UNISONIC TECHNOLOGIES CO., LTD
78TXXA
LINEAR INTEGRATED CIRCUIT
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
1
TO-263
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.
1
FEATURES
TO-263-3
* 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
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
78TXXAL-TQ2-R
78TXXAG-TQ2-R
78TXXAL-TQ2-T
78TXXAG-TQ2-T
78TXXAL-TQ3-R
78TXXAG-TQ3-R
78TXXAL-TQ3-T
78TXXAG-TQ3-T
Note: Pin Code: I: Input
G: GND
O: Output
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Copyright © 2013 Unisonic Technologies Co., Ltd.
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
1 of 9
QW-R101-011.L
78TXXA
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
TO-263
TO-263-3
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
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MARKING
2 of 9
QW-R101-011.L
78TXXA
LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
INPUT
1
R13
R17
T10
Z2
R9
T8
T14
T9
R14
T12
R19
R18
R12
T13
T11
R11
T5
R10
OUTPUT
3
T6
R8
R15
R5
T4
Z1
T15
R4
R6
T7
R1
R7
C1
R2
T3
R16
T1
T2
R3
GND
2
APPLICATION CIRCUIT
VIN
1
UTC 78TXXA
CI
0.33 µF
2
3
VOUT
CO
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
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
PARAMETER
SYMBOL
RATING
UNIT
Input Voltage
VIN
35
V
Output Current
IOUT
1
A
Power Dissipation
PD
Internally Limited
W
Junction Temperature
TJ
+125
°С
Operating Junction Temperature
TOPR
-40~ +85
°С
Storage Temperature
TSTG
-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
(TJ= 0°С-125°С,CI =0.33uF,CO=0.1uF,unless otherwise specified) (Note 1)
FOR 78T05A (VIN=10V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
FOR 78T06A (VIN=11V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
TEST CONDITIONS
TJ=25°C, IOUT=5mA - 1.0A
VIN=7.5V~20V,IOUT=5mA-1.0A, PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=7V~25V, TJ=25°C
VIN=7.5V~20V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=7.5V~20V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=8V-18V, f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
TEST CONDITIONS
TJ=25°C, IOUT=5mA-1.0A
VIN=8.5V~21V,IOUT=5mA-1.0A, PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=8V~25V, TJ=25°C
VIN=8.5V~21V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=8.5V~21V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=9V-19V, f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
UNISONIC TECHNOLOGIES CO., LTD
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MIN
4.80
4.75
62
MIN
5.76
5.70
59
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
MAX
6.24
6.30
60
30
60
60
8.0
1.0
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
40
-0.6
80
1.8
250
2.0
TYP
6.0
45
-0.7
75
1.8
250
2.0
4 of 9
QW-R101-011.L
78TXXA
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
FOR 78T07A (VIN=13V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
FOR 78T08A (VIN=14V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
FOR 78T09A (VIN=15V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
TEST CONDITIONS
TJ=25°C, IOUT=5mA-1.0A
VIN=9.5V~22V,IOUT=5mA-1.0A,PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=9V~25V, TJ=25°C
VIN=9.5V~22V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=9.5V~22V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=10V-20V, f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
MIN
6.72
6.65
TEST CONDITIONS
TJ=25°C, IOUT=5mA-1.0A
VIN=10.5V~23V,IOUT=5mA-1.0A,PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=10.5V~25V, TJ=25°C
VIN=10.5V~23V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=10.5V~23V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=11.5V~21.5V, f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
MIN
7.68
7.60
TEST CONDITIONS
TJ=25°C, IOUT=5mA - 1.0A
VIN=11.5V~24V,IOUT=5mA-1.0A,PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=11.5V~25 V, TJ=25°C
VIN=11.5V~24V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=11.5V~24V
IOUT=5mA–1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=12.5V~22.5V,
f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
MIN
8.64
8.55
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www.unisonic.com.tw
59
56
56
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
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
MAX
9.36
9.45
90
45
90
90
8.0
1.0
0.5
58
-1.1
72
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
1.8
250
2.0
A
mA
V
50
-0.8
75
1.7
250
2.0
TYP
8.0
58
-0.9
72
1.8
250
2.0
TYP
9.0
5 of 9
QW-R101-011.L
78TXXA
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
FOR 78T10A (VIN=16V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
FOR 78T12A (VIN=19V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
FOR 78T15A (VIN=23V, IOUT=0.5A)
PARAMETER
SYMBOL
Output Voltage
VOUT
Load Regulation
ΔVOUT
Line regulation
ΔVOUT
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
IQ
ΔIQ
eN
ΔVo/ΔT
RR
IPEAK
ISC
VD
TEST CONDITIONS
TJ=25°C, IOUT=5mA-1.0A
VIN=12.5V~25V,IOUT=5mA-1.0A,PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=13V~25V, TJ=25°C
VIN=13V~25V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=12.6V~25V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=13V-23V, f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
MIN
9.60
9.50
TEST CONDITIONS
TJ=25°C, IOUT=5mA-1.0A
VIN=14.5V~27V,IOUT=5mA-1.0A,PD≦15W
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=14.5V~30V, TJ=25°C
VIN=14.6V~27V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=14.5V~30V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=15V-25V, f=120Hz, TJ=25°C
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
MIN
11.52
11.40
55
TEST CONDITIONS
MIN
14.40
TJ=25°C, IOUT=5mA-1.0A
VIN=17.5V~30V,IOUT=5mA-1.0A,PD≦15W 14.25
TJ=25°C, IOUT=5mA-1.0A
TJ=25°C, IOUT=0.25A-0.75A
VIN=18.5V~30V, TJ=25°C
VIN=17.7V~30V, TJ=25°C, IOUT=1.0A
TJ=25°C, IOUT≦1.0A
VIN=17.5V~30V
IOUT=5mA-1.0A
10Hz≦f≦100kHz
IOUT=5mA
VIN=18.5V~28.5V, f=120Hz, TJ=25°C
54
TJ=25°C
VIN=35V, TJ=25°C
TJ=25°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
56
TYP
10.0
58
-1.1
72
1.8
250
2.0
TYP
12.0
75
-1.5
72
1.8
250
2.0
TYP
15.0
90
-1.8
70
1.8
250
2.0
MAX UNIT
10.40
V
10.50
V
100
mV
50
mV
100
mV
100
mV
8.0
mA
1.0
mA
0.5
mA
μV
mV/°C
dB
A
mA
V
MAX UNIT
12.48
V
12.60
V
120
mV
60
mV
120
mV
120
mV
8.0
mA
1.0
mA
0.5
mA
μV
mV/°C
dB
A
mA
V
MAX
15.60
15.75
150
75
150
150
8.0
1.0
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
mA
V
6 of 9
QW-R101-011.L
78TXXA
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
FOR 78T18A (VIN=27V, IOUT=0.5A)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
17.28 18.0 18.72
V
TJ=25°C, IOUT=5mA-1.0A
Output Voltage
VOUT
VIN=21V~33V, IOUT=5mA-1.0A, PD≦15W 17.10
18.90
V
180
mV
TJ=25°C, IOUT=5mA-1.0A
Load Regulation
ΔVOUT
TJ=25°C, IOUT=0.25A-0.75A
90
mV
180
mV
VIN=21V~33V, TJ=25°C
Line regulation
ΔVOUT
VIN=21V~33V, TJ=25°C, IOUT=1.0A
180
mV
Quiescent Current
IQ
TJ=25°C, IOUT≦1.0A
8.0
mA
1.0
mA
VIN=21.5V~33V
Quiescent Current Change
ΔIQ
IOUT=5mA-1.0A
0.5
mA
Output Noise Voltage
eN
10Hz≦f≦100kHz
110
μV
Temperature coefficient of Vo
ΔVo/ΔT IOUT=5mA
-2.2
mV/°C
Ripple Rejection
RR
VIN=22V-32V, f=120Hz, TJ=25°C
53
69
dB
Peak Output Current
IPEAK
TJ=25°C
1.8
A
Short-Circuit Current
ISC
VIN=35V, TJ=25°C
250
mA
Dropout Voltage
VD
TJ=25°C
2.0
V
Note 1: The Maximum steady state usable output current are dependent on input voltage, heat sinking, lead length
of the package and copper pattern of PCB. The data above represents pulse test conditions with junction
temperatures specified at the initiation of test.
Note 2: Power dissipation
