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MC78LXXA/LM78LXXA
3-terminal 0.1A positive voltage regulator
Features
· Maximum Output Current of 100mA · Output Voltage of 5V, 6V, 8V, 9V,10V, 12V, 15V, 18V and 24V · Thermal Overload Protection · Short Circuit Current Limiting · Output Voltage Offered in ± 5% Tolerance
Description
The MC78LXXA/LM78LXXA series of fixed voltage monolithic integrated circuit voltage regulators are suitable for application that required supply current up to 100mA.
TO-92
1
1: Output 2: GND 3: Input
8-SOP
1
1: Output 2: GND 3: GND 4: NC 5: NC 6: GND 7: GND 8: Input
Internal Block Diagram
V InpuIt 3
I
THERMAL SHUTDOWN CIRCUIT
REFERENCE VOLTAGE
+ -
SHORT CIRCUIT PROTECTION
RSC
GND 2
V0 Output 1
Rev. 5.0
©2000 Fairchild Semiconductor International
MC78LXXA/LM78LXXA
Absolute Maximum Ratings
Parameter Input Voltage (for VO = 5V, 8V) (for VO = 12V to 18V) (for VO = 24V Operating Junction Temperature Range Storage Temperature Range Symbol VI Value 30 35 40 0 ~ +150 -65 ~ +150 Unit V V V °C °C
TJ TSTG
Electrical Characteristics(MC78L05A/LM78L05A)
(VI = 10V, IO = 40mA, 0 °C TJ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Symbol VO VO VO TJ = 25 °C TJ = 25 °C TJ = 25 °C 7V VI 20V Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Temperature Coefficient of VO Ripple Rejection Dropout Voltage with line with load VO IQ IQ IQ VN VO/T RR VD 7V VI VMAX (Note 2) TJ = 25 °C 8V VI 20V 1mA IO 40 mA TA = 25 °C, 10Hz f 100KHz IO = 5mA f = 120Hz, 8V VI 18V, TJ = 25 °C TJ = 25 °C 7V VI 20V 8V VI 20V 1mA IO 100mA 1mA IO 40mA 1mA IO 40mA 1mA IO 70mA Conditions Min. 4.8 4.75 41 Typ. 5.0 8 6 11 5.0 2.0 40 -0.65 80 1.7 Max. 5.2 150 100 60 30 5.25 5.25 5.5 1.5 0.1 Unit V mV mV mV mV V V mA mA mA µV mV/ °C dB V
Load Regulation
Notes: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation 0.75W.
2
MC78LXXA/LM78LXXA
Electrical Characteristics(MC78L08A)
(VI = 14V, IO = 40mA, 0 °C TJ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Symbol VO VO TJ = 25 °C TJ = 25 °C TJ = 25 °C 10.5V VI 23V 11V VI 23V 1mA IO 100mA 1mA IO 40mA 10.5V VI 23V 1mA IO 40mA Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Temperature Coefficient of VO Ripple Rejection Dropout Voltage with line with load VO IQ IQ IQ VN VO/T RR VD 10.5V VI VMAX (Note 2) TJ = 25 °C 11V VI 23V 1mA IO 40mA TA = 25 °C, 10Hz f 100KHz IO = 5mA f = 120Hz, 11V VI 21V, TJ = 25 °C TJ = 25 °C 1mA IO 70mA Conditions Min. 7.7 7.6 7.6 39 Typ. 8.0 10 8 15 8.0 2.0 60 -0.8 70 1.7 Max. 8.3 175 125 80 40 8.4 8.4 5.5 1.5 0.1 Unit V mV mV mV mV V V mA mA mA µV mV/ °C dB V
Load Regulation
VO
Notes: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation 0.75W.
3
MC78LXXA/LM78LXXA
Electrical Characteristics(MC78L12A/LM78L12A)
(VI = 19V, IO = 40mA, 0 °C TJ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Symbol VO VO VO TJ = 25 °C TJ = 25 °C TJ = 25 °C 14.5V VI 27V 16V VI 27V 1mA IO 100mA 1mA IO 40mA 14.5V VI 27V 1mA IO 40mA Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Temperature Coefficient of VO Ripple Rejection Dropout Voltage with line with load VO IQ IQ IQ VN VO/T RR VD 14.5V VI VMAX (Note 2) TJ = 25 °C 16V VI 27V 1mA IO 40mA TA = 25 °C, 10Hz f 100KHz
IO = 5mA
Conditions
Min. 11.5 11.4 11.4 37 -
Typ. 12 20 15 20 10 2.1 80 -1.0 65 1.7
Max. 12.5 250 200 100 50 12.6 12.6 6.0 1.5 0.1 -
Unit V mV mV mV mV V V mA mA mA µV mV/ °C dB V
Load Regulation
1mA IO 70mA
f = 120Hz, 15V VI 25V, TJ = 25 °C TJ = 25 °C
Notes: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation 0.75W.
4
MC78LXXA/LM78LXXA
Electrical Characteristics(MC78L15A)
(VI = 23V, IO = 40mA, 0 °C TJ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Symbol VO VO VO TJ = 25 °C TJ = 25 °C TJ = 25 °C 17.5V VI 30V Output Voltage Quiescent Current Quiescent Current Change with line with load VO IQ IQ IQ VN RR VD 17.5V VI VMAX (Note 2) TJ = 25 °C 20V VI 30V 1mA IO 40mA TA = 25 °C, 10Hz f 100KHz IO = 5mA f = 120Hz, 18.5V VI 28.5V, TJ = 25 °C TJ = 25 °C 17.5V VI 30V 20V VI 30V 1mA IO 100mA 1mA IO 40mA 1mA IO 40mA 1mA IO 70mA Conditions Min. 14.4 14.25 14.25 34 Typ. Max. 15 25 20 25 12 2.1 90 -1.3 60 1.7 15.6 300 250 150 75 15.75 15.75 6.0 1.5 0.1 Unit V mV mV mV mV V V mA mA mA µV mV/ °C dB V
Load Regulation
Output Noise Voltage Ripple Rejection Dropout Voltage
Temperature Coefficient of VO VO/T
Notes: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation 0.75W.
5
MC78LXXA/LM78LXXA
Electrical Characteristics(MC78L18A)
(VI = 27V, IO = 40mA, 0 °C TJ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Symbol VO VO VO TJ = 25 °C TJ = 25 °C TJ = 25 °C 21V VI 33V Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Temperature Coefficient of VO Ripple Rejection Dropout Voltage with line with load VO IQ IQ IQ VN VO/T RR VD 21V VI VMAX (Note 2) TJ = 25 °C 21V VI 33V 1mA IO 40mA TA = 25 °C, 10Hz f 100KHz IO = 5mA f = 120Hz, 23V VI 33V, TJ = 25 °C TJ = 25 °C 21V VI 33V 22V VI 33V 1mA IO100mA 1mA IO 40mA 1mA IO 40mA 1mA IO 70mA Conditions Min. 17.3 17.1 17.1 34 Typ. 18 145 135 30 15 2.2 150 -1.8 48 1.7 Max. 18.7 300 250 170 85 18.9 18.9 6.0 1.5 0.1 Unit V mV mV mV mV V V mA mA mA µV mV/ °C dB V
Load Regulation
Notes: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation 0.75W.
6
MC78LXXA/LM78LXXA
Electrical Characteristics(MC78L24A)
(VI = 33V, IO = 40mA, 0 °C TJ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Symbol VO VO VO TJ = 25 °C TJ = 25 °C TJ = 25 °C 27V VI 38V Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Temperature Coefficient of VO Ripple Rejection Dropout Voltage with line with load VO IQ IQ IQ VN VO/T RR VD 27V VI VMAX (Note 2) TJ = 25 °C 28V VI 38V 1mA IO 40mA TA = 25 °C, 10Hz f 100KHz IO = 5mA f = 120Hz, 28V VI 38V, TJ = 25 °C TJ = 25 °C 27V VI 38V 28V VI 38V 1mA IO 100mA 1mA IO 40mA 1mA IO 40mA 1mA IO 70mA Conditions Min. 23 22.8 22.8 34 Typ. 24 160 150 40 20 2.2 200 -2.0 45 1.7 Max. 25 300 250 200 100 25.2 25.2 6.0 1.5 0.1 Unit V mV mV mV mV V V mA mA mA µV mV/ °C dB V
Load Regulation
Notes: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation 0.75W.
7
MC78LXXA/LM78LXXA
Typical Application
3(8) INPUT C1 0.33 µF NOTE 2
MC78LXXA/LM78LXXA
KA78LXXA NOTE 1 2(2,3,6,7)
1(1)
OUTPUT 0. 1 µF NOTE 2
'( )' : 8SOP Type
Notes: 1. To specify an output voltage, substitute voltage value for "XX".
2. Bypass Capacitors are recommend for optimum stability and transient response and should be located as close as possible to the regulator
8
MC78LXXA/LM78LXXA
Mechanical Dimensions
Package
TO-92
4.58 0.15
+0.25
0.46
14.47 ±0.40
±0.10
4.58 ±0.20
1.27TYP [1.27 ±0.20] 3.60
±0.20
1.27TYP [1.27 ±0.20]
0.38 0.05
+0.10
3.86MAX
1.02 ±0.10
0.38 0.05
+0.10
(R2.29)
9
(0.25)
MC78LXXA/LM78LXXA
Mechanical Dimensions(Continued)
Package
8-SOP
MIN 1.55 ±0.20 0.061 ±0.008 0.1~0.25 0.004~0.001
#1
#8 4.92 ±0.20 0.194 ±0.008 5.13 MAX 0.202
( #4 #5 6.00 ±0.30 0.236 ±0.012
+0.10 0.15 -0.05 +0.004 0.006 -0.002
0.56 ) 0.022 1.80 MAX 0.071 MAX0.10 MAX0.004 3.95 ±0.20 0.156 ±0.008 5.72 0.225 0.50 ±0.20 0.020 ±0.008
0~
8°
1.27 0.050
0.41 ±0.10 0.016 ±0.004
10
MC78LXXA/LM78LXXA
Ordering Information
Product Number LM78L05ACZ LM78L12ACZ Package TO-92 Operating Temperature 0 ~ + 125 °C
Product Number MC78L05ACP MC78L08ACP MC78L12ACP MC78L15ACP MC78L18ACP MC78L24ACP MC78L05ACD
Package
Operating Temperature
TO-92 0 ~ + 125 °C
8 SOP
11
MC78LXXA/LM78LXXA
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR INTERNATIONAL. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.
www.fairchildsemi.com 7/12/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.