UNISONIC TECHNOLOGIES CO.,
78DxxA
Linear Integrated Circuit
www.unisonic.com.tw
1
Copyright 2005 Unisonic Technologies Co.,
QW-R101-010,F
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.
FEATURES
* Peak output current up to 1A.
* Fixed output voltage of 3.3V, 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.
TO-252
1
*Pb-free plating product number: 78DxxAL
PIN CONFIGURATION
PIN NO.
PIN NAME
1 Input
2 Ground
3 Output
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
Package
Packing
78DxxA-TM3-T 78DxxAL-TM3-T
TO-251 Tube
78DxxA-TN3-R 78DxxAL-TN3-R
TO-252 Tape
Reel
78DxxA-TN3-T 78DxxAL-TN3-T
TO-252 Tube
Note: xx: Output Voltage, refer to below table.
OUTPUT VOLTAGE INFORMATION
Output Voltage
Code
3.3V 33
4.7V 47
5V 05
6V 06
7V 07
8V 08
9V 09
10V 10
12V 12
15V 15
18V 18
24V 24
78DxxA
Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD
2
www.unisonic.com.tw
QW-R101-010,F
BLOCK DIAGRAM
3
1
2
G ND
O UTPUT
INPUT
R 13
R 17
R 9
Z2
T 12
T 14
R 19
R 18
R 12
R 11
R 10
R 8
T 8
T 9
T 13
T 10
R 14
T 11
T 5
T 6
R 5
T 4
Z1
R 15
T 15
R 16
R 1
R 2
R4
C 1
R6
T 7
T 3
T 1
T 2
R 3
R 7
APPLICATION CIRCUIT
UTC 78DXXA
3
2
1
C0
0.1
F
C1
0.33
F
Vi
Vo
Note:Bypass capacitors are recommended for optimum stability and transient response and should be located
as close as possible to the regulators.
78DxxA
Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD
3
www.unisonic.com.tw
QW-R101-010,F
ABSOLUATE MAXIUM RATINGS
(Ta = 25
,unless otherwise specified)
PARAMETER SYMBOL
RATINGS
UNIT
V
OUT
=3.3~18V
35
Input Voltage
V
OUT
=20~24V
V
IN
40
V
Output Current
I
OUT
1 A
Power Dissipation
P
D
Internally
Limited W
Operating Temperature Range
T
OPR
-40 ~ +85
C
Operating Junction Temperature
T
J
0~+125
C
Storage Temperature Range
T
STG
-40 ~ +150
C
Note: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 device is guaranteed to meet performance specifications within 0
~70
operating temperature range
and assured by design from 40
~85
.
3.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
(T
J
=25
, P
D
15W, unless otherwise specified)
For 78D33A
(V
IN
=5.8V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA ~ 1.0A
3.168 3.30 3.432
V
Output Voltage
V
OUT
V
IN
=5.8~18.3V, I
OUT
=5mA~1.0A 3.135 3.465 V
I
OUT
=5mA~1.0A
33
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
17
mV
V
IN
=5.8~18.3V
33
mV
Line Regulation
V
OUT
V
IN
=5.8~18.3V, I
OUT
=1.0A
33
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=5.8~18.3V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
55
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.4
mV/
C
Ripple Rejection
RR
V
IN
=6.3~16.3V,f=120Hz
57
dB
Peak Output Current
I
PEAK
1.8
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0 V
For 78D47A
(V
IN
=9.7V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
4.512 4.70 4.888 V
Output Voltage
V
OUT
V
IN
=5.8~18.3V, I
OUT
=5mA~1.0A
4.465 4.935 V
I
OUT
=5mA~1.0A
47
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
24
mV
V
IN
=5.8~18.3V
47
mV
Line Regulation
V
OUT
V
IN
=5.8~18.3V, I
OUT
=1.0A
47
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=5.8~18.3V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
40
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.6 mV/
C
Ripple Rejection
RR
V
IN
=6.3~16.3V,f=120Hz
62 80 dB
Peak Output Current
I
PEAK
1.8 A
Short-Circuit Current
I
SC
V
IN
=35V
250 mA
Dropout Voltage
V
D
2.0 V
78DxxA
Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD
4
www.unisonic.com.tw
QW-R101-010,F
ELECTRICAL CHARACTERISTICS(Cont.)
For 78D05A
(V
IN
=10V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
4.80 5.0 5.20
V
Output Voltage
V
OUT
V
IN
=7.5~20V, I
OUT
=5mA~1.0A
4.75 5.25
V
I
OUT
=5mA~1.0A
50
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
25
mV
V
IN
=7~25V
50
mV
Line Regulation
V
OUT
V
IN
=7.5~20V, I
OUT
=1.0A
50
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=7.5~20V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
40
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.6
mV/
C
Ripple Rejection
RR
V
IN
=8~18V,f=120Hz
62 80
dB
Peak Output Current
I
PEAK
1.8
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0
V
For 78D06A
(V
IN
=11V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
5.76 6.0 6.24
V
Output Voltage
V
OUT
V
IN
=8.5~21V, I
OUT
=5mA~1.0A
5.7 6.3
V
I
OUT
=5mA~1.0A
60
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
30
mV
V
IN
=8~25V
60
mV
Line Regulation
V
OUT
V
IN
=8.5~21V, I
OUT
=1.0A
60
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=8.5~21V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
45
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.7
mV/
C
Ripple Rejection
RR
V
IN
=9~19V,f=120Hz
59 75
dB
Peak Output Current
I
PEAK
1.8
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0
V
For 78D07A
(V
IN
=13V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
6.72 7.0 7.28
V
Output Voltage
V
OUT
V
IN
=9.5~22V, I
OUT
=5mA~1.0A
6.65 7.35
V
I
OUT
=5mA~1.0A
70
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
35
mV
V
IN
=9~25V
70
mV
Line Regulation
V
OUT
V
IN
=9.5~22V, I
OUT
=1.0A
70
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=9.5~22V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
50
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.8
mV/
C
Ripple Rejection
RR
V
IN
=10~20V,f=120Hz
59 75
dB
Peak Output Current
I
PEAK
1.7
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0
V
78DxxA
Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD
5
www.unisonic.com.tw
QW-R101-010,F
ELECTRICAL CHARACTERISTICS(Cont.)
For 78D08A
(V
IN
=14V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
7.68 8.0 8.32
V
Output Voltage
V
OUT
V
IN
=10.5~23V, I
OUT
=5mA~1.0A
7.6 8.4
V
I
OUT
=5mA~1.0A
80
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
40
mV
V
IN
=10.5~25V
80
mV
Line Regulation
V
OUT
V
IN
=10.5~23V, I
OUT
=1.0A
80
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=10.5~23V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
58
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.9
mV/
C
Ripple Rejection
RR
V
IN
=11.5~21.5V,f=120Hz
56 72
dB
Peak Output Current
I
PEAK
1.8
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0
V
For 78D09A
(V
IN
=15V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
7.68 8.0 8.32
V
Output Voltage
V
OUT
V
IN
=11.5~24V, I
OUT
=5mA~1.0A
7.6 8.4
V
I
OUT
=5mA~1.0A
80
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
40
mV
V
IN
=11.5~25V
80
mV
Line Regulation
V
OUT
V
IN
=11.5~24V, I
OUT
=1.0A
80
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=11.5~24V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
58
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-0.9
mV/
C
Ripple Rejection
RR
V
IN
=12.5~22.5V,f=120Hz
56 72
dB
Peak Output Current
I
PEAK
1.8
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0
V
For 78D10A
(V
IN
=16V, I
OUT
=0.5A, C1=0.33uF, C0=0.1uF)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
I
OUT
=5mA~1.0A
9.60 10.0 10.40
V
Output Voltage
V
OUT
V
IN
=12.5~25V, I
OUT
=5mA~1.0A
9.5 10.5
V
I
OUT
=5mA~1.0A
100
mV
Load Regulation
V
OUT
I
OUT
=0.25A~0.75A
50
mV
V
IN
=13~25V
100
mV
Line Regulation
V
OUT
V
IN
=13~25V, I
OUT
=1.0A
100
mV
Quiescent Current
I
Q
I
OUT
1.0A
8.0
mA
V
IN
=12.6V~25V
1.0
mA
Quiescent Current Change
I
Q
I
OUT
=5mA~1.0A
0.5
mA
Output Noise Voltage
eN
10Hz
f
100kHz
58
V
Temperature coefficient of V
OUT
V
OUT
/
T I
OUT
=5mA
-1.1
mV/
C
Ripple Rejection
RR
V
IN
=13~23V,f=120Hz
56 72
dB
Peak Output Current
I
PEAK
1.8
A
Short-Circuit Current
I
SC
V
IN
=35V
250
mA
Dropout Voltage
V
D
2.0
V
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