UNISONIC TECHNOLOGIES CO., LTD
78DXXA
3-TERMINALS 1A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC
78DXXA
family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 1 A.
LINEAR INTEGRATED CIRCUIT
1
TO-252
1
TO-252-3
FEATURES
* Peak output current up to 1A.
* 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
SOT-223
1
TO-251
ORDERING INFORMATION
Ordering Number
Lead Free
78DXXAL-AA3-R
78DXXAL-TM3-T
78DXXAL-TN3-R
78DXXAL-TN3-T
78DXXAL-TNA-R
78DXXAL-TNA-T
Note: Pin Code: I: Input
Halogen Free
78DXXAG-AA3-R
78DXXAG-TM3-T
78DXXAG-TN3-R
78DXXAG-TN3-T
78DXXAG-TNA-R
78DXXAG-TNA-T
G: GND
O: Output
Package
SOT-223
TO-251
TO-252
TO-252
TO-252-3
TO-252-3
Pin Assignment
1
2
3
I
G
O
I
G
O
I
G
O
I
G
O
I
G
O
I
G
O
Packing
Tape Reel
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Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 9
QW-R101-010,P
78DXXA
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-223
TO-251
TO-252
TO-252-3
05:
06:
08:
09:
10:
12:
15:
18:
5V
6V
8V
9V
10V
12V
15V
18V
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QW-R101-010,P
78DXXA
BLOCK DIAGRAM
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
R16
R1
R2
C1
T3
R7
T1
T2
R3
GND
2
APPLICATION CIRCUIT
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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3 of 9
QW-R101-010,P
78DXXA
PARAMETER
Input Voltage
Output Current
Power Dissipation (T
C
=25°C)
SOT-223
TO-251/TO-252
TO-252-3
SYMBOL
V
IN
I
OUT
P
D
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25°C, unless otherwise specified)
RATINGS
35
1
8.3
10
UNIT
V
A
W
Junction Temperature
T
J
+150
°C
Operating Temperature
T
OPR
-40 ~ +85
°C
Storage Temperature
T
STG
-55 ~ +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.
THERMAL DATA
PARAMETER
Junction to Ambient
SOT-223
TO-251/TO-252
TO-252-3
SOT-223
TO-251/TO-252
TO-252-3
SYMBOL
θ
JA
RATINGS
150
112
15
θ
JC
12.5
°C/W
UNIT
°C/W
Junction to Case
ELECTRICAL CHARACTERISTICS
(T
J
=25°C, C
I
=0.33uF, C
O
=0.1uF, P
D
≤15W,
unless otherwise specified)
For 78D05A
(V
IN
=10V, I
OUT
=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of V
OUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
SYMBOL
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
eN
ΔV
OUT
/ΔT
RR
I
PEAK
I
SC
V
D
TEST CONDITIONS
I
OUT
=5mA~1.0A
V
IN
=7.5~20V, I
OUT
=5mA~1.0A
I
OUT
=5mA~1.0A
I
OUT
=0.25A~0.75A
V
IN
=7~25V
V
IN
=7.5~20V, I
OUT
=1.0A
I
OUT
≤1.0A
V
IN
=7.5~20V
I
OUT
=5mA~1.0A
10Hz≤f≤100kHz
I
OUT
=5mA
V
IN
=8~18V,f=120Hz
V
IN
=35V
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
62
40
-0.6
80
1.8
250
2.0
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QW-R101-010,P
78DXXA
ELECTRICAL CHARACTERISTICS(Cont.)
For 78D06A
(V
IN
=11V, I
OUT
=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
SYMBOL
V
OUT
ΔV
OUT
ΔV
OUT
I
Q
ΔI
Q
LINEAR INTEGRATED CIRCUIT
Output Noise Voltage
eN
Temperature coefficient of V
OUT
ΔV
OUT
/ΔT
Ripple Rejection
RR
Peak Output Current
I
PEAK
Short-Circuit Current
I
SC
V
IN
=35V
Dropout Voltage
V
D
For 78D07A
(V
IN
=13V, I
OUT
=0.5A)
PARAMETER
SYMBOL
TEST CONDITIONS
I
OUT
=5mA~1.0A
Output Voltage
V
OUT
V
IN
=9.5~22V, I
OUT
=5mA~1.0A
I
OUT
=5mA~1.0A
Load Regulation
ΔV
OUT
I
OUT
=0.25A~0.75A
V
IN
=9~25V
Line Regulation
ΔV
OUT
V
IN
=9.5~22V, I
OUT
=1.0A
Quiescent Current
I
Q
I
OUT
≤1.0A
V
IN
=9.5~22V
Quiescent Current Change
ΔI
Q
I
OUT
=5mA~1.0A
Output Noise Voltage
eN
10Hz≤f≤100kHz
Temperature coefficient of V
OUT
ΔV
OUT
/ΔT I
OUT
=5mA
Ripple Rejection
RR
V
IN
=10~20V,f=120Hz
Peak Output Current
I
PEAK
Short-Circuit Current
I
SC
V
IN
=35V
Dropout Voltage
V
D
For 78D08A
(V
IN
=14V, I
OUT
=0.5A)
PARAMETER
SYMBOL
TEST CONDITIONS
I
OUT
=5mA~1.0A
Output Voltage
V
OUT
V
IN
=10.5~23V, I
OUT
=5mA~1.0A
I
OUT
=5mA~1.0A
Load Regulation
ΔV
OUT
I
OUT
=0.25A~0.75A
V
IN
=10.5~25V
Line Regulation
ΔV
OUT
V
IN
=10.5~23V, I
OUT
=1.0A
Quiescent Current
I
Q
I
OUT
≤1.0A
V
IN
=10.5~23V
Quiescent Current Change
ΔI
Q
I
OUT
=5mA~1.0A
Output Noise Voltage
eN
10Hz≤f≤100kHz
Temperature coefficient of V
OUT
ΔV
OUT
/ΔT I
OUT
=5mA
Ripple Rejection
RR
V
IN
=11.5~21.5V,f=120Hz
Peak Output Current
I
PEAK
Short-Circuit Current
I
SC
V
IN
=35V
Dropout Voltage
V
D
TEST CONDITIONS
I
OUT
=5mA~1.0A
V
IN
=8.5~21V, I
OUT
=5mA~1.0A
I
OUT
=5mA~1.0A
I
OUT
=0.25A~0.75A
V
IN
=8~25V
V
IN
=8.5~21V, I
OUT
=1.0A
I
OUT
≤1.0A
V
IN
=8.5~21V
I
OUT
=5mA~1.0A
10Hz≤f≤100kHz
I
OUT
=5mA
V
IN
=9~19V,f=120Hz
MIN
5.76
5.7
TYP
6.0
MAX
6.24
6.3
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
MIN
6.72
6.65
59
50
-0.8
75
1.7
250
2.0
TYP
8.0
MAX
8.32
8.4
80
40
80
80
8.0
1.0
0.5
MIN
7.68
7.6
56
58
-0.9
72
1.8
250
2.0
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www.unisonic.com.tw
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QW-R101-010,P
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