MC78L00, A
Three-Terminal Low Current
Positive Voltage Regulators
The MC78L00, A Series of positive voltage regulators are inexpensive,
easy–to–use devices suitable for a multitude of applications that require a
regulated supply of up to 100 mA. Like their higher powered MC7800 and
MC78M00 Series cousins, these regulators feature internal current limiting
and thermal shutdown making them remarkably rugged. No external
components are required with the MC78L00 devices in many applications.
These devices offer a substantial performance advantage over the
traditional zener diode–resistor combination, as output impedance and
quiescent current are substantially reduced.
•
Wide Range of Available, Fixed Output Voltages
P SUFFIX
CASE 29
Series
Pin 1. Output
2. GND
3. Input
1
2
3
•
•
•
•
•
•
Low Cost
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
No External Components Required
Complementary Negative Regulators Offered (MC79L00 Series)
Available in either
±5%
(AC) or
±10%
(C) Selections
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)*
Vout
GND
GND
NC
5.
6.
7.
8.
NC
GND
GND
Vin
Pin 1.
2.
3.
4.
Representative Schematic Diagram
Input
Q12
Q1
Q10
3.8k
Q4
Q6
5.0k
3.0
0–25k
Output
15k
Q3
Q5
Q11
* SOP–8 is an internally modified SO–8 package.
Pins 2, 3, 6, and 7 are electrically common to the die
attach flag. This internal lead frame modification
decreases package thermal resistance and
increases power dissipation capability when
appropriately mounted on a printed circuit board.
SOP–8 conforms to all external dimensions of the
standard SO–8 package.
Standard Application
Input
Cin*
0.33µF
MC78LXX
Output
CO**
1.2k
Q2
1.9k
19k
C
2.2k
Q9
Q8
2.85k
Z1
420
Q7
1.0k
Ground
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 2.0 V above the output voltage even
during the low point on the input ripple voltage.
*Cin is required if regulator is located an
*appreciable
distance from power supply filter.
**CO is not needed for stability; however, it does
*improve
transient response.
ORDERING INFORMATION
Device
MC78LXXACD*
MC78LXXACP
MC78LXXCP
MC78LXXABD*
MC78LXXABP*
TJ = –40° to +125°C
TJ = 0° to +125°C
Operating
Temperature Range
Package
SOP–8
Plastic Power
Plastic Power
SOP–8
Plastic Power
DEVICE TYPE/NOMINAL VOLTAGE
10%
MC78L05C
MC78L08C
MC78L09C
MC78L12C
MC78L15C
MC78L18C
MC78L24C
5%
MC78L05AC
MC78L08AC
MC78L09AC
MC78L12AC
MC78L15AC
MC78L18AC
MC78L24AC
Voltage
5.0
8.0
9.0
12
15
18
24
XX indicates nominal voltage
*Available in 5, 8, 9, 12 and 15 V devices.
MOTOROLA ANALOG IC DEVICE DATA
3–197
MC78L00, A Series
MAXIMUM RATINGS
(TA = +125°C, unless otherwise noted.)
Rating
Input Voltage (2.6 V–8.0 V)
Input Voltage
(12 V–18 V)
Input Voltage
(24 V)
Storage Temperature Range
Operating Junction Temperature Range
Symbol
VI
Value
30
35
40
–65 to +150
0 to +150
Unit
Vdc
Tstg
TJ
°C
°C
ELECTRICAL CHARACTERISTICS
(VI = 10 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
– 40°C < TJ < +125°C (for MC78LXXAB),
0°C < TJ < +125°C (for MC78LXXAC), unless otherwise noted.)
MC78L05AC, AB
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
7.0 Vdc
≤
VI
≤
20 Vdc
8.0 Vdc
≤
VI
≤
20 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(7.0 Vdc
≤
VI
≤
20 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(VI = 10 V, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(8.0 Vdc
≤
VI
≤
20 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 8.0 Vdc
≤
VI
≤
18 V, TJ = +25°C)
Dropout Voltage (TJ = +25°C)
Symbol
VO
Regline
Min
4.8
Typ
5.0
Max
5.2
Min
4.6
MC78L05C
Typ
5.0
Max
5.4
Unit
Vdc
mV
–
–
Regload
–
–
VO
4.75
4.75
IIB
–
–
∆I
IB
–
–
Vn
RR
VI – VO
–
41
–
–
–
40
49
1.7
1.5
0.1
–
–
–
–
–
–
40
–
–
–
40
49
1.7
1.5
0.2
–
–
–
µV
dB
Vdc
3.8
–
6.0
5.5
–
–
3.8
–
6.0
5.5
mA
–
–
5.25
5.25
4.5
4.5
–
–
5.5
5.5
mA
11
5.0
60
30
–
–
11
5.0
60
30
Vdc
55
45
150
100
–
–
55
45
200
150
mV
ELECTRICAL CHARACTERISTICS
(VI = 14 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
– 40°C < TJ < +125°C (for MC78LXXAB),
0°C < TJ < +125°C (for MC78LXXAC), unless otherwise noted.)
MC78L08AC, AB
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
10.5 Vdc
≤
VI
≤
23 Vdc
11 Vdc
≤
VI
≤
23 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(10.5 Vdc
≤
VI
≤
23 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(VI = 14 V, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(11 Vdc
≤
VI
≤
23 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 12 V
≤
VI
≤
23 V, TJ = +25°C)
Dropout Voltage (TJ = +25°C)
Symbol
VO
Regline
Min
7.7
Typ
8.0
Max
8.3
Min
7.36
MC78L08C
Typ
8.0
Max
8.64
Unit
Vdc
mV
–
–
Regload
–
–
VO
7.6
7.6
IIB
–
–
∆I
IB
–
–
Vn
RR
VI – VO
–
37
–
–
–
60
57
1.7
1.5
0.1
–
–
–
–
–
–
36
–
–
–
52
55
1.7
1.5
0.2
–
–
–
µV
dB
Vdc
3.0
–
6.0
5.5
–
–
3.0
–
6.0
5.5
mA
–
–
8.4
8.4
7.2
7.2
–
–
8.8
8.8
mA
15
8.0
80
40
–
–
15
6.0
80
40
Vdc
20
12
175
125
–
–
20
12
200
150
mV
3–198
MOTOROLA ANALOG IC DEVICE DATA
MC78L00, A Series
ELECTRICAL CHARACTERISTICS
(VI = 15 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
– 40°C < TJ < +125°C (for MC78LXXAB),
0°C < TJ < +125°C (for MC78LXXAC), unless otherwise noted.)
MC78L09AC, AB
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
11.5 Vdc
≤
VI
≤
24 Vdc
12 Vdc
≤
VI
≤
24 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(11.5 Vdc
≤
VI
≤
24 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(VI = 15 V, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(11 Vdc
≤
VI
≤
23 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 13 V
≤
VI
≤
24 V, TJ = +25°C)
Dropout Voltage
(TJ = +25°C)
Symbol
VO
Regline
–
–
Regload
–
–
VO
8.5
8.5
IIB
–
–
∆I
IB
–
–
Vn
RR
VI – VO
–
37
–
–
–
60
57
1.7
1.5
0.1
–
–
–
–
–
–
36
–
–
–
52
55
1.7
1.5
0.2
–
–
–
µV
dB
Vdc
3.0
–
6.0
5.5
–
–
3.0
–
6.0
5.5
mA
–
–
9.5
9.5
8.1
8.1
–
–
9.9
9.9
mA
15
8.0
90
40
–
–
15
6.0
90
40
Vdc
20
12
175
125
–
–
20
12
200
150
mV
Min
8.6
Typ
9.0
Max
9.4
Min
8.3
MC78L09C
Typ
9.0
Max
9.7
Unit
Vdc
mV
ELECTRICAL CHARACTERISTICS
(VI = 19 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
– 40°C < TJ < +125°C (for MC78LXXAB),
0°C < TJ < +125°C (for MC78LXXAC), unless otherwise noted.)
MC78L12AC, AB
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
14.5 Vdc
≤
VI
≤
27 Vdc
16 Vdc
≤
VI
≤
27 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(14.5 Vdc
≤
VI
≤
27 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(VI = 19 V, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(16 Vdc
≤
VI
≤
27 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 15 V
≤
VI
≤
25 V, TJ = +25°C)
Dropout Voltage
(TJ = +25°C)
Symbol
VO
Regline
–
–
Regload
–
–
VO
11.4
11.4
IIB
–
–
∆I
IB
–
–
Vn
RR
VI – VO
–
37
–
–
–
80
42
1.7
1.5
0.1
–
–
–
–
–
–
36
–
–
–
80
42
1.7
1.5
0.2
–
–
–
µV
dB
Vdc
4.2
–
6.5
6.0
–
–
4.2
–
6.5
6.0
mA
–
–
12.6
12.6
10.8
10.8
–
–
13.2
13.2
mA
20
10
100
50
–
–
20
10
100
50
Vdc
120
100
250
200
–
–
120
100
250
200
mV
Min
11.5
Typ
12
Max
12.5
Min
11.1
MC78L12C
Typ
12
Max
12.9
Unit
Vdc
mV
MOTOROLA ANALOG IC DEVICE DATA
3–199
MC78L00, A Series
ELECTRICAL CHARACTERISTICS
(VI = 23 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
– 40°C < TJ < +125°C (for MC78LXXAB),
S
0°C < TJ < +125°C (for MC78LXXAC), unless otherwise noted.)
MC78L15AC, AB
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
17.5 Vdc
≤
VI
≤
30 Vdc
20 Vdc
≤
VI
≤
30 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(17.5 Vdc
≤
VI
≤
30 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(VI = 23 V, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(20 Vdc
≤
VI
≤
30 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 18.5 V
≤
VI
≤
28.5 V, TJ = +25°C)
Dropout Voltage
(TJ = +25°C)
Symbol
VO
Regline
Min
14.4
Typ
15
Max
15.6
Min
13.8
MC78L15C
Typ
15
Max
16.2
Unit
Vdc
mV
–
–
Regload
–
–
VO
14.25
14.25
IIB
–
–
∆I
IB
–
–
Vn
RR
VI – VO
–
34
–
–
–
90
39
1.7
1.5
0.1
–
–
–
–
–
–
33
–
–
–
90
39
1.7
1.5
0.2
–
–
–
µV
dB
Vdc
4.4
–
6.5
6.0
–
–
4.4
–
6.5
6.0
mA
–
–
15.75
15.75
13.5
13.5
–
–
16.5
16.5
mA
25
12
150
75
–
–
25
12
150
75
Vdc
130
110
300
250
–
–
130
110
300
250
mV
ELECTRICAL CHARACTERISTICS
(VI = 27 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
0°C < TJ < +125°C, unless otherwise noted.)
MC78L18AC
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
21.4 Vdc
≤
VI
≤
33 Vdc
20.7 Vdc
≤
VI
≤
33 Vdc
22 Vdc
≤
VI
≤
33 Vdc
21 Vdc
≤
VI
≤
33 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(21.4 Vdc
≤
VI
≤
33 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(20.7 Vdc
≤
VI
≤
33 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(VI = 27 V, 1.0 mA
≤
IO
≤
70 mA)
(VI = 27 V, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(22 Vdc
≤
VI
≤
33 Vdc)
(21 Vdc
≤
VI
≤
33 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 23 V
≤
VI
≤
33 V, TJ = +25°C)
Dropout Voltage
(TJ = +25°C)
Symbol
VO
Min
17.3
Typ
18
Max
18.7
Min
16.6
MC78L18C
Typ
18
Max
19.4
Unit
Vdc
Regline
–
–
–
45
35
30
15
325
–
275
170
85
–
–
16.2
17.1
17.1
–
–
3.1
–
18.9
16.2
18.9
32
27
325
275
mV
Regload
–
–
VO
–
–
19.8
19.8
30
15
170
85
mV
Vdc
IIB
–
–
∆I
IB
–
–
–
Vn
RR
VI – VO
–
33
–
–
–
150
48
1.7
1.5
0.1
–
–
–
–
–
32
–
–
–
150
46
1.7
1.5
0.2
–
–
–
6.5
6.0
–
–
3.1
–
6.5
6.0
mA
mA
µV
dB
Vdc
3–200
MOTOROLA ANALOG IC DEVICE DATA
MC78L00, A Series
ELECTRICAL CHARACTERISTICS
(VI = 33 V, IO = 40 mA, CI = 0.33
µF,
CO = 0.1
µF,
0°C < TJ < +125°C, unless otherwise noted.)
MC78L24AC
Characteristics
Output Voltage (TJ = +25°C)
Line Regulation
(TJ = +25°C, IO = 40 mA)
27.5 Vdc
≤
VI
≤
38 Vdc
28 Vdc
≤
VI
≤
80 Vdc
27 Vdc
≤
VI
≤
38 Vdc
Load Regulation
(TJ = +25°C, 1.0 mA
≤
IO
≤
100 mA)
(TJ = +25°C, 1.0 mA
≤
IO
≤
40 mA)
Output Voltage
(28 Vdc
≤
VI
≤
38 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(27 Vdc
≤
VI
≤
38 Vdc, 1.0 mA
≤
IO
≤
40 mA)
(28 Vdc
≤
VI = 33 Vdc, 1.0 mA
≤
IO
≤
70 mA)
(27 Vdc
≤
VI
≤
33 Vdc, 1.0 mA
≤
IO
≤
70 mA)
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
Input Bias Current Change
(28 Vdc
≤
VI
≤
38 Vdc)
(1.0 mA
≤
IO
≤
40 mA)
Output Noise Voltage
(TA = +25°C, 10 Hz
≤
f
≤
100 kHz)
Ripple Rejection (IO = 40 mA,
f = 120 Hz, 29 V
≤
VI
≤
35 V, TJ = +25°C)
Dropout Voltage
(TJ = +25°C)
Symbol
VO
Regline
–
–
–
Regload
–
–
VO
21.6
22.8
22.8
IIB
–
–
∆I
IB
–
–
Vn
RR
VI – VO
–
31
–
–
–
200
45
1.7
1.5
0.1
–
–
–
–
–
–
30
–
–
–
200
43
1.7
1.5
0.2
–
–
–
µV
dB
Vdc
3.1
–
6.5
6.0
–
–
3.1
–
6.5
6.0
mA
–
–
25.2
21.6
25.2
mA
–
26.4
–
26.4
40
20
200
100
–
–
40
20
200
100
Vdc
–
50
60
–
300
350
–
–
–
35
30
–
350
300
–
mV
Min
23
Typ
24
Max
25
Min
22.1
MC78L24C
Typ
24
Max
25.9
Unit
Vdc
mV
MOTOROLA ANALOG IC DEVICE DATA
3–201
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