UNISONIC TECHNOLOGIES CO., LTD 78TXX

UNISONIC TECHNOLOGIES CO., LTD
78TXX
LINEAR INTEGRATED CIRCUIT
3-TERMINALS 0.5A POSITIVE
VOLTAGE REGULATOR

DESCRIPTION
The UTC 78TXX family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required supply
current up to 0.5 A.

FEATURE
* Output current up to 0.5 A
* Fixed output voltage of 5V, 6V, 8V, 9V, 12V, 15V and 18V available
* Thermal overload shutdown protection
* Short circuit current limiting
* Output transistor SOA protection

ORDERING INFORMATION
Note:
Ordering Number
Lead Free
Halogen Free
78TXXL-TA3-T
78TXXG-TA3-T
78TXXL-TQ2-R
78TXXG-TQ2-R
78TXXL-TQ2-T
78TXXG-TQ2-T
78TXXL-TQ3-R
78TXXG-TQ3-R
78TXXL-TQ3-T
78TXXG-TQ3-T
1. xx: output voltage, refer to Marking Information
2. Pin Code: I: Input
G: GND O: Output
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Copyright © 2014 Unisonic Technologies Co., Ltd
Package
TO-220
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
I
G
O
Packing
Tube
Tape Reel
Tube
Tape Reel
Tube
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QW-R101-021.F
78TXX

MARKING INFORMATION
PACKAGE
TO-220
TO-263
TO-263-3

LINEAR INTEGRATED CIRCUIT
VOLTAGE CODE
05 : 5V
06 : 6V
08 : 8V
09 : 9V
12 : 12V
15 : 15V
18 : 18V
MARKING
BLOCK DIAGRAM
INPUT
1
R13
R17
T10
Z2
R9
T8
T12
T14
T9
R14
R19
R18
R12
T13
T11
R11
T5
T6
R15
R10
OUTPUT
3
R8
R5
T4
Z1
T15
R4
R6
T7
R1
R16
R2
R7
C1
T3
T1
T2
GND
R3
2

TYPICAL APPLICATION CIRCUIT
VIN
1
UTC78TXX
CI
0.33 μF
2
3
VoUT
CO
0.1 μF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as
close as possible to the regulators.
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QW-R101-021.F
78TXX

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
35
V
Output Current
IOUT
0.5
A
Power Dissipation
PD
Internally Limited
W
Junction Temperature
TJ
0~+125
°C
Storage Temperature
TSTG
-65 ~ +150
°C
Notes:1. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
The device could be damaged beyond Absolute maximum ratings.
2. 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 are showed as electrical characteristics table
represents pulse test conditions with junction temperatures specified at the initiation of test.

ELECTRICAL CHARACTERISTICS (TJ=25°C,CI =0.33uF,CO =0.1uF,PD≦7W, unless otherwise specified)
For 78T05 (VIN=10V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
For 78T06 (VIN=11V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
SYMBOL
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN =7.5~20V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200 mA
VIN =7V~25V
VOUT
VIN =7.5~20V, IOUT=0.5A
IQ
IOUT=0.5A
VUT =7.5~20V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN =8~18V, f=120Hz
IPEAK
ISC
VIN=35V
VD
MIN
4.8
4.75
SYMBOL
MIN
5.76
5.7
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN=8.5~21V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200mA
VIN=8~25V
VOUT
VIN=8.5~21V, IOUT=0.5A
IQ
IOUT=0.5A
VIN =8.5~21V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN =9~19V, f=120Hz
IPEAK
ISC
VIN=35V
VD
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62
59
TYP
5
MAX
5.2
5.25
100
50
100
50
8
1
0.5
40
-0.6
80
1.2
250
2
TYP
6
45
-0.7
75
1.2
250
2
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
A
mA
V
MAX
6.24
6.3
60
30
60
60
8
1
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
A
mA
V
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QW-R101-021.F
78TXX

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For 78T08 (VIN=14V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
For 78T09 (VIN=15V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
For 78T12 (VIN=19V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
SYMBOL
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN=10.5~23V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200mA
VIN =10.5~25V
VOUT
VIN =10.5~23V, IOUT=0.5A
IQ
IOUT=0.5A
VIN =10.5~23V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN =11.5~21.5V, f=120Hz
IPEAK
ISC
VIN=35V
VD
MIN
7.68
7.6
SYMBOL
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN =11.5~24V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200mA
VIN =11.5~25V
VOUT
VIN =11.5~24V, IOUT=0.5A
IQ
IOUT=0.5A
VIN=11.5~24V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN=12.5~22.5V, f=120Hz
IPEAK
ISC
VIN=35V
VD
MIN
8.64
8.55
SYMBOL
MIN
11.52
11.4
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN =14.5~27V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200mA
VIN=14.5~30V
VOUT
VIN=14.6~27V, IOUT=0.5A
IQ
IOUT=0.5A
VIN =14.5~30V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN =15~25V, f=120Hz
IPEAK
ISC
VIN=35V
VD
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56
56
55
TYP
8
MAX
8.32
8.4
80
40
80
80
8
1
0.5
58
-0.9
72
1.2
250
2
TYP
9
dB
A
mA
V
MAX
9.36
9.45
90
45
90
90
8
1
0.5
58
-1.1
72
1.2
250
2
TYP
12
75
-1.5
72
1.2
250
2
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
A
mA
V
MAX
12.48
12.6
120
60
120
120
8
1
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
A
mA
V
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QW-R101-021.F
78TXX

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For 78T15 (VIN=23V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
For 78T18 (VIN=27V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
SYMBOL
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN =17.5~30V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200mA
VIN=18.5~30V
VOUT
VIN=17.5~30V, IOUT=0.5A
IQ
IOUT=0.5A
VIN=17.5~30V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN=18.5~28.5V, f=120Hz
IPEAK
ISC
VIN=35V
VD
MIN
14.4
14.25
SYMBOL
MIN
17.28
17.1
TEST CONDITIONS
IOUT=5mA~0.5A
VOUT
VIN=21~33V, IOUT=5mA~0.5A
IOUT=5mA~0.5A
VOUT
IOUT=5mA~200mA
VIN=21~33V
VOUT
VIN=21~33V, IOUT =0.5A
IQ
IOUT=0.5A
VIN=21.5~33V
IQ
IOUT=5mA~0.5A
eN
10Hz≦f≦100kHz
VOUT/T IOUT=5mA
RR
VIN =22~32V, f=120Hz
IPEAK
ISC
VIN=35V
VD
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54
53
TYP
15
MAX
15.6
15.75
150
75
150
150
8
1
0.5
90
-1.8
70
1.2
250
2
TYP
18
110
-2.2
69
1.2
250
2
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
A
mA
V
MAX
18.72
18.9
180
90
180
180
8
1
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
A
mA
V
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QW-R101-021.F
78TXX
Output Voltage, VOUT (V)
Circuit Operating Current, IBIAS (mA)
TYPICAL CHARACTERISTICS
6
Output Voltage vs. Junction Temperature
Bias Current vs. Junction Temperature
5.5
5.4
4
3
Output Voltage, VOUT (V)
Bias Current, IB (mA)
5
VIN=10V
IOUT=0A
2
1
-25
5.3
5.2
5.1
5.0
4.9
4.8
4.7
-5 15 35 55 75 95 115 135 155
Junction Temperature, TJ (°C)
-25
Dropout Voltage vs. Junction Temperature
2
1.6
1.4
1.2
1
1.6
IOUT=0.1A
IOUT=0A
0.8
0.6
0.4
-5 15 35 55 75 95 115 135 155
Junction Temperature, TJ (°C)
Short Current vs. Input Voltage
1.4
IOUT=0.5A
Short Current, ISC (A)
1.8
VIN=10V
IOUT=5.0mA
4.6
4.5
0
Dropout Voltage, VD (V)

LINEAR INTEGRATED CIRCUIT
1.2
1
0.8
0.6
0.4
0.2
0.2
0
-40 -20 0 20 40 60 80 100 120 140
Junction Temperature, TJ (°C)
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0
0 3 6 9 12 15 18 21 24 27 30 33 36 40
Input Voltage, VIN (V)
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QW-R101-021.F
78TXX
Output Voltage
Deviation (mV)
Output Voltage
Deviation (mV)
TYPICAL CHARACTERISTICS (Cont.)
Load Current
(mA)
Input Voltage
Change (V)

LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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QW-R101-021.F