UNISONIC TECHNOLOGIES CO., LTD
78LXX
LINEAR INTEGRATED CIRCUIT
3-TERMINAL 0.1A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC 78LXX family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 100mA.
FEATURES
* Output current up to 100mA
* Fixed output voltage of 5V, 6V, 8V, 9V, 10V, 12V, 15V and 18V
available
* Thermal overload shutdown protection
* Short circuit current limiting
ORDERING INFORMATION
Ordering Number
Lead Free Halogen Free 1 2 3 4 5 6 7 8
- 78LXXG-AB3-R SOT-89 O G I - - - - - Tape Reel
- 78LXXG-AB3-C-R SOT-89 G I O - - - - - Tape Reel
- 78LXXG-AF5-R SOT-25 G I O N N Tape Reel
- 78LXXG-S08-R SOP-8 O G G N N G G I Tape Reel
78LXXL-T92-B 78LXXG-T92-B TO-92 O G I - - - - - Tape Box
78LXXL-T92-K 78LXXG-T92-K TO-92 O G I - - - - - Bulk
78LXXL-T9N-B 78LXXG-T9N-B TO-92NL O G I - - - - - Tape Box
78LXXL-T9N-K 78LXXG-T9N-K TO-92NL O G I - - - - - Bulk
Note: 1. XX: Output Voltage, refer to Marking Information.
2. Pin Assignment: O: Output G: GND I: Input N: No Connection
Package
Pin Assignment
Packing
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78LXX LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
SOT-89
SOT-25
SOP-8
TO-92
TO-92NL
05:5.0V
06:6.0V
08:8.0V
09:9.0V
10:10V
12:12V
15:15V
18:18V
Date Code
Voltage Code
UTC
78LXX
G
Lot Code
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78LXX LINEAR INTEGRATED CIRCUIT
X
X
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
=5~9V
V
Input Voltage
OUT
V
=10~18V 35
OUT
Output Current I
V
IN
100 mA
OUT
SOT-89
Power Dissipation
SOT-25 240 mW
SOP-8 300 mW
PD
TO-92/TO-92NL 625 mW
Junction Temperature TJ +150 °C
Operating Temperature T
Storage Temperature T
-40~+85 °C
OPR
-55~+150 °C
STG
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
30
V
350 mW
For UTC78L05 (V
=10V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ=25°C 4.80 5.0 5.20 V
Output Voltage V
Load Regulation V
Line regulation V
Quiescent Current IQ VIN=10V,I
Quiescent Current Change IQ
7V≤VIN≤20V,I
OUT
7V≤VIN≤V
T
=25°C,I
J
OUT
TJ=25°C,I
7V≤V
≤20V,TJ=25°C 8 150 mV
OUT
IN
8V≤VIN≤20V,TJ=25°C 6 100 mV
≤20V 1.5 mA
8V≤V
IN
=1mA-40mA 4.75 5.25 V
OUT
,I
MA
OUT
OUT
OUT
=1mA-70mA 4.75 5.25 V (note 2)
OUT
=1mA-100mA 15 60 mV
=1mA-40mA 8 30 mV
=0mA,TJ=25°C 2.0 5.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 40 μV
Temperature coefficient of V
VO/T I
OUT
=5mA -0.65 mV/°C
OUT
Ripple Rejection RR 8V≤VIN≤20V,f=120Hz,TJ=25°C 41 80 dB
Dropout Voltage VD TJ=25°C 1.7 V
For UTC78L06 (V
=12V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 5.76 6.0 6.24 V
T
J
Output Voltage V
Load Regulation ∆V
Line regulation ∆V
Quiescent Current IQ VIN=12V,I
Quiescent Current Change ∆IQ
8.5V≤VIN≤20V,I
OUT
8.5V≤VIN≤V
T
=25°C,I
J
OUT
TJ=25°C,I
8.5V≤V
OUT
9V≤VIN≤20V,TJ=25°C 54 125 mV
9V≤V
OUT
OUT
≤20V,TJ=25°C 64 175 mV
IN
OUT
≤20V 1.5 mA
IN
=1mA-40mA 5.70 6.30 V
OUT
, I
MA
=1mA-70mA 5.70 6.30 V(note 2)
OUT
=1mA-100mA 16 80 mV
=1mA-40mA 9 40 mV
=0mA,TJ=25°C 3.9 6.0 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 49 μV
Temperature coefficient of V
∆VO/∆T I
OUT
=5mA -0.75 mV/°C
OUT
Ripple Rejection RR 10V≤VIN≤20V,f=120Hz, TJ=25°C 40 46 dB
Dropout Voltage VD TJ=25°C 1.7 V
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78LXX LINEAR INTEGRATED CIRCUIT
X
X
X
ELECTRICAL CHARACTERISTICS (Cont.)
For UTC78L08 (V
=14V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 7.68 8.0 8.32 V
T
J
Output Voltage V
Load Regulation ∆V
Line regulation ∆V
Quiescent Current IQ VIN=14V,I
Quiescent Current Change ∆IQ
10.5V≤VIN≤23V,I
OUT
10.5V≤VIN≤V
T
=25°C,I
J
OUT
TJ=25°C,I
10.5V≤V
OUT
11V≤VIN≤23V,TJ=25°C 8 125 mV
11V≤V
=1mA-100mA 18 80 mV
OUT
=1mA-40mA 10 40 mV
OUT
≤23V,TJ=25°C 10 175 mV
IN
=0mA,TJ=25°C 2.0 5.5 mA
OUT
≤23V 1.5 mA
IN
=1mA-40mA 7.60 8.40 V
OUT
, I
MA
=1mA-70mA 7.60 8.40 V(note 2)
OUT
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 49 μV
Temperature coefficient of Vo ∆VO/∆T I
=5mA
OUT
-0.75
mV/C
Ripple Rejection RR 11V≤VIN≤23V,f=120Hz,TJ=25°C 39 70 dB
Dropout Voltage VD TJ=25°C 1.7 V
For UTC78L09 (V
=15V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 8.64 9.0 9.36 V
T
J
Output Voltage V
Load Regulation V
Line regulation V
Quiescent Current IQ VIN=15V,I
Quiescent Current Change IQ
11.5V≤VIN≤24V,I
OUT
11.5V≤VIN≤V
=25°C,I
T
J
OUT
TJ=25°C,I
11.5V≤V
OUT
13V≤VIN≤24V,TJ=25°C 100 150 mV
13V≤V
=1mA-100mA 19 90 mV
OUT
=1mA-40mA 11 40 mV
OUT
≤24V,TJ=25°C 90 200 mV
IN
=0mA,TJ=25°C 2.0 6.0 mA
OUT
≤24V 1.5 mA
IN
=1mA-40mA 8.55 9.45 V
OUT
, I
MA
=1mA-70mA 8.55 9.45 V(note 2)
OUT
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 70 μV
Temperature coefficient of V
VO/T I
OUT
=5mA -0.75 mV/C
OUT
Ripple Rejection RR 12V≤VIN≤24V,f=120Hz,TJ=25°C 38 44 dB
Dropout Voltage VD TJ=25°C 1.7 V
For UTC78L10 (V
=16V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 9.6 10.0 10.4 V
T
J
Output Voltage V
Load Regulation ∆V
Line regulation ∆V
Quiescent Current IQ VIN=17V,I
Quiescent Current Change IQ
12.5V≤VIN≤25V,I
OUT
12.5V≤VIN≤V
T
=25°C, I
J
OUT
TJ=25°C, I
12.5V≤V
OUT
14V≤VIN≤25V,TJ=25°C 100 170 mV
12.5V≤V
OUT
OUT
≤25V,TJ=25°C 100 200 mV
IN
=0mA,TJ=25°C 2.0 6.0 mA
OUT
≤25V 1.5 mA
IN
=1mA-40mA 9.5 10.5 V
OUT
, I
MA
=1mA-70mA 9.5 10.5 V(note 2)
OUT
=1mA-100mA 20 90 mV
=1mA-40mA 11 40 mV
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 74 μV
Temperature coefficient of V
VO/T I
OUT
=5mA -0.8 mV/C
OUT
Ripple Rejection RR 15V≤VIN≤25V,f=120Hz,TJ=25°C 38 43 dB
Dropout Voltage VD TJ=25°C 1.7 V
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78LXX LINEAR INTEGRATED CIRCUIT
X
X
X
ELECTRICAL CHARACTERISTICS (Cont.)
For UTC78L12 (V
=19V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 11.52 12.0 12.48 V
T
J
Output Voltage V
Load Regulation V
Line regulation V
Quiescent Current IQ VIN=19V,I
Quiescent Current Change IQ
14.5V≤VIN≤27V,I
OUT
14.5V≤VIN≤V
T
=25°C, I
J
OUT
TJ=25°C, I
14.5V≤V
OUT
16V≤VIN≤27V,TJ=25°C 20 250 mV
16V≤V
OUT
OUT
≤27V,TJ=25°C 25 300 mV
IN
=0mA,TJ=25°C 2.0 6.0 mA
OUT
≤27V 1.5 mA
IN
=1mA-40mA 11.40 12.60 V
OUT
, I
MA
=1mA-70mA 11.40 12.60 V(note 2)
OUT
=1mA-100mA 22 100 mV
=1mA-40mA 13 50 mV
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 80 μV
Temperature coefficient of V
VO/T I
OUT
=5mA -1.0 mV/C
OUT
Ripple Rejection RR 15V≤VIN≤25V,f=120Hz,TJ=25°C 37 65 dB
Dropout Voltage VD TJ=25°C 1.7 V
For UTC78L15 (V
=23V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 14.40 15.0 15.60 V
T
J
Output Voltage V
Load Regulation V
Line Regulation V
Quiescent Current IQ VIN=23V,I
Quiescent Current Change IQ
17.5V≤VIN≤30V,I
OUT
17.5V≤VIN≤V
=25°C, I
T
J
OUT
TJ=25°C, I
17.5V≤V
OUT
20V≤VIN≤30V,TJ=25°C 15 75 mV
20V≤V
OUT
OUT
≤30V,TJ=25°C 25 150 mV
IN
=0mA,TJ=25°C 2.2 6.5 mA
OUT
≤30V 1.5 mA
IN
=1mA-40mA 14.25 15.75 V
OUT
, I
MA
=1mA-70mA 14.25 15.75 V(note 2)
OUT
=1mA-100mA 25 150 mV
=1mA-40mA 15 75 mV
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 90 μV
Temperature Coefficient of V
VO/T I
OUT
=5mA -1.3 mV/C
OUT
Ripple Rejection RR 18.5V≤VIN≤28.5V,f=120Hz, TJ=25°C 34 63 dB
Dropout Voltage VD TJ=25°C 1.7 V
For UTC78L18 (V
=27V, I
IN
=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
=25°C 17.64 18.0 18.36 V
T
J
Output Voltage V
Load Regulation V
Line Regulation V
Quiescent Current IQ VIN=27V,I
Quiescent Current Change IQ
21V≤VIN≤33V,I
OUT
21V≤VIN≤V
T
=25°C, I
J
OUT
TJ=25°C, I
21V≤V
OUT
22V≤VIN≤33V,TJ=25°C 135 250 mV
21V≤V
OUT
OUT
≤33V,TJ=25°C 145 300 mV
IN
OUT
≤33V 1.5 mA
IN
=1mA-40mA 17.46 18.54 V
OUT
,I
MA
=1mA-70mA 17.46 18.54 V(note 2)
OUT
=1mA-100mA 27 180 mV
=1mA-40mA 19 90 mV
=0mA,TJ=25°C 2.0 6.0 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 150 μV
Temperature Coefficient of V
VO/T I
OUT
=5mA -1.8 mV/C
OUT
Ripple Rejection RR 23V≤VIN≤33V,f=120Hz,TJ=25°C 34 48 dB
Dropout Voltage VD TJ=25°C 1.7 V
Note 1. The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of
the package and copper pattern of PCB.
2. Power dissipation<0.5W
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78LXX LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
UTVIN
3
UTC78LXX
1
Vo
0.33
C1
μF
2
0.1
C0
μF
Notes: 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.
TEST CIRCUIT
INPUT
3
T13
Z2
T12
R19
R18
R11
T14
R12
R10
R8
OUTPUT
1
R13 R17 R9
T10
R14
R15
Z1
T8 T9
T11
T4
T5
T6
R5
T15
R4
R6
R16
R1 R2
T1 T2
C1
T7
T3
R3
R7
GND
2
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78LXX LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Ambient temperature vs. Power
700
dissipation
TO-92
600
(mW)
D
500
400
SOT-89
300
Power Dissiaption, P
SOP-8
25 50 75 100
Ambient Temperature, T
UTC78L12 Output Voltage vs.
Ambient temperature
12.1
(V)
OUT
12.0
(°C)
A
UTC78L05 Output Voltage
vs.Ambient temperature
5.2
(V)
OUT
5.1
5.0
Output Volatge, V
4.9
4.8
-50 0 50 100
Ambient Temperature, TA(°C)
Output Characteristics
25
IP=0mA
TJ=25°C
20
(V)
OUT
15
11.9
Output Volatge, V
11.8
11.7
-50 0 50 100
Ambient Temperature, TA(°C)
UTC78L05 Dropout Characteristics
TJ=25°C
5
(V)
OUT
O
I
=0mA
UT
U
O
I
=40mA
T
=100mA
UT
O
I
4.5
Output Volatge, V
4.1
6.0 6.5 7.0
UTC78L12
UTC78L05
Output Volatge, V
10
5
0
010203040
Input Voltage, VIN(V)
Short Circuit output current
500
TJ=25°C
400
300
200
Short circuit Current(mA)
100
010203040
Input Voltage, VIN(V)
input-outputVoltage difference(V)
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78LXX LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
UTC78L12 Quiescent Current vs.
Output Current
TJ=25°C
2.7
2.6
(mA)
Q
2.5
2.4
2.3
2.2
UTC78L12
2.1
2.0
Quiescent Current, I
1.9
020 8040 60 100
Output Current, I
OUT
(mA)
Peak Output Current
vs. Dropout Voltage Difference
400
300
UTC78L05 Quiescent Current vs.
Input Voltage
I
=0mA
OUT
TJ=25°C
4
(mA)
Q
3
2
1
Quiescent Current, I
0
0 10203040
Input Voltage, V
Dropout Voltage
2.5
2.0
1.5
IN
I
OUT
I
(V)
=70mA
OUT
=40mA
I
=1.0mA
200
1.0
OUT
(TJ=0°C)
100
Peak Output Current (mA)
010203040
Input-output voltage difference(V)
(TJ=25°C)
(TJ=150°C)
0.5
Input Output Differentional (V)
DROPOUT CONDITIONS
=2% of VOUT
ΔV
OUT
02550 100
75 125
Junction Temperature, T
(°C)
J
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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