UNISONIC TECHNOLOGIES CO., LTD
LM78XX LINEAR INTEGRATED CIRCUIT
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Copyright © 2005 Unisonic Technologies Co., Ltd QW-R101-006,J
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC LM78XX family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 1 A.
FEATURES
* 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 *Pb-free plating product number: LM78XXL
ORDERING INFORMATION
Order Number Pin Assignment
Normal Lead Free Plating 1 2 3 Package Packing
LM78xx-TA3-D-T LM78xxL-TA3-D-T I G O TO-220 Tube
LM78xx-TF3-D-T LM78xxL-TF3-D-T I G O
TO-220F Tube
Note: O: Output G: GND I: Input
MARKING INFORMATION
PACKAGE VOLTAGE CODE VOLTAGE CODE MARKING
TO-220
TO-220F
33:3.3V
47:4.7V
05:5.0V
06:6.0V
07:7.0V
08:8.0V
09:9.0V
10:10V
12:12V
15:15V
18:18V
24:24V
LM78XX LINEAR INTEGRATED CIRCUIT
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TEST CIRCUIT
3
1
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
LM78XX LINEAR INTEGRATED CIRCUIT
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ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
PARAMETER SYMBOL RATING UNIT
VOUT=3.3~18V 35 V
Input voltage VOUT=24V VIN 40 V
Output Current IOUT 1 A
Power Dissipation PD Internally Limited W
Operating Junction Temperature TOPR -20 ~ +150 °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.
THERMAL DATA
PARAMETER SYMBOL RATING UNIT
θJA 65 °C/W
Thermal Resistance
θJC 5 °C/W
ELECTRICAL CHARACTERISTICS
(IOUT=0.5A, TJ= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified)(Note 1)
For UTC LM7833 (VIN=5.8V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 3.168 3.30 3.432 V
Output Voltage V
OUT VIN =5.8V ~ 18.3V,
IOUT=5mA - 1.0A, PD15W≦ 3.135 3.465 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 33 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 17 mV
VIN =5.8V ~ 18.3V, TJ =25°C 33 mV Line regulation
ΔVOUT VIN =5.8V ~ 18.3V, TJ =25°C, IOUT=1.0A 33 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =5.8V ~ 18.3V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 55 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -0.4 mV/°C
Ripple Rejection RR VI N=6.3V–16.3V, f=120Hz, TJ =25°C 57 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN=35V, TJ =25°C 250 mA
For UTC LM7847 (VIN =9.7V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 4.512 4.70 4.888 V
Output Voltage VOUT VIN =7.2V ~ 19.7V,
IOUT=5mA - 1.0A, PD15W≦ 4.465 4.935 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 47 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 24 mV
VIN =7.2V ~ 19.7V, TJ =25°C 47 mV Line regulation
ΔVOUT VIN =7.2V ~ 19.7V, TJ =25°C, IOUT=1.0A 47 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =7.2V ~ 19.7V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 40 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -0.6 mV/°C
Ripple Rejection RR VIN =7.7V -17.7V, f=120Hz, TJ =25°C 62 80 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
LM78XX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7805 (VIN =10V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 4.80 5.0 5.20 V
Output Voltage VOUT VIN =7.5V ~ 20V,
IOUT=5mA - 1.0A,PD15W≦ 4.75 5.25 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 50 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 25 mV
VIN =7V ~ 25V, TJ =25°C 50 mV
Line regulation ΔVOUT VIN =7.5V ~ 20V, TJ =25°C, IOUT=1.0A 50 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A ≦ 8.0 mA
VIN =7.5V ~ 20V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 40 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -0.6 mV/°C
Ripple Rejection RR VIN =8V - 18V,f=120Hz, TJ =25°C 62 80 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
For UTC LM7806 (VIN =11V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 5.76 6.0 6.24 V
Output Voltage VOUT VIN =8.5V ~ 21V,
IOUT=5mA - 1.0A, PD15W≦ 5.70 6.30 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 60 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 30 mV
VIN =8V ~ 25V, TJ =25°C 60 mV
Line regulation ΔVOUT VIN =8.5V ~ 21V, TJ =25°C,IOUT=1.0A 60 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =8.5V ~ 21V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 45 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -0.7 mV/°C
Ripple Rejection RR VIN =9V - 19V,f=120Hz, TJ =25°C 59 75 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
LM78XX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7807 (VIN =13V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 6.72 7.0 7.28 V
Output Voltage VOUT VIN =9.5V ~ 22V,
IOUT=5mA - 1.0A, PD15W≦ 6.65 7.35 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 70 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 35 mV
VIN =9V ~ 25V, TJ =25°C 70 mV
Line regulation ΔVOUT VIN =9.5V ~ 22V, TJ =25°C,IOUT=1.0A 70 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =9.5V ~ 22V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 50 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -0.8 mV/°C
Ripple Rejection RR VIN =10V - 20V,f=120Hz, TJ =25°C 59 75 dB
Peak Output Current IPEAK T
J =25°C 1.7 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
For UTC LM7808 (VIN =14V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 7.68 8.0 8.32 V
Output Voltage VOUT VIN =10.5V ~ 23V,
IOUT=5mA - 1.0A, PD15W≦ 7.60 8.40 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 80 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 40 mV
VIN =10.5V ~ 25V, TJ =25°C 80 mV
Line regulation ΔVOUT VIN =10.5V ~ 23V, TJ =25°C,IOUT=1.0A 80 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =10.5V ~ 23V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 58 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -0.9 mV/°C
Ripple Rejection RR VIN =11.5V ~ 21.5V,
f=120Hz, TJ =25°C 56 72 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
LM78XX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7809 (VIN =15V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 8.64 9.0 9.36 V
Output Voltage VOUT VIN =11.5V ~ 24V,
IOUT=5mA - 1.0A,PD15W≦ 8.55 9.45 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 90 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 45 mV
VIN =11.5V ~ 25 V, TJ =25°C 90 mV
Line regulation ΔVOUT VIN =11.5V ~ 24V, TJ =25°C, IOUT=1.0A 90 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =11.5V ~ 24V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA – 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 58 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -1.1 mV/°C
Ripple Rejection RR VIN =12.5V ~ 22.5V,f=120Hz, TJ =25°C 56 72 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
For UTC LM7810 (VIN =16V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 9.60 10.0 10.40 V
Output Voltage VOUT VIN =12.5V ~ 25V,
IOUT=5mA - 1.0A,PD15W≦ 9.50 10.50 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 100 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 50 mV
VIN =13V ~ 25V, TJ =25°C 100 mV
Line regulation ΔVOUT VIN =13V ~ 25V, TJ =25°C,IOUT=1.0A 100 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =12.6V ~ 25V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 58 μV
Temperature coefficient of Vo ΔVo/ΔT IOUT=5mA -1.1 mV/°C
Ripple Rejection RR VIN =13V - 23V,f=120Hz, TJ =25°C 56 72 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
LM78XX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7812 (VIN =19V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 11.52 12.0 12.48 V
Output Voltage VOUT VIN =14.5V ~ 27V,
IOUT=5mA - 1.0A,PD15W≦ 11.40 12.60 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 120 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 60 mV
VIN =14.5V ~ 30V, TJ =25°C 120 mV
Line regulation ΔVOUT VIN =14.6V ~ 27V, TJ =25°C, IOUT=1.0A 120 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =14.5V ~ 30V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 75 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -1.5 mV/°C
Ripple Rejection RR VIN =15V - 25V,f=120Hz, TJ =25°C 55 72 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
For UTC LM7815 (VIN =23V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 14.40 15.0 15.60 V
Output Voltage VOUT VIN =17.5V ~ 30V,
IOUT=5mA - 1.0A,PD15W≦ 14.25 15.75 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 150 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 75 mV
VIN =18.5V ~ 30V, TJ =25°C 150 mV
Line regulation ΔVOUT VIN =17.7V ~ 30V, TJ =25°C, IOUT =1.0A 150 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =17.5V ~ 30V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 90 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -1.8 mV/°C
Ripple Rejection RR VIN =18.5V ~ 28.5V,f=120Hz, TJ =25°C 54 70 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
LM78XX LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7818 (VIN =27V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 17.28 18.0 18.72 V
Output Voltage VOUT VIN =21V ~ 33V,
IOUT=5mA - 1.0A, PD15W≦ 17.10 18.90 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 180 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 90 mV
VIN =21V ~ 33V,Tj=25°C 180 mV
Line regulation ΔVOUT VIN =21V ~ 33V,
TJ =25°C, IOUT =1.0A
180 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =21.5V ~ 33V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 110 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -2.2 mV/°C
Ripple Rejection RR VIN =22V - 32V,f=120Hz, TJ =25°C 53 69 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
For UTC LM7824 (VIN =33V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5mA - 1.0A 23.04 24.0 24.96 V
Output Voltage VOUT VIN =27V ~ 38V,
IOUT=5mA - 1.0A, ,PD15W≦ 22.80 25.20 V
Dropout Voltage VD T
J =25°C 2.0 V
TJ =25°C,IOUT=5mA - 1.0A 240 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=0.25A - 0.75A 120 mV
VIN =27V ~ 38V, TJ =25°C 240 mV
Line regulation ΔVOUT VIN =27V ~ 38V, TJ =25°C,IOUT=1.0A 240 mV
Quiescent Current IQ T
J =25°C, IOUT 1.0A≦ 8.0 mA
VIN =28V ~ 38V 1.0 mA
Quiescent Current Change ΔIQ IOUT=5mA - 1.0A 0.5 mA
Output Noise Voltage eN 10Hz f 100kHz≦≦ 170 μV
Temperature Coefficient of Vo ΔVo/ΔT IOUT=5mA -2.8 mV/°C
Ripple Rejection RR VIN =28V - 38V,f=120Hz, TJ =25°C 50 66 dB
Peak Output Current IPEAK T
J =25°C 1.8 A
Short-Circuit Current ISC V
IN =35V, TJ =25°C 250 mA
Note 1: 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 above represents pulse test conditions with junction
temperatures specified at the initiation of test.
Note 2: Power dissipation<0.5W
LM78XX LINEAR INTEGRATED CIRCUIT
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APPLICATION CIRCUIT
UTC LM78XX 3
2
1
C0
0.1 μF
C1
0.33 μF
Vi Vo
Note 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.
LM78XX LINEAR INTEGRATED CIRCUIT
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TYPICAL CHARACTERISTICS
Fig.1 Ambient temperature vs. Power
dissipation
Fig.2 Output Voltage vs. Ambient
temperature
-50 -25 0 75
8
12
14
16
Ambient Temperature, Ta (℃)
Power Dissiaption, PD(mW)
Ambient Temperature, Ta (℃)
-50 0 50 100
Output Volatge (V)
4.8
4.9
5.0
5.1
5.2
θHS=0℃/W
4
25 50
0
105 125 150
θJC=5℃/W
θJA=65℃/W
TJ(max)=150℃
No Heatsink
θHS=5℃/W
θHS=15℃/W
Fig.3 Dropout Voltage
02550 100
1.0
1.5
2.0
2.5
Junction Temperature, TJ(℃)
0.5
DROPOUT CONDITIONS
VOUT=2% of VOUT
75 125
IOUT=1.0mA
IOUT=40mA
IOUT=70mA
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.
