UNISONIC TECHNOLOGIES CO., LTD
UT71XX
CMOS IC
www.unisonic.com.tw
1 of 8
Copyright 2005 Unisonic Technologies Co., LTD
QW-R502-017,D
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.
FEATURES
* Accurate Output Voltage Range (2.4%)
* Low Power Consumption
* Low Voltage Dropout
* Low Temperature Coefficient
* Wide Operating Voltage (24V Max.)
TO-92
1
SOT-89
1
*Pb-free plating product number: UT71XXL
ORDERING INFORMATION
Order Number
Pin Assign.
Normal
Lead free plating
Package
1 2 3
Packing
UT71XX-AB3-C-R UT71XX
L
-AB3-C-R
SOT-89
G
I O
Tape
Reel
UT71XX-T92-B-B UT71XXL-T92-B-B
TO-92 O
G
I Tape
Box
UT71XX-T92-B-K UT71XXL-T92-B-K
TO-92 O
G
I Bulk
UT71XX-T92-C-B UT71XXL-T92-C-B
TO-92 G
I O
Tape
Box
UT71XX-T92-C-K UT71XXL-T92-C-K
TO-92 G
I O
Bulk
Note: 1. xx: Output Voltage, refer to Marking Information.
2. Pin assignment: I: V
IN
O: V
OUT
G:Ground
UT71XX
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
2 of 8
www.unisonic.com.tw
QW-R502-017,D
MARKING INFORMATION
PACKAGE VOLTAGE
CODE
MARKING
SOT-89
1
2
3
UT71XXX
Date Code
Voltage Code
Space:Pb/Sn
L:Pb-free
TO-92
1 5 : 1 . 5 V
1 8 : 1 . 8 V
2 0 : 2 . 0 V
2 5 : 2 . 5 V
2 7 : 2 . 7 V
2 8 : 2 . 8 V
3 0 : 3 . 0 V
3 3 : 3 . 3 V
3 6 : 3 . 6 V
4 4 : 4 . 4 V
4 5 : 4 . 5 V
5 0 : 5 . 0 V
7 0 : 7 . 0 V
1
2
3
UTC
UT71XXX
Voltage Code
Date Code
Pin Code
Space:Pb/Sn
L:Pb-free
BLOCK DIAGRAM
V
IN
GND
V
ref
V
OUT
+
UT71XX
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
3 of 8
www.unisonic.com.tw
QW-R502-017,D
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
RATINGS
UNIT
Supply Voltage
V
CC
-0.3 ~ +28
V
Power Dissipation
P
D
200 mW
Operating Temperature
T
OPR
0 ~ +70
Storage Temperature
T
STG
-40 ~ +150
Note 1. 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.
2. The device is guaranteed to meet performance specification within 0~+70 operating temperature range
and assured by design from 20~+85.
ELECTRICAL CHARACTRISTICS
(Ta=25 )
FOR UT7115
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=3.5V, I
OUT
=10mA
1.464 1.5 1.536
V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=3.5V,1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=3.5V 20
30
mA
Current Consumption
I
SS
V
IN
=3.5V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
2.5VV
IN
24V, I
OUT
=0.5mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=3.5V, I
OUT
=10mA
0C<Ta<70C
0.2 mV/
FOR UT7118
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=3.8V, I
OUT
=10mA
1.757 1.8 1.843
V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=3.8V,1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=3.8V 20
30
mA
Current Consumption
I
SS
V
IN
=3.8V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
2.8VV
IN
24V, I
OUT
=0.5mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=3.8V, I
OUT
=10mA
0C<Ta<70C
0.25 mV/
FOR UT7120
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=4V, I
OUT
=10mA 1.952
2.0
2.048
V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=4V, 1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=4V 20
30
mA
Current Consumption
I
SS
V
IN
=4V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
3VV
IN
24V, I
OUT
=0.5mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=4V, I
OUT
=10mA
0C<Ta<70C
0.3 mV/
UT71XX
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
4 of 8
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QW-R502-017,D
ELECTRICAL CHARACTRISTICS(Cont.)
FOR UT7125
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=4.5V, I
OUT
=10mA
2.440 2.5 2.560
V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=4.5V,1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=4.5V 20
30
mA
Current Consumption
I
SS
V
IN
=4.5V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
3.5VV
IN
24V, I
OUT
=0.5mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=4.5V, I
OUT
=10mA
0C<Ta<70C
0.35 mV/
FOR UT7127
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=4.7V, I
OUT
=10mA
2.635
2.7 2.765 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=4.7V,1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60 mV
Output Current
I
OUT
V
IN
=4.7V 20
30
mA
Current Consumption
I
SS
V
IN
=4.7V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
3.7VV
IN
24V, I
OUT
=0.5mA
0.2 %/V
Temperature Coefficient
V
OUT
Ta
V
IN
=4.7V, I
OUT
=10mA
0C<Ta<70C
0.4 mV/
FOR UT7128
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=4.8V, I
OUT
=10mA
2.732
2.8 2.867 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=4.8V,1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=4.8V 20
30
-
mA
Current Consumption
I
SS
V
IN
=4.8V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
3.8VV
IN
24V, I
OUT
=1mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=4.8V, I
OUT
=10mA
0C<Ta<70C
0.4 mV/
FOR UT7130
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=5V, I
OUT
=10mA
2.928
3.0 3.072 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=5V, 1mAI
OUT
20mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=5V 20
30
-
mA
Current Consumption
I
SS
V
IN
=5V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
4VV
IN
24V, I
OUT
=1mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=5V, I
OUT
=10mA
0C<Ta<70C
0.45 mV/
UT71XX
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
5 of 8
www.unisonic.com.tw
QW-R502-017,D
ELECTRICAL CHARACTRISTICS(Cont.)
FOR UT7133
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=5.5V, I
OUT
=10mA
3.220
3.3 3.379 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=5.5V, 1mAI
OUT
30mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60 mV
Output Current
I
OUT
V
IN
=5.5V 20
30
mA
Current Consumption
I
SS
V
IN
=5.5V, No load
4
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
4.5VV
IN
24V, I
OUT
=1mA
0.2 %/V
Temperature Coefficient
V
OUT
Ta
V
IN
=5.5V, I
OUT
=10mA
0C<Ta<70C
0.5 mV/
FOR UT7136
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=5.6V, I
OUT
=10mA
3.513
3.6 3.686 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=5.6V,1mAI
OUT
30mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60 mV
Output Current
I
OUT
V
IN
=5.6V 20
30
mA
Current Consumption
I
SS
V
IN
=5.6V, No load
3
6.0
A
Line Regulation
V
OUT
V
IN
V
OUT
4.6VV
IN
24V, I
OUT
=1mA
0.2 %/V
Temperature Coefficient
V
OUT
Ta
V
IN
=5.6V, I
OUT
=10mA
0C<Ta<70C
0.6 mV/
FOR UT7144
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=6.4V, I
OUT
=10mA
4.294
4.4 4.505 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=6.4V, 1mAI
OUT
30mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=6.4V 20
30
mA
Current Consumption
I
SS
V
IN
=6.4V, No load
4
7.5
A
Line Regulation
V
OUT
V
IN
V
OUT
5.4VV
IN
24V, I
OUT
=1mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=6.4V, I
OUT
=10mA
0C<Ta<70C
0.7 mV/
FOR UT7145
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
V
IN
=6.5V, I
OUT
=10mA
4.392
4.5 4.608 V
Input Voltage
V
IN
24 V
Load Regulation
V
OUT
V
IN
=6.5V, 1mAI
OUT
30mA
60
100
mV
Voltage Dropout
V
D
I
OUT
=1mA
60
mV
Output Current
I
OUT
V
IN
=6.5V 20
30
mA
Current Consumption
I
SS
V
IN
=6.5V, No load
4
7.5
A
Line Regulation
V
OUT
V
IN
V
OUT
5.5VV
IN
24V, I
OUT
=1mA
0.2
%/V
Temperature Coefficient
V
OUT
Ta
V
IN
=6.5V, I
OUT
=10mA
0C<Ta<70C
0.7 mV/
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