UNISONIC TECHNOLOGIES CO., LTD
78TXXA
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
1
LINEAR INTEGRATED CIRCUIT
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.
TO-263
FEATURES
* Peak Output Current Up To 1 A
* Fixed Output Voltage Of 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V and 18V
Available
* Thermal Overload Shutdown Protection
* Short Circuit Current Limiting
* Output Transistor SOA Protection
1
TO-263-3
ORDERING INFORMATION
Ordering Number
Lead Free
78TXXAL-TQ2-R
78TXXAL-TQ2-T
78TXXAL-TQ3-R
78TXXAL-TQ3-T
Note: Pin Code: I: Input
Halogen Free
78TXXAG-TQ2-R
78TXXAG-TQ2-T
78TXXAG-TQ3-R
78TXXAG-TQ3-T
O: Output
Package
TO-263
TO-263
TO-263-3
TO-263-3
Pin Assignment
1
2
3
I
G
O
I
G
O
I
G
O
I
G
O
Packing
Tape Reel
Tube
Tape Reel
Tube
G: GND
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Copyright © 2013 Unisonic Technologies Co., Ltd.
1 of 9
QW-R101-011.L
78TXXA
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
05 :5.0V
06 :6.0V
07 :7.0V
08 :8.0V
09 :9.0V
10 :10V
12 :12V
15 :15V
18 :18V
LINEAR INTEGRATED CIRCUIT
MARKING
TO-263
TO-263-3
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 9
QW-R101-011.L
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 9
QW-R101-011.L
78TXXA
PARAMETER
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
SYMBOL
RATING
UNIT
Input Voltage
V
IN
35
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
-40~ +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 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
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
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
MIN
4.80
4.75
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
40
-0.6
80
1.8
250
2.0
TYP
6.0
MAX
6.24
6.30
60
30
60
60
8.0
1.0
0.5
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
MIN
5.76
5.70
59
45
-0.7
75
1.8
250
2.0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 9
QW-R101-011.L
78TXXA
ELECTRICAL CHARACTERISTICS(Cont.)
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
LINEAR INTEGRATED CIRCUIT
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
TEST CONDITIONS
T
J
=25°C, I
OUT
=5mA - 1.0A
V
IN
=11.5V~24V,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
=11.5V~25 V, T
J
=25°C
V
IN
=11.5V~24V, T
J
=25°C, I
OUT
=1.0A
T
J
=25°C, I
OUT
≦
1.0A
V
IN
=11.5V~24V
I
OUT
=5mA–1.0A
10Hz
≦
f
≦
100kHz
I
OUT
=5mA
V
IN
=12.5V~22.5V,
f=120Hz, T
J
=25°C
T
J
=25°C
V
IN
=35V, T
J
=25°C
T
J
=25°C
MIN
6.72
6.65
TYP
7.0
MAX
7.28
7.35
70
35
70
70
8.0
1.0
0.5
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
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 9
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
TYP
9.0
MAX
9.36
9.45
90
45
90
90
8.0
1.0
0.5
FOR 78T09A
(V
IN
=15V, 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
8.64
8.55
56
58
-1.1
72
1.8
250
2.0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
QW-R101-011.L
嵌入式系统
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