LOW NOISE 150mA LDO REGULATOR
NO. EA-060-0204
OUTLINE
!
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""
$
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"(&
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FEATURES
• -
.
" $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $//µ0
• "
"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/$µ0
• .1
2 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/$32+4//!0)2,
• 5#" $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $6/7+&4(58,
• .!
1
&&&"&2$$$$$$ $±//!9°
• % ".""$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/$/*:92
• 50
2 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ±$/:
• !;( $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ )*+"!,
• 2$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ "&/$2"
"&$*2
*$/2$
• 7""
+<0=>.?7=>5?,
• 7"@(
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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ "$)/!0
• ;"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ !
AA
• !
!!"$
APPLICATIONS
• ;
&
"B10;"&
$
• ;
&
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2"!
$
• ;
&
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1
R1122N
BLOCK DIAGRAM
R1122Nxx1A
3
R1122Nxx1B
3
1
VOUT
VDD
VOUT
_
_
+
+
Vref
Vref
GND
Current Limit
CE
1
VDD
2
4
GND
Current Limit
CE
4
2
SELECTION GUIDE
("""&
"
C
'$
""!""
"!
"=
←;
!
↑ ↑ ↑
Code
Contents
"2+2,=
"&/$2"
"&$*2*$/2$
1""&0=
0=>.?
7=>5?
2
1""&"=
% $.+
&
"&"<"
"$,
R1122N
PIN CONFIGURATION
SOT-23-5
5
4
NC
CE
(mark side)
VOUT
GND
VDD
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Description
2
"
B1
B
";"
)
2
";"
D
%
%";"
*
"""
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
E$/
2
2
"2
2
"2+%
%;",
/$)F2G/$)
2
2
2
/$)F2G/$)
2
"
//
!0
;
;
1"
*/
!H
"!
"
D/F6*
°
!
"
**F*
°
3
R1122N
ELECTRICAL CHARACTERISTICS
• R1122Nxx1A
Symbol
4*°
Item
2
2
"
∆29∆ ."
Min.
Typ.
Max.
242G2
2
2
!0≤≤)/!0
×/$36
×$/
242G2
H"242/$2
*/
242G2
2
!0
!0≤≤6/!0
Unit
D/
!2
&
%.%0.500%-;-2.
2
1
2
"
242G2
//
E/
µ0
"+",
24242G2
/$
$/
µ0
/$/*
/$/
:92
"
∆29∆2
.""
#"
2
"2
0B%
2G/$*2≤2≤I2
4)/!0
&4(58/$*2
6/
242G2
$/
2
4)/!0
!
&&"
D/°≤≤6*°
!
".!
24/2
;"
$*
2
"2>5?
2
"2>.?
∆29∆
"
4
Conditions
7H4/58F//(58
7
I$/
!
±//
9°
)/
*$/
2
!0
/$/
Ω
$*
2
2
/$//
/$*
2
)/
µ2
!
R1122N
• R1122Nxx1B
Symbol
4*°
Item
2
2
"
∆29∆ ."
2
1
2
"
"
"+",
∆29∆2
.""
#"
2
"2
Conditions
Min.
2
2
!0≤≤)/!0
×/$36
×$/
242G2
H"242/$2
*/
242G2
2
D/
!2
&
%.%0.500%-;-2.
0B%
242G2
242G2
24B1
2G/$*2≤2≤I2
4)/!0
&4(58/$*2
//
E/
µ0
/$
$/
µ0
/$/*
/$/
:92
6/
242G2
$/
!
&&"
D/°≤≤6*°
!
".!
24/2
%;""
$*
2
%"2>5?
2
%"2>.?
Unit
!0
!0≤≤6/!0
4)/!0
"
Max.
242G2
2
∆29∆
Typ.
7H4/58F//(58
7
I$/
!
±//
9°
)/
*$/
2
!0
/$/
Ω
$*
2
2
/$//
/$*
2
)/
µ2
!
5
R1122N
• ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
4*°
Dropout Voltage
Output Voltage
VDIF (V)
VOUT (V)
Conditions
Typ.
Max.
$*≤2≤$I
/$)
/$**
$E≤2≤$6
/$6
/$DE
/$*
/$)*
$D≤2≤$E
/$/
/$3
$6≤2≤*$/
/$3
/$I
$3≤2≤$)
4//!0
OPERATION
R1122xx1A
3
R1122xx1B
1
VDD
3
VOUT
1
VDD
VOUT
_
_
+
+
R1
Vref
Vref
Current Limit
CE
4
R1
R2
2
GND
Current Limit
CE
4
R2 GND
2
"&"&2&(
""
!
&
"
!&
""$
0
"!
&
"
!""
"$
6
R1122N
TEST CIRCUITS
CE
CE
4
IN
VDD
3
4
VOUT
R1122Nxx1B
Series
IN
OUT
VDD
3
1
IOUT
VOUT
R1122Nxx1B
Series
ISS
2
2
GND
2.2µF
GND
2.2µF
Fig.1 Standard test Circuit
Fig.2 Supply Current Test Circuit
CE
CE
4
4
IN
VDD
3
VOUT
R1122Nxx1B
Series
OUT
1
IN
VDD
3
VOUT
R1122Nxx1B
Series
OUT
1
IOUT
IOUT
P.G
OUT
1
2
2
GND
Fig.3 Ripple Rejection, Line Transient Response
2.2µF
GND
I1
I2
Fig.4 Load Transient Response Test Circuit
Test Circuit
7
R1122N
TECHNICAL NOTES
H"""
&""=
;!""
"!""!&
"
""&
"
$@
&
'"
"%+%'"
",$
+= H" " ! "" " &
!""
"!"$7&! "!""
"";7$,
!!"
< BD/J**AI$)+
,
BD//)DJ*))*AI$)+
,
BD//)DJ*DE*AI$)+
,
;7.
(2"B1"&&"$&
!"(""
"
"!
$""
"&$µ@
!
"2"B1"$
"!""
"!(
"
$
TYPICAL APPLICATION
CE
CE
IN
VDD
R1122Nxx1A
Series
+
VOUT
OUT
+
GND
Cap.
Cap.
IN
VDD
R1122Nxx1B
Series
+
Cap.
+% "!"",
< !$µ@+"
"&
!$**$/2,
!D$Eµ@+"
"&
!$*$*2,
"
< !$µ@
8
VOUT
OUT
+
GND
Cap.
R1122N
TYPICAL CHARACTERISTICS
Output Voltage vs. Output Current
R1122N151B
R1122N201B
2.5
1.8
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.6
1.4
VIN=2.0V
VIN=2.5V
VIN=3.5V
1.2
1
0.8
0.6
0.4
2
VIN=2.3V
1.5
VIN=2.5V
VIN=3.0V
VIN=4.0V
1
0.5
0.2
0
0
0
100
200
300
400
0
500
R1122N301B
200
300
400
500
R1122N401B
3.5
5
3
Output Voltage VOUT(V)
Output Voltage VOUT(V)
100
Output Current IOUT(mA)
Output Current IOUT(mA)
2.5
VIN=3.3V
2
VIN=3.5V
VIN=4.0V
1.5
VIN=5.0V
1
0.5
0
4
VIN=4.3V
3
VIN=4.5V
VIN=5.0V
VIN=6.0V
2
1
0
0
100
200
300
400
500
Output Current IOUT(mA)
0
100
200
300
400
500
Output Current IOUT(mA)
R1122N501B
6
Output Voltage VOUT(V)
1)
5
4
VIN=5.3V
VIN=5.5V
3
VIN=6.0V
VIN=7.0V
2
1
0
0
100
200
300
400
500
Output Current IOUT(mA)
9
R1122N
2)
Output Voltage vs. Input Voltage
R1122N201B
2.100
1.500
2.000
Output Voltage VOUT(V)
Output Voltage VOUT(V)
R1122N151B
1.600
1.400
1.300
1.200
IOUT=1mA
IOUT=30mA
IOUT=50mA
1.100
1.000
1.900
1.800
1.700
IOUT=1mA
IOUT=30mA
IOUT=50mA
1.600
1.500
1
2
3
4
5
6
7
1
2
3
Input Voltage VIN(V)
R1122N301B
3.000
Output Voltage VOUT(V)
Output Voltage VOUT(V)
6
7
4.500
2.900
2.800
2.700
IOUT=1mA
IOUT=30mA
IOUT=50mA
2.600
2.500
4.000
3.500
3.000
IOUT=1mA
IOUT=30mA
IOUT=50mA
2.500
2
3
4
5
6
7
Input Voltage VIN(V)
R1122N501B
5.000
4.500
4.000
3.500
IOUT=1mA
IOUT=30mA
IOUT=50mA
3.000
2.500
2
3
4
5
Input Voltage VIN(V)
2
3
4
5
Input Voltage VIN(V)
5.500
Output Voltage VOUT(V)
5
R1122N401B
3.100
10
4
Input Voltage VIN(V)
6
7
6
7
R1122N
Dropout Voltage vs. Output Current
R1122N151B
R1122N201B
0.600
0.500
Topt=-40°C
Topt=25°C
Topt=85°C
0.400
Dropout Voltage VDIF(V)
Dropout Voltage VDIF(V)
0.600
0.300
0.200
0.100
0.000
0.500
Topt=-40°C
Topt=25°C
Topt=85°C
0.400
0.300
0.200
0.100
0.000
0
50
100
150
0
Output Current IOUT(mA)
R1122N301B
100
150
R1122N401B
0.600
0.500
Topt=-40°C
Topt=25°C
Topt=85°C
0.400
Dropout Voltage VDIF(V)
Dropout Voltage VDIF(V)
50
Output Current IOUT(mA)
0.600
0.300
0.200
0.100
0.000
0.500
Topt=-40°C
Topt=25°C
Topt=85°C
0.400
0.300
0.200
0.100
0.000
0
50
100
150
Output Current IOUT(mA)
0
50
100
150
Output Current IOUT(mA)
R1122N501B
0.600
Dropout Voltage VDIF(V)
3)
0.500
Topt=-40°C
Topt=25°C
Topt=85°C
0.400
0.300
0.200
0.100
0.000
0
50
100
150
Output Current IOUT(mA)
11
R1122N
4)
Output Voltage vs. Temperature
R1122N151A/B
R1122N201B
VIN=2.5V CIN=1µF
COUT=2.2µF IOUT=30mA
VIN=3.0V CIN=1µF
COUT=2.2µF IOUT=30mA
1.53
2.10
Output VoltageVOUT(V)
Output VoltageVOUT(V)
2.08
1.52
1.51
1.50
1.49
1.48
2.06
2.04
2.02
2.00
1.98
1.96
1.94
1.92
1.47
1.90
-50
-25
0
25
50
Temperature Topt (°C)
75
100
-50
R1122N301A/B
100
4.08
4.06
3.04
Output VoltageVOUT(V)
Output VoltageVOUT(V)
75
VIN=5.0V CIN=1µF
COUT=2.2µF IOUT=30mA
3.06
3.02
3.00
2.98
2.96
4.04
4.02
4.00
3.98
3.96
3.94
3.92
2.94
-50
-25
0
25
50
Temperature Topt (°C)
75
100
R1122N501A/B
VIN=6.0V CIN=1µF
COUT=2.2µF IOUT=30mA
5.10
5.08
Output VoltageVOUT(V)
0
25
50
Temperature Topt (°C)
R1122N401A/B
VIN=4.0V CIN=1µF
COUT=2.2µF IOUT=30mA
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
-50
12
-25
-25
0
25
50
Temperature Topt (°C)
75
100
-50
-25
0
25
50
Temperature Topt (°C)
75
100
R1122N
Supply Current vs. Input Voltage
R1122N151B
R1122N201B
120
Supply Current ISS (µA)
Supply Current ISS (µA)
120
100
80
60
40
100
80
60
40
20
20
0
0
1
2
3
4
5
Input Voltage VIN (V)
6
1
7
2
R1122N301B
6
7
6
7
120
Supply Current ISS (µA)
Supply Current ISS (µA)
3
4
5
Input Voltage VIN (V)
R1122N401B
120
100
80
60
40
20
100
80
60
40
20
0
0
1
2
3
4
5
Input Voltage VIN (V)
6
7
6
7
1
2
3
4
5
Input Voltage VIN (V)
R1122N501B
120
Supply Current ISS (µA)
5)
100
80
60
40
20
0
1
2
3
4
5
Input Voltage VIN (V)
13
R1122N
6)
Supply Current vs. Temperature
R1122N151A/B
150
100
50
0
-50
-25
50
75
0
25
Temperature Topt (°C)
VIN=3.0V CIN=1µF
COUT=2.2µF
200
Supply Current ISS (µA)
200
Supply Current ISS (µA)
R1122N201A/B
VIN=2.5V CIN=1µF
COUT=2.2µF
150
100
50
0
-50
100
-25
R1122N301A/B
100
50
-25
50
75
0
25
Temperature Topt (°C)
100
R1122N501A/B
VIN=6.0V CIN=1µF
COUT=2.2µF
Supply Current ISS (µA)
200
150
100
50
0
-50
14
-25
50
75
0
25
Temperature Topt (°C)
100
VIN=5.0V CIN=1µF
COUT=2.2µF
200
Supply Current ISS (µA)
Supply Current ISS (µA)
150
0
-50
100
R1122N401A/B
VIN=4.0V CIN=1µF
COUT=2.2µF
200
0
25
50
75
Temperature Topt (°C)
150
100
50
0
-50
-25
50
75
0
25
Temperature Topt (°C)
100
R1122N
Ripple Rejection vs. Frequency
R1122N151A/B
R1122N201A/B
VIN=2.5V+0.5Vp-p
COUT=2.2µF IOUT=30mA
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
90.00
Ripple Rejection RR (dB)
Ripple Rejection RR (dB)
90.00
1
10
Frequency Freq (kHz)
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
100
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1
10
Frequency Freq (kHz)
1
10
Frequency Freq (kHz)
100
R1122N401A/B
VIN=4.0V+0.5Vp-p
COUT=2.2µF IOUT=30mA
90.00
Ripple Rejection RR (dB)
Ripple Rejection RR (dB)
90.00
VIN=3.0V+0.5Vp-p
COUT=2.2µF IOUT=30mA
80.00
R1122N301A/B
100
VIN=5.0V+0.5Vp-p
COUT=2.2µF IOUT=30mA
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1
10
Frequency Freq (kHz)
100
R1122N501A/B
90.00
Ripple Rejection RR (dB)
7)
VIN=6.0V+0.5Vp-p
COUT=2.2µF IOUT=30mA
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1
10
Frequency Freq (kHz)
100
15
R1122N
8)
Ripple Rejection vs. Input Voltage (DC bias)
R1122N301B
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
3.50
3.20
3.30
3.40
Input Voltage VIN (V)
90.00
Ripple Rejection RR (dB)
90.00
Ripple Rejection RR (dB)
R1122N301B
COUT=Ceramic 2.2µF
IOUT=1mA
COUT=Ceramic 2.2µF
IOUT=10mA
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
3.10
f=400Hz
f=1kHz
f=10kHz
3.50
3.20
3.30
3.40
Input Voltage VIN (V)
R1122N301B
COUT=Ceramic 2.2µF
IOUT=50mA
Ripple Rejection RR (dB)
90.00
80.00
70.00
60.00
50.00
40.00
30.00
0.00
3.10
9)
f=400Hz
f=1kHz
f=10kHz
20.00
10.00
3.20
3.30
3.40
Input Voltage VIN (V)
3.50
Input Transient Response
4*°
R1122N151B
Tek Run : 2.50MS/s Average
VIN
1→
2→
24$*2↔)$*2
VOUT
4)/!0
4""
4$µ@
Ch1
Ch1
16
1.00V
Ch2 20.0mV
M20.0µs
9&4*µ
R1122N
4*°
R1122N201B
Tek Run : 2.50MS/s Average
VIN
1→
2→
24)$/2↔D$/2
VOUT
4)/!0
4""
4$µ@
Ch1
1.00V
Ch2 20.0mV
M20.0µs
9&4*µ
4*°
R1122N301B
Tek Run : 2.50MS/s Average
VIN
1→
2→
24D$/2↔*$/2
VOUT
4)/!0
4""
4$µ@
Ch1
1.00V
Ch2 20.0mV
M20.0µs
9&4*µ
4*°
R1122N401B
Tek Run : 2.50MS/s Average
VIN
1→
2→
24*$/2↔I$/2
VOUT
4)/!0
4""
4$µ@
Ch1
1.00V
Ch2 20.0mV
M20.0µs
9&4*µ
17
R1122N
4*°
R1122N501B
Tek Run : 2.50MS/s Average
VIN
1→
2→
24I$/2↔E$/2
VOUT
4)/!0
4""
4$µ@
Ch1
1.00V
Ch2 20.0mV
M20.0µs
9&4*µ
10) Load Transient Response
4*°
R1122N151B
Tek Run : 2.50MS/s Average
1→
IOUT
4*/!0↔//!0
VOUT
2→
24$*2
4$µ@
4$µ@
Ch1 500mV
Ch2 50.0mV
M20.0µs
9&4*µ
4*°
R1122N201B
Tek Run : 2.50MS/s Average
1→
IOUT
4*/!0↔//!0
VOUT
24)$/2
2→
4$µ@
4$µ@
Ch1 500mV
18
Ch2 50.0mV
M20.0µs
9&4*µ
R1122N
4*°
R1122N301B
Tek Run : 2.50MS/s Average
1→
IOUT
4*/!0↔//!0
VOUT
24D$/2
2→
4$µ@
4$µ@
Ch1 500mV
Ch2 50.0mV
M20.0µs
9&4*µ
4*°
R1122N401B
Tek Run : 2.50MS/s Average
1→
IOUT
4*/!0↔//!0
VOUT
24*$/2
2→
4$µ@
4$µ@
Ch1 500mV
Ch2 50.0mV
M20.0µs
9&4*µ
4*°
R1122N501B
Tek Run : 2.50MS/s Average
1→
IOUT
4*/!0↔//!0
VOUT
24I$/2
2→
4$µ@
4$µ@
Ch1 500mV
Ch2 50.0mV
M20.0µs
9&4*µ
19
R1122N
TECHNICAL NOTES
4 CE
VOUT1 1
R1122Nxx1B
VIN
Ceramic
Cap.
Spectrum
Analyzer
3 VDD
GND
Ceramic
Cap.
S.A
ESR
2
IOUT
Measuring Circuit for white noise; R1122Nxx1B
""+
","%&
"$""
"""
D/µ2+0$,
"
"
$
+"=H""
!
"""
&
!"
"
"!"$7&! "!""
"";7$,
K!
"""L
+, 242G2
+, @
'""=/5858
+), !
=*°
20