UNISONIC TECHNOLOGIES CO., LTD
UT71XX
THREE-TERMINAL LOW POWER
VOLTAGE REGULATORS
DESCRIPTION
The UTC
UT71XX
series is a set of three- Terminal low power
voltage regulators implemented in CMOS technology. They are
available with several fixed output voltages ranging from 1.5V~7.0V.
The advantage of CMOS technology is low voltage dropout and low
quiescent current.
Although designed primarily as fixed voltage regulators, these
devices can be used with external components to obtain variable
voltages and currents.
CMOS IC
FEATURES
* Accurate output voltage range (±2.4%)
* Low power consumption
* Low voltage dropout
* Low temperature coefficient
* Wide operating voltage (24V Max.)
ORDERING INFORMATION
Ordering Number
Lead free
Halogen Free
UT71XXL-AB3-C-R
UT71XXG-AB3-C-R
UT71XXL-T92-B-B
UT71XXG-T92-B-B
UT71XXL-T92-B-K
UT71XXG-T92-B-K
UT71XXL-T92-C-B
UT71XXG-T92-C-B
UT71XXL-T92-C-K
UT71XXG-T92-C-K
Note: Pin assignment: I: V
IN
O: V
OUT
G: Ground
Package
SOT-89
TO-92
TO-92
TO-92
TO-92
Pin Assignment
1
2
3
G
I
O
O
G
I
O
G
I
G
I
O
G
I
O
Packing
Tape Reel
Tape Box
Bulk
Tape Box
Bulk
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UT71XX
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
15:1.5V
18:1.8V
20:2.0V
25:2.5V
27:2.7V
28:2.8V
30:3.0V
33:3.3V
36:3.6V
44:4.4V
45:4.5V
50:5.0V
70:7.0V
MARKING
XX
UT71XX
1
2
3
L: Lead Free
G: Halogen Free
CMOS IC
SOT-89
Date Code
Voltage Code
TO-92
Voltage Code
Pin Code
UTC
UT71XX
1
1
2
3
L: Lead Free
G: Halogen Free
Date Code
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UT71XX
BLOCK DIAGRAM
CMOS IC
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UT71XX
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
CC
CMOS IC
RATINGS
UNIT
Supply Voltage
-0.3 ~ +28
V
SOT-89
200
Power Dissipation
P
D
mW
TO-92
200
Operating Temperature
T
OPR
0 ~ +70
℃
Storage Temperature
T
STG
-40 ~ +125
℃
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTRISTICS
(Ta=25
℃
)
FOR UT7115
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△
V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=3.5V, I
OUT
=10mA
V
IN
=3.5V,1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=3.5V
V
IN
=3.5V, No load
2.5V≤V
IN
≤24V,
I
OUT
=0.5mA
V
IN
=3.5V, I
OUT
=10mA
0°C<Ta<70°C
MIN
1.464
TYP
1.5
60
60
30
4
0.2
±0.2
MAX
1.536
24
100
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
20
6.0
FOR UT7118
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△
V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=3.8V, I
OUT
=10mA
V
IN
=3.8V,1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=3.8V
V
IN
=3.8V, No load
2.8V≤V
IN
≤24V,
I
OUT
=0.5mA
V
IN
=3.8V, I
OUT
=10mA
0°C<Ta<70°C
MIN
1.757
TYP
1.8
60
60
30
4
0.2
±0.25
MAX
1.843
24
100
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
20
6.0
FOR UT7120
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=4V, I
OUT
=10mA
V
IN
=4V, 1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=4V
V
IN
=4V, No load
3V≤V
IN
≤24V,
I
OUT
=0.5mA
V
IN
=4V, I
OUT
=10mA
0°C<Ta<70°C
MIN
1.952
TYP
2.0
60
60
30
4
0.2
±0.3
MAX
2.048
24
100
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
20
6.0
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UT71XX
ELECTRICAL CHARACTRISTICS(Cont.)
FOR UT7125
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=4.5V, I
OUT
=10mA
V
IN
=4.5V,1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=4.5V
V
IN
=4.5V, No load
3.5V≤V
IN
≤24V,
I
OUT
=0.5mA
V
IN
=4.5V, I
OUT
=10mA
0°C<Ta<70°C
MIN
2.440
TYP
2.5
60
60
30
4
0.2
±0.35
CMOS IC
MAX
2.560
24
100
20
6.0
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
FOR UT7127
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=4.7V, I
OUT
=10mA
V
IN
=4.7V,1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=4.7V
V
IN
=4.7V, No load
3.7V≤V
IN
≤24V,
I
OUT
=0.5mA
V
IN
=4.7V, I
OUT
=10mA
0°C<Ta<70°C
MIN
2.635
TYP
2.7
60
60
30
4
0.2
±0.4
MAX
2.765
24
100
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
20
6.0
FOR UT7128
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=4.8V, I
OUT
=10mA
V
IN
=4.8V,1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=4.8V
V
IN
=4.8V, No load
3.8V≤V
IN
≤24V,
I
OUT
=1mA
V
IN
=4.8V, I
OUT
=10mA
0°C<Ta<70°C
MIN
2.732
TYP
2.8
60
60
30
4
0.2
±0.4
MAX
2.867
24
100
-
6.0
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
20
FOR UT7130
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Voltage Dropout
Output Current
Current Consumption
Line Regulation
Temperature Coefficient
SYMBOL
V
OUT
V
IN
△
V
OUT
V
D
I
OUT
I
SS
△
V
OUT
△V
IN
×V
OUT
△
V
OUT
△
Ta
TEST CONDITIONS
V
IN
=5V, I
OUT
=10mA
V
IN
=5V, 1mA≤I
OUT
≤20mA
I
OUT
=1mA
V
IN
=5V
V
IN
=5V, No load
4V≤V
IN
≤24V,
I
OUT
=1mA
V
IN
=5V, I
OUT
=10mA
0°C<Ta<70°C
MIN
2.928
TYP
3.0
60
60
30
4
0.2
±0.45
MAX
3.072
24
100
-
6.0
UNIT
V
V
mV
mV
mA
μA
%/V
mV/℃
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