©2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.4
Features
• Maximum Output Current of 100mA
• Output Voltage of 5V, 8V, 12V, 15V, 18V and 24V
• Thermal Overload Protectio n
• Short Circuit Curr ent Limiting
• Output Voltag e Offered in ±5% Tolerance
Description
The MC78LXXA/LM78LXXA/MC78L05AA series of
fixed voltage monolithic integrated circuit voltage
regulators are suitable for application that required supply
current up to 100mA.
TO-92
1. Output 2. GND 3. Input
8-SOP
1. Out put 2. GND 3. GND 4. NC
5. NC 6. GND 7. GND 8. Input
1
1
SOT-89
1
GND
23
23
8
Internal Block Diagram
VI3
2GND V0
1
I
RSC
REFERENCE VOLTAGE
SHORT CIRCUIT
PROTECTION
THERMAL SHUTDOWN
CIRCUIT
+
-
Input
Output
MC78LXXA/LM78LXXA/MC78L05AA
3-Terminal 0.1A Positive Volta ge Regulator
MC78LXXA/LM78LXXA/MC78L05AA
2
Absolute Maximum Ratings
Electrical Characteristics(MC78L05A/LM78L05A)
(VI = 10V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The max imum st eady sta te usable output cu rrent and inpu t voltage are very depende nt on the heat si nking an d/or lead leng th
of the pa ckage. The data above represen t pulse test con ditions w ith junc tion tem perature as indic ated at the initia tion of te sts.
2. Pow er dis sipation P D ≤ 0.75W.
Parameter Symbol Value Unit
Input Voltage (for VO = 5V, 8V)
(for VO = 12V to 18V)
(for VO = 24V) VI30
35
40
V
V
V
Operating Junction Temperature Range TJ0 ~ +150 °C
Storage Temperature Range TSTG -65 ~ +150 °C
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C4.85.05.2V
Line Regulation (Note1) ∆VOTJ = 25°C7V ≤
≤≤
≤ VI ≤
≤≤
≤ 20V - 8 150 mV
8V ≤
≤≤
≤ VI ≤
≤≤
≤ 20V - 6 100 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO ≤ 100mA - 11 60 mV
1mA ≤ IO ≤ 40mA - 5.0 30 mV
Output Voltage VO7V ≤ VI ≤ 20V 1mA ≤ IO ≤ 40mA - - 5.25 V
7V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 4.75 - 5.25 V
Quiescent Current IQTJ = 25°C-2.05.5mA
Quiescent Current
Change With Line ∆IQ8V ≤VI ≤ 20V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40 mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤ 100kHz - 40 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -0.65 - mV/°C
Ripple Rejection RR f = 120Hz, 8V ≤ VI ≤ 18V, TJ = 25°C4180 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
3
Electrical Characteristics(MC78L08A) (Continued)
(VI = 14V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The ma ximum ste ady stat e usable output curre nt and input vo ltage ar e very d epende nt on th e heat s inking a nd/or lead le ngth
of the packa ge. The data ab ove represen t pulse test c onditions with junction tempera ture as ind icated at the initi ation of tests.
2. Pow er dis sipation P D ≤ 0.75W.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C 7.7 8.0 8.3 V
Line Regulation (Note1) ∆VOTJ = 25°C10.5V ≤ VI ≤ 23V - 10 175 mV
11V ≤ VI ≤ 23V - 8 125 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO ≤ 100mA - 15 80 mV
1mA ≤ IO ≤ 40mA - 8.0 40 mV
Output Voltage VO10.5V ≤ VI ≤ 23V 1mA ≤ IO ≤ 40mA 7.6 - 8.4 V
10.5V ≤ VI ≤
VMAX (Note 2) 1mA ≤ IO ≤ 70mA 7.6 - 8.4 V
Quiescent Current IQTJ = 25°C-2.05.5mA
Quiescent Current
Change With Line ∆IQ11V ≤ VI ≤ 23V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤100kHz - 60 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -0.8 - mV/ °C
Ripple Rejection RR f = 120Hz, 11V ≤ VI ≤ 21V, TJ = 25°C39 70 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
4
Electrical Characteristics(MC78L12A/LM78L12A) (Continued)
(VI = 19V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The ma ximum ste ady stat e usable output curre nt and input vo ltage ar e very d epende nt on th e heat s inking a nd/or lead le ngth
of the packa ge. The data ab ove represen t pulse test c onditions with junction tempera ture as ind icated at the initi ation of tests.
2. Pow er dis sipation P D ≤ 0.75W.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C 11.5 12 12.5 V
Line Regulation (Note1) ∆VOTJ = 25°C14.5V ≤ VI ≤ 27V - 20 250 mV
16V ≤ VI ≤ 27V - 15 200 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO ≤ 100mA - 20 100 mV
1mA ≤ IO ≤ 40mA - 10 50 mV
Output Voltage VO14.5V ≤ VI ≤ 27V 1mA ≤ IO ≤ 40mA 11.4 - 12.6 V
14.5V ≤ VI ≤
VMAX (Note 2) 1mA ≤ IO ≤ 70mA 11.4 - 12.6 V
Quiescent Current IQTJ = 25°C-2.16.0mA
Quiescent Current
Change With Line ∆IQ16V ≤ VI ≤ 27V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤ 100kHz - 80 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -1.0 - mV/°C
Ripple Rejection RR f = 120Hz, 15V ≤ VI ≤ 25V, TJ = 25°C37 65 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
5
Electrical Characteristics(MC78L15A) (Continued)
(VI = 23V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The m ax i mum s t ea dy state usa ble outp ut current a nd in put volta ge are v ery depend ent on the h ea t sinking and/o r le ad leng th
of the pa ckage. The data above represen t pulse test con ditions w ith junc tion tem perature as indic ated at the initia tion of te sts.
2. Po wer dissipat ion PD ≤ 0.75W.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C 14.4 15 15.6 V
Line Regulation (Note1) ∆VOTJ = 25°C17.5V ≤ VI ≤ 30V - 25 300 mV
20V ≤ VI ≤ 30V - 20 250 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO ≤ 100mA - 25 150 mV
1mA ≤ IO ≤ 40mA - 12 75 mV
Output Voltage VO17.5V ≤ VI ≤ 30V 1mA ≤ IO ≤ 40mA 14.25 - 15.75 V
17.5V ≤ VI ≤
VMAX (Note 2) 1mA ≤ IO ≤ 70mA 14.25 - 15.75 V
Quiescent Current IQTJ = 25°C-2.16.0mA
Quiescent Current
Change With Line ∆IQ20V ≤ VI ≤ 30V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤ 100kHz - 90 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -1.3 - mV/°C
Ripple Rejection RR f = 120Hz, 18.5V≤VI ≤28.5V, T J = 25 °C34 60 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
6
Electrical Characteristics(MC78L18A) (Continued)
(VI = 27V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The maxi mum st ead y state usable ou tp ut curre nt and inp ut volta ge ar e very de pende nt on the heat sinking and/ or lead le ngth
of the packa ge. The data ab ove repres ent pulse test c onditions with junction tempera ture as ind icated at the initi ation of test s.
2. Po wer dissipat ion PD ≤ 0.75W.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C 17.3 18 18.7 V
Line Regulation (Note1) ∆VOTJ = 25°C21V ≤ VI ≤ 33V - 145 300 mV
22V ≤ VI ≤ 33V - 135 250 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO≤100mA - 30 170 mV
1mA ≤ IO ≤ 40mA - 15 85 mV
Output Voltage VO21V ≤ VI ≤ 33V 1mA ≤ IO ≤ 40mA 17.1 - 18.9 V
21V ≤ VI ≤
VMAX (Note 2) 1mA ≤ IO ≤ 70mA 17.1 - 18.9 V
Quiescent Current IQTJ = 25°C-2.26.0mA
Quiescent Current
Change With Line ∆IQ21V ≤ VI ≤ 33V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤ 100kHz - 150 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -1.8 - mV/°C
Ripple Rejection RR f = 120Hz, 23V ≤ VI ≤ 33V, TJ = 25°C34 48 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
7
Electrical Characteristics(MC78L24A) (Continued)
(VI = 33V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The max imum st eady sta te usable output cu rrent and inpu t voltage are very depende nt on the heat si nking an d/or lead leng th
of the pa ckage. The data above represen t pulse test con ditions w ith junc tion tem perature as indic ated at the initia tion of te sts.
2. Pow er dis sipation P D ≤ 0.75W.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C232425V
Line Regulation (Note1) ∆VOTJ = 25°C27V ≤ VI ≤ 38V - 160 300 mV
28V ≤ VI ≤ 38V - 150 250 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO ≤ 100mA - 40 200 mV
1mA ≤ IO ≤ 40mA - 20 100 mV
Output Voltage VO27V ≤ VI ≤ 38V 1mA ≤ IO ≤ 40mA 22.8 - 25.2 V
27V ≤ VI ≤
VMAX (Note 2) 1mA ≤ IO ≤ 70mA 22.8 - 25.2 V
Quiescent Current IQTJ = 25°C-2.26.0mA
Quiescent Current
Change With Line ∆IQ28V ≤ VI ≤ 38V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤ 100kHz - 200 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -2.0 - mV/°C
Ripple Rejection RR f = 120Hz, 28V ≤ VI ≤ 38V, TJ = 25°C34 45 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
8
Absolute Maximum Ratings
Electrical Characteristics(MC78L05AA) (Continued)
(VI = 10V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Note:
1. The maxi mum st ead y state usable ou tp ut curre nt and inp ut volta ge ar e very de pende nt on the heat sinking and/ or lead le ngth
of the packa ge. The data ab ove repres ent pulse test c onditions with junction tempera ture as ind icated at the initi ation of test s.
2. Po wer dissipat ion PD ≤ 0.75W.
Parameter Symbol Value Unit
Input Voltage (for VO = 5V, 8V)
(for VO = 12V to 18V)
(for VO = 24V) VI30
35
40
V
V
V
Operating Junction Temperature Range TJ0 ~ +150 °C
Storage Temperature Range TSTG -65 ~ +150 °C
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage VOTJ = 25°C4.95.05.1V
Line Regulation (Note1) ∆VOTJ = 25°C7V ≤
≤≤
≤ VI ≤
≤≤
≤ 20V - 8 150 mV
8V ≤
≤≤
≤ VI ≤
≤≤
≤ 20V - 6 100 mV
Load Regulation (Note1) ∆VOTJ = 25°C1mA ≤ IO ≤ 100mA - 11 50 mV
1mA ≤ IO ≤ 40mA - 5.0 25 mV
Output Voltage VO7V ≤VI ≤20V 1mA ≤ IO ≤ 40mA - - 5.15 V
7V ≤VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 4.75 - 5.15 V
Quiescent Current IQTJ = 25°C-2.05.5mA
Quiescent Current
Change With Line ∆IQ8V ≤VI ≤ 20V - - 1.5 mA
With Load ∆IQ1mA ≤ IO ≤ 40 mA - - 0.1 mA
Output Noise Voltage VNTA = 25°C, 10Hz ≤ f ≤ 100kHz - 40 - µV/Vo
Temperature Coefficient of VO∆VO/∆TI
O = 5mA - -0.65 - mV/°C
Ripple Rejection RR f = 120Hz, 8V ≤ VI ≤ 18V, TJ = 25°C4180 - dB
Dropout Voltage VDTJ = 25°C-1.7-V
MC78LXXA/LM78LXXA/MC78L05AA
9
Typical Application
’( )’ : 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
KA78LXXA
NOTE 1
INPUT OUTPUT
1(1)
2(2,3,6,7)
3(8)
C1
0.33 µF
NOT E 2 0. 1
NOT E 2
µF
MC78LXXA/LM78LXXA
MC78LXXA/LM78LXXA/MC78L05AA
10
Mechanical Dimensions
Package Dimensions in millimeters
0.46
±0.10
1.27TYP
(R2.29)
3.86MAX
[1.27
±0.20
]1.27TYP
[1.27
±0.20
]
3.60
±0.20
14.47
±0.40
1.02
±0.10
(0.25) 4.58
±0.20
4.58
+0.25
–0.15
0.38
+0.10
–0.05
0.38
+0.10
–0.05
TO-92
MC78LXXA/LM78LXXA/MC78L05AA
11
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
4.92 ±0.20
0.194 ±0.008
0.41 ±0.10
0.016 ±0.004
1.27
0.050
5.72
0.225
1.55 ±0.20
0.061 ±0.008
0.1~0.25
0.004~0.001
6.00 ±0.30
0.236 ±0.012
3.95 ±0.20
0.156 ±0.008
0.50 ±0.20
0.020 ±0.008
5.13
0.202 MAX
#1
#4 #5
0~8°
#8
0.56
0.022
()
1.80
0.071
MAX0.10
MAX0.004
MAX
MIN
+0.10
-0.05
0.15+0.004
-0.002
0.006
8-SOP
MC78LXXA/LM78LXXA/MC78L05AA
12
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
SOT-89
0.40
±0.10
2.50
±0.20
(0.50)
(0.40)
4.10
±0.20
0.40
+0.10
–0.05
0.50
±0.10
1.65
±0.10
4.50
±0.20
1.50
±0.20
C0.2
1.50 TYP 1.50 TYP
(1.10)
MC78LXXA/LM78LXXA/MC78L05AA
13
Ordering Information
Product Number Package Output Voltage Tolerance Operating Temperature
LM78L05ACZ TO-92 5% 0 ~ +125°C
LM78L12ACZ
Product Number Package Output Voltage Tolerance Operating Temperature
MC78L05ACP
TO-92
5%
0 ~ +125°C
MC78L08ACP
MC78L12ACP
MC78L15ACP
MC78L18ACP
MC78L24ACP
MC78L05ACD 8-SOPMC78L08ACD
MC78L12ACD
MC78L05ACH SOT-89MC78L08ACH
MC78L12ACH
MC78L05AACP TO-92 2%
MC78LXXA/LM78LXXA/MC78L05AA
7/2/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semicond uctor Corporation
LIFE SU PP ORT POL ICY
FAIRCHILD’S PRODUCTS AR E NOT AUTHORIZED FOR USE AS C RITICAL COMPONENTS I N LIFE S UPPORT DEVICE S
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORA TION. As used he rein :
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.
2. A critical component in any component of a life support
device or syst em who se failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effec tiv ene ss.
www.fairchildsemi.com
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRO DUCTS HEREIN TO IMPROVE RELIABILITY, FUN C TION OR DESIGN . FAIRCHILD DO ES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
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