UNISONIC TECHNOLOGIES CO., LTD
78LXX LINEAR INTEGRATED CIRCUIT
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Copyright © 2013 Unisonic Technologies Co., Ltd QW-R101-001,O
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 Package Pin Assignment Packing
Lead Free Halogen Free 1 2 3 4 5 6 7 8
78LXXL-AB3-R 78LXXG-AB3-R
SOT-89 O G I - - - - - Tape Reel
78LXXL-AF5-R 78LXXG-AF5-R
SOT-25 G I O N N Tape Reel
78LXXL-S08-R 78LXXG-S08-R SOP-8
O G G N N G G I Tape Reel
78LXXL-S08-T 78LXXG-S08-T SOP-8
O G G N N G G I Tube
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-T92-R 78LXXG-T92-R TO-92
O G I - - - - - Tape Reel
Note: 1. XX: Output Voltage, refer to Marking Information.
2. O: Output G: GND I: Input N: No Connection
78LXX LINEAR INTEGRATED CIRCUIT
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MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
SOP-8
05:5.0V
06:6.0V
08:8.0V
09:9.0V
10:10V
12:12V
15:15V
18:18V
UTC
78LXX
Date Code
Voltage Code
L: Lead Free
G: Halogen Free
Lot Code
SOT-89
SOT-25
TO-92
78LXX LINEAR INTEGRATED CIRCUIT
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ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VOUT=5~9V VIN 30 V
VOUT=10~18V 35
Output Current IOUT 100 mA
Power Dissipation
SOP-8
PD
300 mW
SOT-25 240 mW
TO-92 625 mW
SOT-89 350 mW
Junction Temperature TJ +150 °C
Operating Temperature TOPR -40~+85 °C
Storage Temperature TSTG -55~+150 °C
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
For UTC78L05 (VIN=10V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 4.80 5.0 5.20 V
7V≤VIN≤20V,IOUT=1mA-40mA 4.75 5.25 V
7V≤VIN≤VMA
X
,IOUT=1mA-70mA 4.75 5.25 V (note 2)
Load Regulation ΔVOUT TJ=25°C,IOUT=1mA-100mA 15 60 mV
TJ=25°C,IOUT=1mA-40mA 8 30 mV
Line regulation ΔVOUT 7V≤VIN≤20V,TJ=25°C 8 150 mV
8V≤VIN≤20V,TJ=25°C 6 100 mV
Quiescent Current IQ V
IN=10V,IOUT=0mA,TJ=25°C 2.0 5.5 mA
Quiescent Current Change ΔIQ 8V≤VIN≤20V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 40 μV
Temperature coefficient of VOUT ΔVO/ΔT I
OUT=5mA -0.65 mV/°C
Ripple Rejection RR 8V≤VIN≤20V,f=120Hz,TJ=25°C 41 80 dB
Dropout Voltage VD T
J=25°C 1.7 V
For UTC78L06 (VIN=12V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 5.76 6.0 6.24 V
8.5V≤VIN≤20V,IOUT=1mA-40mA 5.70 6.30 V
8.5V≤VIN≤VMA
X
, IOUT=1mA-70mA 5.70 6.30 V(note 2)
Load Regulation ΔVOUT TJ=25°C,IOUT=1mA-100mA 16 80 mV
TJ=25°C,IOUT=1mA-40mA 9 40 mV
Line regulation ΔVOUT 8.5V≤VIN≤20V,TJ=25°C 64 175 mV
9V≤VIN≤20V,TJ=25°C 54 125 mV
Quiescent Current IQ V
IN=12V,IOUT=0mA,TJ=25°C 3.9 6.0 mA
Quiescent Current Change ΔIQ 9V≤VIN≤20V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 49 μV
Temperature coefficient of VOUT ΔVO/ΔT I
OUT=5mA -0.75 mV/°C
Ripple Rejection RR 10V≤VIN≤20V,f=120Hz, TJ=25°C 40 46 dB
Dropout Voltage VD T
J=25°C 1.7 V
78LXX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS (Cont.)
For UTC78L08 (VIN=14V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 7.68 8.0 8.32 V
10.5V≤VIN≤23V,IOUT=1mA-40mA 7.60 8.40 V
10.5V≤VIN≤VMA
X
, IOUT=1mA-70mA 7.60 8.40 V(note 2)
Load Regulation ΔVOUT TJ=25°C,IOUT=1mA-100mA 18 80 mV
TJ=25°C,IOUT=1mA-40mA 10 40 mV
Line regulation ΔVOUT 10.5V≤VIN≤23V,TJ=25°C 10 175 mV
11V≤VIN≤23V,TJ=25°C 8 125 mV
Quiescent Current IQ V
IN=14V,IOUT=0mA,TJ=25°C 2.0 5.5 mA
Quiescent Current Change ΔIQ 11V≤VIN≤23V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 49 μV
Temperature coefficient of Vo ΔVO/ΔT I
OUT=5mA
-0.75 mV/°C
Ripple Rejection RR 11V≤VIN≤23V,f=120Hz,TJ=25°C 39 70 dB
Dropout Voltage VD T
J=25°C 1.7 V
For UTC78L09 (VIN=15V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 8.64 9.0 9.36 V
11.5V≤VIN≤24V,IOUT=1mA-40mA 8.55 9.45 V
11.5V≤VIN≤VMA
X
, IOUT=1mA-70mA 8.55 9.45 V(note 2)
Load Regulation ΔVOUT TJ=25°C,IOUT=1mA-100mA 19 90 mV
TJ=25°C,IOUT=1mA-40mA 11 40 mV
Line regulation ΔVOUT 11.5V≤VIN≤24V,TJ=25°C 90 200 mV
13V≤VIN≤24V,TJ=25°C 100 150 mV
Quiescent Current IQ V
IN=15V,IOUT=0mA,TJ=25°C 2.0 6.0 mA
Quiescent Current Change ΔIQ 13V≤VIN≤24V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 70 μV
Temperature coefficient of VOUT ΔVO/ΔT I
OUT=5mA -0.75 mV/°C
Ripple Rejection RR 12V≤VIN≤24V,f=120Hz,TJ=25°C 38 44 dB
Dropout Voltage VD T
J=25°C 1.7 V
For UTC78L10 (VIN=16V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 9.6 10.0 10.4 V
12.5V≤VIN≤25V,IOUT=1mA-40mA 9.5 10.5 V
12.5V≤VIN≤VMA
X
, IOUT=1mA-70mA 9.5 10.5 V(note 2)
Load Regulation ΔVOUT TJ=25°C, IOUT=1mA-100mA 20 90 mV
TJ=25°C, IOUT=1mA-40mA 11 40 mV
Line regulation ΔVOUT 12.5V≤VIN≤25V,TJ=25°C 100 200 mV
14V≤VIN≤25V,TJ=25°C 100 170 mV
Quiescent Current IQ V
IN=17V,IOUT=0mA,TJ=25°C 2.0 6.0 mA
Quiescent Current Change ΔIQ 12.5V≤VIN≤25V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 74 μV
Temperature coefficient of VOUT ΔVO/ΔT I
OUT=5mA -0.8 mV/°C
Ripple Rejection RR 15V≤VIN≤25V,f=120Hz,TJ=25°C 38 43 dB
Dropout Voltage VD T
J=25°C 1.7 V
78LXX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS (Cont.)
For UTC78L12 (VIN=19V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 11.52 12.0 12.48 V
14.5V≤VIN≤27V,IOUT=1mA-40mA 11.40 12.60 V
14.5V≤VIN≤VMA
X
, IOUT=1mA-70mA 11.40 12.60 V(note 2)
Load Regulation ΔVOUT TJ=25°C, IOUT=1mA-100mA 22 100 mV
TJ=25°C, IOUT=1mA-40mA 13 50 mV
Line regulation ΔVOUT 14.5V≤VIN≤27V,TJ=25°C 25 300 mV
16V≤VIN≤27V,TJ=25°C 20 250 mV
Quiescent Current IQ V
IN=19V,IOUT=0mA,TJ=25°C 2.0 6.0 mA
Quiescent Current Change ΔIQ 16V≤VIN≤27V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 80 μV
Temperature coefficient of VOUT ΔVO/ΔT I
OUT=5mA -1.0 mV/°C
Ripple Rejection RR 15V≤VIN≤25V,f=120Hz,TJ=25°C 37 65 dB
Dropout Voltage VD T
J=25°C 1.7 V
For UTC78L15 (VIN=23V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 14.40 15.0 15.60 V
17.5V≤VIN≤30V,IOUT=1mA-40mA 14.25 15.75 V
17.5V≤VIN≤VMA
X
, IOUT=1mA-70mA 14.25 15.75 V(note 2)
Load Regulation ΔVOUT TJ=25°C, IOUT=1mA-100mA 25 150 mV
TJ=25°C, IOUT=1mA-40mA 15 75 mV
Line Regulation ΔVOUT 17.5V≤VIN≤30V,TJ=25°C 25 150 mV
20V≤VIN≤30V,TJ=25°C 15 75 mV
Quiescent Current IQ V
IN=23V,IOUT=0mA,TJ=25°C 2.2 6.5 mA
Quiescent Current Change ΔIQ 20V≤VIN≤30V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 90 μV
Temperature Coefficient of VOUT ΔVO/ΔT I
OUT=5mA -1.3 mV/°C
Ripple Rejection RR 18.5V≤VIN≤28.5V,f=120Hz, TJ=25°C 34 63 dB
Dropout Voltage VD T
J=25°C 1.7 V
For UTC78L18 (VIN=27V, IOUT=40mA, 0°C<TJ<150°C, C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT
TJ=25°C 17.64 18.0 18.36 V
21V≤VIN≤33V,IOUT=1mA-40mA 17.46 18.54 V
21V≤VIN≤VMA
X
,IOUT=1mA-70mA 17.46 18.54 V(note 2)
Load Regulation ΔVOUT TJ=25°C, IOUT=1mA-100mA 27 180 mV
TJ=25°C, IOUT=1mA-40mA 19 90 mV
Line Regulation ΔVOUT 21V≤VIN≤33V,TJ=25°C 145 300 mV
22V≤VIN≤33V,TJ=25°C 135 250 mV
Quiescent Current IQ V
IN=27V,IOUT=0mA,TJ=25°C 2.0 6.0 mA
Quiescent Current Change ΔIQ 21V≤VIN≤33V 1.5 mA
1mA≤VIN≤40mA 0.1 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 150 μV
Temperature Coefficient of VOUT ΔVO/ΔT I
OUT=5mA -1.8 mV/°C
Ripple Rejection RR 23V≤VIN≤33V,f=120Hz,TJ=25°C 34 48 dB
Dropout Voltage VD T
J=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
78LXX LINEAR INTEGRATED CIRCUIT
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APPLICATION CIRCUIT
UTC78LXX 1
2
3VoUTVIN
C1
0.33μF
C0
0.1μF
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
1
3
2
GND
OUTPUT
INPUT
R13 R17 R9 Z2 T12
T14
R19
R18
R12
R11 R10
R8
T8 T9
T13
T10
R14
T11 T5
T6
R5
T4
Z1
R15
T15
R16 R1 R2
R4
C1
R6
T7
T3
T1 T2
R3
R7
78LXX LINEAR INTEGRATED CIRCUIT
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TYPICAL CHARACTERISTICS
Ambient temperature vs. Power
dissipation
UTC78L05 Output Voltage
vs.Ambient temperature
25 50 75 100
400
500
600
700
Ambient Temperature, TA(°C)
Power Dissiaption, PD(mW)
-50 0 50 100
Output Volatge, VOUT(V)
4.8
4.9
5.0
5.1
5.2
TO-92
SOT-89
300 SOP-8
UTC78L12 Output Voltage vs.
Ambient temperature
-50 0 50 100
11.7
Output Characteristics
11.8
11.9
12.0
12.1
Input Voltage, VIN(V)
010203040
0
10
5
15
20
25
UTC78L12
UTC78L05
Short Circuit output current
UTC78L05 Dropout Characteristics
5
4.1
4.5
6.0 6.5 7.0
IOUT=0mA
IOUT=40mA
IOUT=100mA
input-outputVoltage difference(V)
010203040
Short circuit Current(mA)
100
200
300
400
500
Ambient Temperature, TA(°C)
Output Volatge, VOUT(V)
Ambient Temperature, TA(°C)
IP=0mA
TJ=25°C
Output Volatge, VOUT(V)
TJ=25°C
Output Volatge, VOUT(V)
Input Voltage, VIN(V)
TJ=25°C
78LXX LINEAR INTEGRATED CIRCUIT
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TYPICAL CHARACTERISTICS(Cont.)
UTC78L12 Quiescent Current vs.
Output Current
UTC78L05 Quiescent Current vs.
Input Voltage
Output Current, IOUT (mA)
020 8040 60 100
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Quiescent Current, IQ (mA)
UTC78L12
Input Voltage, VIN(V)
0 10203040
0
1
2
3
4
Peak Output Current
vs. Dropout Voltage Difference
Input-output voltage difference(V)
010203040
Peak Output Current (mA)
100
200
300
400
(TJ=0°C)
Dropout Voltage
02550 100
1.0
1.5
2.0
2.5
Junction Temperature, TJ (°C)
Input Output Differentional (V)
0.5
DROPOUT CONDITIONS
ΔVOUT=2% of VOUT
75 125
TJ=25°C
Quiescent Current, IQ (mA)
IOUT=0mA
TJ=25°C
(TJ=150°C)
(TJ=25°C)
IOUT=70mA
IOUT=40mA
IOUT=1.0mA
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.
