH
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