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Электронный компонент: R1180XXX1C

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'2003.10.14
150mA LDO REGULATOR
R1180X SERIES

Rev. 1.11
- 1 -
OUTLINE
The R1180X Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current,
and low ON-resistance. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting,
a current limit circuit which prevents the destruction by excess current, and so on.
The output voltage of these ICs is fixed with high accuracy. B version has a chip enable pin, therefore ultra-low consumption
current standby mode can be realized with the pin.
Since the packages for these ICs are SOT-23-5 (R1180N Series), SC82-AB (R1180Q Series), and SON1612-6(R1180D Series:
Under Development), therefore high density mounting of the ICs on boards is possible.
FEATURES
z Low Supply Current .................................................. Typ. 1
A(Except the current through CE pull-down circuit)
z Standby Mode............................................................ Typ. 0.1
A
z Low Dropout Voltage ................................................ Typ. 0.25V (I
OUT
=150mA 3.0V Output type)
z Low Temperature-Drift Coefficient of Output Voltage Typ. 100ppm/
C
z Good Line Regulation ............................................... Typ. 0.05%/V
z High Output Voltage Accuracy.................................. 2.0%
z
Small Packages .........................................................
SOT-23-5(R1180N)/SC82-AB(R1180Q)/SON1612-6(R1180D:Under Development)
z Output Voltage...........................................................Stepwise setting with a step of 0.1V in the range of 1.2V to 3.6V is
possible
z Built-in Fold Back Protection Circuit........................Typ. 40mA (Current at short mode)
z Ceramic capacitors are recommended to be used with this IC
0.1
F
APPLICATIONS
z Stable voltage reference.
z Power source for electrical appliances such as cameras, VCRs and camcorders.
z Power source for battery-powered equipment.

Rev. 1.11
- 2 -

BLOCK DIAGRAMS
R1180XXX1B R1180XXX1C
V
DD
V
OUT
GND
Vref
Current Limit
+
-
CE
V
OUT
GND
Vref
Current Limit
+
-
V
DD
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:
R1180XXX1X-TR
Part Number
a b c d
Code Contents
a
Designation of Package Type :
N: SOT-23-5 (Mini mold)
Q: SC82-AB (Super-mini mold) D: SON1612-6 (Under Development)
b
Setting Output Voltage (V
OUT
) :
Stepwise setting with a step of 0.1V in the range of 1.2V to 3.6V is possible.
c
Designation of Active Type :
B : active high type
C : without chip enable circuit
Designation of Taping Type :
Ex. TR (refer to Taping Specifications; TR type is the standard direction.)
PIN CONFIGURATION
SOT-23-5
SC82-AB
SON1612-6
(Under Development)
1
2
3
5
4
(mark side)
4
3
1
2
(mark side)
6 5 4
1 2 3

Rev. 1.11
- 3 -

PIN DESCRIPTIONS
z SC-82AB (R1180QXX1B/C)
Pin No.
Symbol
Description
1
CE or NC
Chip Enable Pin or No Connection
2
GND
Ground Pin
3 V
OUT
Output pin
4 V
DD
Input
Pin

z SOT-23-5 (R1180NXX1B/C)
Pin No.
Symbol
Description
1 V
DD
Input
Pin
2
GND
Ground Pin
3
CE or NC
Chip Enable Pin or No Connection
4 NC
No
Connection
5 V
OUT
Output pin

z SON1612-6 (R1180DXX1B/C) :Under Development
Pin No.
Symbol
Description
1 V
DD
Input
Pin
2
GND
Ground Pin
3 V
OUT
Output pin
4 NC
No
Connection
5
GND
Ground Pin
6
CE or NC
Chip Enable Pin or No Connection
ABSOLUTE MAXIMUM RATINGS
Item Symbol
Rating
Unit
Input Voltage
V
IN
6.5 V
Input Voltage(CE Pin)
V
CE
6.5 V
Output Voltage
V
OUT
-0.3
~
V
IN
+0.3 V
Output Current
I
OUT
180 mA
Power Dissipation(SOT23-5)
250
Power Dissipation(SC82-AB)
150
Power Dissipation(SON1612-6)
P
D
500
*Note1
mW
Operating Temperature Range
Topt
-40 ~ 85
C
Storage Temperature Range
Tstg
-55 ~ 125
C
*Note 1: SON1612-6 is under development. This specification is at mounted on board.
P
D
depends on conditions of mounting on board. This specification is based on the measurement at the condition below:
*Measurement Conditions
Environment: Mounted on board (Wind velocity 0m/s)
Board Material: FR-4 (2-layer)

Rev. 1.11
- 4 -



Board dimensions : 40mm x 40mm x t1.6mm
Copper Area : 50%
0
100
200
300
400
500
600
700
0
25
50
75
100
125
Temperature Topt(
C)
P
D
(
mW
)

Rev. 1.11
- 5 -

ELECTRICAL CHARACTERISTICS
R1180XXX1B/R1180Xxx1C
Topt=25
C
Symbol Item
Conditions
Min.
Typ.
Max.
Unit
V
OUT
Output
Voltage
V
IN
= Set V
OUT
+1V
1
A
I
OUT
30mA
V
OUT
0.980
V
OUT
1.020
V
I
OUT
Output
Current
V
IN
- V
OUT
= 1.0V
150
mA
V
OUT
/
I
OUT
Load Regulation
V
IN
= Set V
OUT
+1V
1
A
I
OUT
100mA
20
40
mV
V
DIF
Dropout
Voltage
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
I
SS
Supply
Current
V
IN
= Set V
OUT
+1V, I
OUT
=0mA
1.0
1.5
A
Istandby Supply
Current
(Standby)
V
IN
= Set V
OUT
+1V
V
CE
= GND(B version)
0.1
1.0
A
V
OUT
/
V
IN
Line Regulation
Set V
OUT
+0.5V
V
IN
6.0V
I
OUT
= 30mA
0.05
0.20
%/V
V
IN
Input
Voltage
1.7 6.0 V
V
OUT
/
T
Output Voltage
Temperature Coefficient
I
OUT
= 30mA
-40
C
Topt
85
C
100
ppm
/
C
Ilim Short
Current
Limit
V
OUT
= 0V
40
mA
I
PD
CE Pull-down Constant Current
(R1180Xxx1B)
0.35
A
V
CEH
CE Input Voltage "H"
(R1180Xxx1B) 1.2
6.0
V
V
CEL
CE Input Voltage "L"
(R1180Xxx1B) 0.0
0.3
V

ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25
C
Dropout Voltage
V
DIF
(V)
Output Voltage
V
OUT
(V)
Condition Typ.
Max.
1.2
V
OUT
< 1.3
0.85 1.20
1.3
V
OUT
< 1.4
0.75 1.10
1.4
V
OUT
< 1.5
0.65 1.00
1.5
V
OUT
< 1.7
0.60 0.90
1.7
V
OUT
< 1.9
0.50 0.75
1.9
V
OUT
< 2.1
0.40 0.65
2.1
V
OUT
< 2.8
0.35 0.55
2.8
V
OUT
3.6
I
OUT
= 150mA
0.25 0.40

Rev. 1.11
- 6 -

s
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R1180X121X R1180X281X
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
100
200
300
400
500
Output Current I
OUT
[mA]
O
u
tput Voltage V
OUT
[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
100
200
300
400
500
Output Current I
OUT
[mA]
O
u
tput Voltage V
OUT
[V]
R1180X361X
0.0
1.0
2.0
3.0
4.0
0
100
200
300
400
500
Output Current I
OUT
[mA]
Out
put
V
o
l
t
age V
OUT
[V]
2) Output Voltage vs. Input Voltage
R1180X121X R1180X281X
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1
2
3
4
5
6
Input Voltage V
IN
[V]
O
u
tput Voltage V
OUT
[V]
1mA
30mA
50mA
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
1
2
3
4
5
6
Input Voltage V
IN
[V]
O
u
tput Voltage V
OUT
[V]
1mA
30mA
50mA
Topt=25
C
Topt=25
C
V
IN
=3.5V
2.5V
2.0V
2.2V
V
IN
=3.1V
3.3V
3.5V
3.9V
4.1V

Rev. 1.11
- 7 -

R1180X361X
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
1
2
3
4
5
6
Input Voltage V
IN
[V]
O
u
tput Voltage V
OUT
[V]
1mA
30mA
50mA
3) Dropout Voltage vs. Output Current
R1180X121X R1180X281X
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
25
50
75
100
125
150
Output Current I
OUT
(mA)
D
r
opout Voltage V
DIF
(V)
85C
25C
-40C
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0
25
50
75
100
125
150
Output Current I
OUT
(mA)
D
r
opout Voltage V
DIF
(V)
85C
25C
-40C
R1180X361X
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0
25
50
75
100
125
150
Output Current
I
OUT
(mA)
D
r
opou
t Voltag
e
V
DIF
(V)
85C
25C
-40C

Rev. 1.11
- 8 -


4) Output Voltage vs. Temperature (I
OUT
=30mA)
R1180X121X (Vin=2.2V)
R1180X281X (Vin=3.8V)
1.16
1.17
1.18
1.19
1.20
1.21
1.22
1.23
1.24
-40
-15
10
35
60
85
Temperature Topt[C]
O
u
tput Voltage V
OUT
[V]
2.74
2.76
2.78
2.80
2.82
2.84
2.86
-40
-15
10
35
60
85
Temperature Topt
O
u
tput Voltage V
OUT
[V]
R1180X361X (Vin=4.6V)
3.52
3.54
3.56
3.58
3.60
3.62
3.64
3.66
3.68
-40
-15
10
35
60
85
Temperature Topt
O
u
tput Voltage V
OUT
[V]
5) Supply Current vs. Input Voltage (Topt=25
C)
R1180X121X R1180X281X
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
Su
ppl
y
C
u
rre
n
t
I
SS
[
A]
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
Supply C
u
rrent I
SS
[
A]
(
C)
(
C)

Rev. 1.11
- 9 -


R1180X361X
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
Supply C
u
rrent I
SS
[
A]
6) Supply Current vs. Temperature
R1180X121X(V
IN
=2.2V) R1180X281X(V
IN
=3.8V)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
-40
-15
10
35
60
85
Temperature Topt
Su
ppl
y
C
u
rre
n
t
I
SS
[
A]
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
-40
-15
10
35
60
85
Temperature Topt
Supply C
u
rrent I
SS
[
A]
R1180X361X(V
IN
=4.6V)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
-40
-15
10
35
60
85
Temperature Topt
Supply C
u
rrent I
SS
[
A]
(
C)
(
C)
(
C)

Rev. 1.11
- 10 -



7) Dropout Voltage vs. Set Output Voltage (Topt=25
C)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
2
3
4
Set Output Voltage Vreg[V]
D
r
opout Voltage V
DIF
[V]
10mA
30mA
50mA
150mA
8) Ripple Rejection vs. Frequency (Cin=none)
R1180X121X
(
V
IN
=2.4V
DC
+0.5Vp-p, C
OUT
=
Ceramic 0.1
F)
R1180X121X
(
V
IN
=2.4V
DC
+0.5Vp-p, C
OUT
=
Ceramic 1.0
F)
0
10
20
30
40
50
60
70
0.1
1
10
100
Frequency f[kHz]
R
i
pple R
e
jection R
R
[
dB]
0
10
20
30
40
50
60
70
0.1
1
10
100
Frequency f[kHz]
R
i
pple R
e
jection R
R
[
dB]
R1180X281X
(
V
IN
=3.8V
DC
+0.5Vp-p,C
OUT
=
Ceramic 0.1
F)
R1180X281X
(
V
IN
=3.8V
DC
+0.5Vp-p, C
OUT
=
Ceramic 1.0
F)
0
10
20
30
40
50
60
70
0.1
1
10
100
Frequency f[kHz]
R
i
pple R
e
jection R
R
[
dB]
0
10
20
30
40
50
60
70
0.1
1
10
100
Frequency f[kHz]
Ri
p
p
l
e
Re
j
e
c
t
i
o
n
RR[d
B
]
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA

Rev. 1.11
- 11 -



R1180X361X
(V
IN
=4.6V
DC
+0.5Vp-p, C
OUT
=
Ceramic 0.1
F)
R1180X361X
(
V
IN
=4.6V
DC
+0.5Vp-p, C
OUT
=
Ceramic 1.0
F)
0
10
20
30
40
50
60
70
0.1
1
10
100
Frequency f[kHz]
R
i
pple R
e
jection R
R
[
dB]
0
10
20
30
40
50
60
70
0.1
1
10
100
Frequency f[kHz]
Ri
p
p
l
e
Re
j
e
c
t
i
o
n
RR[d
B
]
9) Ripple Rejection vs. Input Bias Voltage (Topt=25
C, Cin=none, Cout=ceramic0.1
F)
R1180X281X (I
OUT
=1mA) R1180X281X(I
OUT
=30mA)
0
5
10
15
20
25
30
35
40
45
50
2.9
3.2
3.5
3.8
Input Voltage V
IN
[V]
Ri
p
p
l
e
Re
j
e
c
t
i
o
n
RR[d
B
]
f=600Hz
f=1kHz
f=10kHz
f=100kHz
0
5
10
15
20
25
30
35
40
45
50
2.9
3.2
3.5
3.8
Input Voltage V
IN
[V]
Ri
p
p
l
e
Re
j
e
c
t
i
o
n
RR[d
B
]
f=600Hz
f=1kHz
f=10kHz
f=100kHz
R1180X281X (I
OUT
=50mA)
0
5
10
15
20
25
30
35
40
45
50
2.9
3.2
3.5
3.8
Input Voltage V
IN
[V]
Ri
p
p
l
e
Re
j
e
c
t
i
o
n
RR[d
B
]
f=600Hz
f=1kHz
f=10kHz
f=100kHz
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA

Rev. 1.11
- 12 -



10) Input Transient Response (C
IN
=none, tr=tf=5
s
)
R1180X281X (Iout=1mA, Cout=1
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
100
200
300
400
500
600
700
800
900
1000
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-1
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
R1180X281X (Iout=30mA, Cout=0.1
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
20
40
60
80
100
120
140
160
180
200
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-1
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
R1180X281X (Iout=30mA, Cout=0.47
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
20
40
60
80
100
120
140
160
180
200
Time
T[
s]
O
u
tput Voltage V
OUT
[V]
-1
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
Input Voltage
Output Voltage
Input Voltage
Output Voltage
Input Voltage
Output Voltage

Rev. 1.11
- 13 -


R1180X281X (Iout=30mA, Cout=1
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
20
40
60
80
100
120
140
160
180
200
Time T[
s]
Out
put
Volt
age V
OU
T
[V
]
-1
0
1
2
3
4
5
6
I
nput
Volt
age V
IN
[V
]
11) Load Transient Response (tr=tf=0.5
s V
IN
=3.8V
)
R1180X281X (C
OUT
=
Ceramic 0.1
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
20
40
60
80
100
120
140
160
180
200
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-1
0
1
2
3
4
5
6
Input Voltage V
IN
[V]
R1180X281X (C
OUT
=
Ceramic1
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
100
200
300
400
500
600
700
800
900
1000
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-40
-30
-20
-10
0
10
20
O
u
tput Cur
r
ent I
OUT
[mA]
Input Voltage
Output Voltage
Output Current
Output Voltage
Output Voltage
Output Current

Rev. 1.11
- 14 -


R1180X281X (C
OUT
=
Ceramic 10
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
100
200
300
400
500
600
700
800
900
1000
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-40
-30
-20
-10
0
10
20
O
u
tput Cur
r
ent I
OUT
[mA]
R1180X281X (C
OUT
=
Ceramic 0.1
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
20
40
60
80
100
120
140
160
180
200
Time
T[
s]
O
u
tput Voltage V
OUT
[V]
-150
-100
-50
0
50
100
150
O
u
tput Cur
r
ent I
OUT
[mA]
R1180X281X (C
OUT
=
Ceramic 0.47
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
20
40
60
80
100
120
140
160
180
200
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-150
-100
-50
0
50
100
150
O
u
tput Cur
r
ent I
OUT
[mA]
Output Voltage
Output Current
Output Voltage
Output Current
Output Voltage
Output Current

Rev. 1.11
- 15 -


R1180X281X (C
OUT
=
Ceramic 1.0
F)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
20
40
60
80
100
120
140
160
180
200
Time T[
s]
O
u
tput Voltage V
OUT
[V]
-150
-100
-50
0
50
100
150
O
u
tput Cur
r
ent I
OUT
[mA]
12) ESR vs. Output Current
R1180X121X
(
C
IN =Ceramic 1.0
A,
C
OUT =Ceramic 0.1
F)
R1180X281X
(
C
IN =Ceramic 1.0
A,
C
OUT =Ceramic 0.1
F)
0.01
0.1
1
10
100
1000
0
50
100
150
Output Current I
OUT
[mA]
ESR [
]
0.01
0.1
1
10
100
1000
0
50
100
150
Output Current I
OUT
[mA]
ESR [
]
The relations between I
OUT
(Output Current) and ESR of an output capacitor are shown above. The conditions when the white
noise level is under 40
V (Avg.) are marked as the hatched area in the graph.

<Measurement conditions>
(1) V
IN
=V
OUT
+1V
(2) Frequency Band: 10Hz to 2MHz (BW=30Hz)
(3) Temperature:
-40
C to 85
C
Output Voltage
Output Current