UNISONIC TECHNOLOGIES CO., LTD
78TXXA
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
1
DESCRIPTION
The UTC
78TXXA
family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 1 A.
LINEAR INTEGRATED CIRCUIT
TO-263
FEATURES
*Peak Output Current Up To 1 A
*Fixed Output Voltage Of 4.7V ,5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V,
18V and 24V Available
*Thermal Overload Shutdown Protection
*Short Circuit Current Limiting
*Output Transistor SOA Protection
1
TO-263-3
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
Halogen Free
78TxxA-TQ2-R
78TxxAL-TQ2-R
78TxxAG-TQ2-R
78TxxA-TQ2-T
78TxxAL-TQ2-T
78TxxAG-TQ2-T
78TxxA-TQ3-R
78TxxAL-TQ3-R
78TxxAG-TQ3-R
78TxxA-TQ3-T
78TxxAL-TQ3-T
78TxxAG-TQ3-T
Note: Pin Code: I: Input
G: GND
O: Output
Pin Assignment
1
2
3
I
G
O
I
G
O
I
G
O
I
G
O
Package
TO-263
TO-263
TO-263-3
TO-263-3
Packing
Tape Reel
Tube
Tape Reel
Tube
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Copyright © 2010 Unisonic Technologies Co., Ltd.
1 of 8
QW-R101-011.H
78TXXA
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
47 :4.7V
05 :5.0V
06 :6.0V
07 :7.0V
08 :8.0V
09 :9.0V
10 :10V
12 :12V
15 :15V
18 :18V
24 :24V
LINEAR INTEGRATED CIRCUIT
MARKING
TO-263
TO-263-3
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R101-012.H
78TXXA
TEST CIRCUIT
LINEAR INTEGRATED CIRCUIT
INPUT
1
R13
T10
R17
T8
R9
T9
Z2
T12
T14
R19
R18
R12
R11
R10
R14
T11
T5
T6
T13
OUTPUT
3
R8
R15
T4
Z1
T15
R5
R4
R6
T7
R1
R2
C1
T3
T1
T2
R3
R7
R16
GND
2
APPLICATION CIRCUIT
V
IN
1
UTC 78TXXA
2
3
V
OUT
C
I
0.33
μF
C
O
0.1
μF
Note 1: To specify an output voltage, substitute voltage value for "XX".
2: Bypass capacitors are recommended for optimum stability and transient response and should be located as
close as possible to the regulators.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 8
QW-R101-012.H
78TXXA
PARAMETER
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
SYMBOL
RATING
UNIT
V
OUT
=4.7~18V
V
IN
35
V
Input Voltage
V
OUT
=24V
V
IN
40
V
Output Current
I
OUT
1
A
Power Dissipation
P
D
Internally Limited
W
Junction Temperature
T
J
+125
°С
Operating Junction Temperature
T
OPR
-20~ +85
°С
Storage Temperature
T
STG
-40~ +150
°С
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 CHARACTERISTICS
(
T
J
= 0°С-125°С,C
I
=0.33uF,C
O
=0.1uF,unless otherwise specified
)
(Note 1)
FOR 78T47A
(V
IN
=9.7V, I
OUT
=0.5A)
PARAMETER
SYMBOL
Output Voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
eN
ΔVo/ΔT
RR
I
PEAK
I
SC
V
D
TEST CONDITIONS
MIN
T
J
=25°C, I
OUT
=5mA-1.0A
4.512
V
IN
=7.2V~19.7V,I
OUT
=5mA-1.0A,P
D
≦
15W 4.465
T
J
=25°C, I
OUT
=5mA-1.0A
T
J
=25°C, I
OUT
=0.25A-0.75A
V
IN
=7.2V~19.7V, T
J
=25°C
V
IN
=7.2V~19.7V, T
J
=25°C, I
OUT
=1.0A
T
J
=25°C, I
OUT
≦
1.0A
V
IN
=7.2V~19.7V
I
OUT
=5mA-1.0A
10Hz
≦
f
≦
100kHz
I
OUT
=5mA
V
IN
=7.7V-17.7V, f=120Hz, T
J
=25°C
T
J
=25°C
V
IN
=35V, T
J
=25°C
T
J
=25°C
TEST CONDITIONS
T
J
=25°C, I
OUT
=5mA - 1.0A
V
IN
=7.5V~20V,I
OUT
=5mA-1.0A, P
D
≦
15W
T
J
=25°C, I
OUT
=5mA-1.0A
T
J
=25°C, I
OUT
=0.25A-0.75A
V
IN
=7V~25V, T
J
=25°C
V
IN
=7.5V~20V, T
J
=25°C, I
OUT
=1.0A
T
J
=25°C, I
OUT
≦
1.0A
V
IN
=7.5V~20V
I
OUT
=5mA-1.0A
10Hz
≦
f
≦
100kHz
I
OUT
=5mA
V
IN
=8V-18V, f=120Hz, T
J
=25°C
T
J
=25°C
V
IN
=35V, T
J
=25°C
T
J
=25°C
TYP
4.70
MAX
4.888
4.935
47
24
47
47
8.0
1.0
0.5
40
-0.6
80
1.8
250
2.0
TYP
5.0
MAX
5.20
5.25
50
25
50
50
8.0
1.0
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
62
FOR 78T05A
(V
IN
=10V, I
OUT
=0.5A)
PARAMETER
SYMBOL
Output Voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
eN
ΔVo/ΔT
RR
I
PEAK
I
SC
V
D
MIN
4.80
4.75
62
40
-0.6
80
1.8
250
2.0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 8
QW-R101-012.H
78TXXA
ELECTRICAL CHARACTERISTICS(Cont.)
FOR 78T06A
(V
IN
=11V, I
OUT
=0.5A)
PARAMETER
SYMBOL
Output Voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
eN
ΔVo/ΔT
RR
I
PEAK
I
SC
V
D
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
T
J
=25°C, I
OUT
=5mA-1.0A
V
IN
=8.5V~21V,I
OUT
=5mA-1.0A, P
D
≦
15W
T
J
=25°C, I
OUT
=5mA-1.0A
T
J
=25°C, I
OUT
=0.25A-0.75A
V
IN
=8V~25V, T
J
=25°C
V
IN
=8.5V~21V, T
J
=25°C, I
OUT
=1.0A
T
J
=25°C, I
OUT
≦
1.0A
V
IN
=8.5V~21V
I
OUT
=5mA-1.0A
10Hz
≦
f
≦
100kHz
I
OUT
=5mA
V
IN
=9V-19V, f=120Hz, T
J
=25°C
T
J
=25°C
V
IN
=35V, T
J
=25°C
T
J
=25°C
TEST CONDITIONS
T
J
=25°C, I
OUT
=5mA-1.0A
V
IN
=9.5V~22V,I
OUT
=5mA-1.0A,P
D
≦
15W
T
J
=25°C, I
OUT
=5mA-1.0A
T
J
=25°C, I
OUT
=0.25A-0.75A
V
IN
=9V~25V, T
J
=25°C
V
IN
=9.5V~22V, T
J
=25°C, I
OUT
=1.0A
T
J
=25°C, I
OUT
≦
1.0A
V
IN
=9.5V~22V
I
OUT
=5mA-1.0A
10Hz
≦
f
≦
100kHz
I
OUT
=5mA
V
IN
=10V-20V, f=120Hz, T
J
=25°C
T
J
=25°C
V
IN
=35V, T
J
=25°C
T
J
=25°C
TEST CONDITIONS
T
J
=25°C, I
OUT
=5mA-1.0A
V
IN
=10.5V~23V,I
OUT
=5mA-1.0A,P
D
≦
15W
T
J
=25°C, I
OUT
=5mA-1.0A
T
J
=25°C, I
OUT
=0.25A-0.75A
V
IN
=10.5V~25V, T
J
=25°C
V
IN
=10.5V~23V, T
J
=25°C, I
OUT
=1.0A
T
J
=25°C, I
OUT
≦
1.0A
V
IN
=10.5V~23V
I
OUT
=5mA-1.0A
10Hz
≦
f
≦
100kHz
I
OUT
=5mA
V
IN
=11.5V~21.5V, f=120Hz, T
J
=25°C
T
J
=25°C
V
IN
=35V, T
J
=25°C
T
J
=25°C
MIN
5.76
5.70
TYP
6.0
MAX
6.24
6.30
60
30
60
60
8.0
1.0
0.5
59
45
-0.7
75
1.8
250
2.0
TYP
7.0
MAX
7.28
7.35
70
35
70
70
8.0
1.0
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
5 of 8
FOR 78T07A
(V
IN
=13V, I
OUT
=0.5A)
PARAMETER
SYMBOL
Output Voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
eN
ΔVo/ΔT
RR
I
PEAK
I
SC
V
D
MIN
6.72
6.65
59
50
-0.8
75
1.7
250
2.0
TYP
8.0
MAX
8.32
8.40
80
40
80
80
8.0
1.0
0.5
FOR 78T08A
(V
IN
=14V, I
OUT
=0.5A)
PARAMETER
SYMBOL
Output Voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
eN
ΔVo/ΔT
RR
I
PEAK
I
SC
V
D
MIN
7.68
7.60
56
58
-0.9
72
1.8
250
2.0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
QW-R101-012.H
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