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Электронный компонент: MC78M05ACDT

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Semiconductor Components Industries, LLC, 2005
November, 2005 - Rev. 16
1
Publication Order Number:
MC78M00/D
MC78M00, MC78M00A
Series
500 mA Positive Voltage
Regulators
The MC78M00/MC78M00A Series positive voltage regulators are
identical to the popular MC7800 Series devices, except that they are
specified for only half the output current. Like the MC7800 devices,
the MC78M00 three-terminal regulators are intended for local,
on-card voltage regulation.
Internal current limiting, thermal shutdown circuitry and safe-area
compensation for the internal pass transistor combine to make these
devices remarkably rugged under most operating conditions.
Maximum output current, with adequate heatsinking is 500 mA.
Features
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe-Area Compensation
MC78M00A High Accuracy (
2%)
Available for 5.0 V, 8.0 V, 12 V and 15 V
Pb-Free Packages are Available*
Figure 1. Representative Schematic Diagram
This device contains 28 active transistors.
1.0 k
1.0 k
Input
210
6.7
V
16 k
100
200
300
3.6
k
6.4
k
520
6.0 k
2.0 k
3.9 k
6.0
k
2.8 k
40
pF
5.6 k
3.0 k
1.0 k
300
200
50
13
0.24
GND
Output
10 pF
2.6 k
*For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
TO-220
T SUFFIX
CASE 221A
1
DPAK-3
DT SUFFIX
CASE 369C
MARKING
DIAGRAMS
xxxxx = Device Type and Voltage Option Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
WW
= Work Week
G
= Pb-Free Package
2
3
See detailed ordering and shipping information in the package
dimensions section on page 10-14 of this data sheet.
ORDERING INFORMATION
Heatsink surface
connected to Pin 2.
Pin 1. Input
2. Ground
3. Output
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
MC
AWLYWWG
78MxxXXT
http://onsemi.com
1 2
3
4
xxxxxG
ALYWW
xx
= Voltage Option
XX = Appropriate Suffix Options
A
= Assembly Location
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= Pb-Free Package
See general marking information in the device marking
section on page 10 of this data sheet.
DEVICE MARKING INFORMATION
MC78M00, MC78M00A Series
http://onsemi.com
2
MAXIMUM RATINGS
(T
A
= 25
C, unless otherwise noted) (Note 1)
Rating
Symbol
Value
Unit
Input Voltage (5.0 V-18 V)
V
I
35
Vdc
(20 V-24V)
40
Power Dissipation (Package Limitation)
Plastic Package, T Suffix
T
A
= 25
C
P
D
Internally Limited
Thermal Resistance, Junction-to-Air
q
JA
70
C/W
Thermal Resistance, Junction-to-Case
q
JC
5.0
C/W
Plastic Package, DT Suffix
T
A
= 25
C
P
D
Internally Limited
Thermal Resistance, Junction-to-Air
q
JA
92
C/W
Thermal Resistance, Junction-to-Case
q
JC
5.0
C/W
Operating Junction Temperature Range
T
J
+150
C
Storage Temperature Range
T
stg
-65 to +150
C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL-STD-883, Method 3015.
Machine Model Method 200 V.
MC78M05C/AC/B/AB ELECTRICAL CHARACTERISTICS
(V
I
= 10 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 2)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
Vdc
MC78M05C
4.8
5.0
5.2
MC78M05AC
4.9
5.0
5.1
Output Voltage Variation
V
O
Vdc
(7.0 Vdc
V
I
20 Vdc, 5.0 mA
I
O
350 mA)
MC78M05C
4.75
-
5.25
MC78M05AC
4.80
-
5.20
Line Regulation
Reg
line
-
3.0
50
mV
(T
J
= 25
C, 7.0 Vdc
V
I
25 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
20
100
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
50
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.0
mA
Quiescent Current Change
D
I
IB
mA
(8.0 Vdc
V
I
25 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
40
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 8.0 V
V
I
18 V)
62
-
-
(I
O
= 300 mA, f = 120 Hz, 8.0
V
I
18 V, T
J
= 25
C)
62
80
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.2
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
2. T
low
= 0
C for MC78MxxAC, C
T
high
= +125
C for MC78MxxAB, AC, B, C
= -40
C for MC78MxxAB, B
MC78M00, MC78M00A Series
http://onsemi.com
3
MC78M06C ELECTRICAL CHARACTERISTICS
(V
I
= 11 V, I
O
= 350 mA, 0
C < T
J
< 125
C, P
D
5.0 W, unless otherwise noted)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
5.75
6.0
6.25
Vdc
Output Voltage Variation
V
O
5.7
-
6.3
Vdc
(8.0 Vdc
V
I
21 Vdc, 5.0 mA
I
O
350 mA)
Line Regulation
Reg
line
-
5.0
50
mV
(T
J
= 25
C, 8.0 Vdc
V
I
25 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
20
120
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
60
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.0
mA
Quiescent Current Change
D
I
IB
mA
(9.0 Vdc
V
I
25 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
45
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 9.0 V
V
I
19 V)
59
-
-
(I
O
= 300 mA, f = 120 Hz, 9.0 V
V
I
19 V, T
J
= 25
C)
59
80
-
Dropout Voltage
V
I
- V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.2
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
MC78M08C/AC/B/AB ELECTRICAL CHARACTERISTICS
(V
I
= 14 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 3)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
Vdc
MC78M08C
7.70
8.0
8.30
MC78M08AC
7.84
8.0
8.16
Output Voltage Variation
V
O
Vdc
(10.5 Vdc
V
I
23 Vdc, 5.0 mA
I
O
350 mA)
MC78M08C
7.6
-
8.4
MC78M08AC
7.7
-
8.3
Line Regulation
Reg
line
-
6.0
50
mV
(T
J
= 25
C, 10.5 Vdc
V
I
25 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
25
160
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
80
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.0
mA
Quiescent Current Change
D
I
IB
mA
(10.5 Vdc
V
I
25 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
52
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 11.5 V
V
I
21.5 V)
56
-
-
(I
O
= 300 mA, f = 120 Hz, 11.5 V
V
I
21.5 V, T
J
= 25
C)
56
80
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.2
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
3. T
low
= 0
C for MC78MxxAC, C
T
high
= +125
C for MC78MxxAB, AC, B, C
= -40
C for MC78MxxAB, B
MC78M00, MC78M00A Series
http://onsemi.com
4
MC78M09C/B ELECTRICAL CHARACTERISTICS
(V
I
= 15 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W, unless otherwise
noted) (Note 4)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
8.64
9.0
9.45
Vdc
Output Voltage Variation
V
O
8.55
-
9.45
Vdc
(11.5 Vdc
V
I
23 Vdc, 5.0 mA
I
O
350 mA)
Line Regulation
Reg
line
-
6.0
50
mV
(T
J
= 25
C, 11.5 Vdc
V
I
25 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
25
180
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
90
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.0
mA
Quiescent Current Change
D
I
IB
mA
(11.5 Vdc
V
I
25 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
52
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 12.5 V
V
I
22.5 V)
56
-
-
(I
O
= 300 mA, f = 120 Hz, 12.5 V
V
I
22.5 V, T
J
= 25
C)
56
80
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.2
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
MC78M12C/AC/B/AB ELECTRICAL CHARACTERISTICS
(V
I
= 19 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 4)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
Vdc
MC78M12C
11.50
12
12.50
MC78M12AC
11.76
12
12.24
Output Voltage Variation
V
O
Vdc
(14.5 Vdc
V
I
27 Vdc, 5.0 mA
I
O
350 mA)
MC78M12C
11.4
-
12.6
MC78M12AC
11.5
-
12.5
Line Regulation
Reg
line
-
8.0
50
mV
(T
J
= 25
C, 14.5 Vdc
V
I
30 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
25
240
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
120
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.0
mA
Quiescent Current Change
D
I
IB
mA
(14.5 Vdc
V
I
30 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
75
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 15 V
V
I
25 V)
55
-
-
(I
O
= 300 mA, f = 120 Hz, 15 V
V
I
25 V, T
J
= 25
C)
55
80
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.3
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
4. T
low
= 0
C for MC78MxxAC, C
T
high
= +125
C for MC78MxxAB, AC, B, C
= -40
C for MC78MxxAB, B
MC78M00, MC78M00A Series
http://onsemi.com
5
MC78M15C/AC/B/AB ELECTRICAL CHARACTERISTICS
(V
I
= 23 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 5)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
Vdc
MC78M15C
14.4
15
15.6
MC78M15AC
14.7
15
15.3
Output Voltage Variation
V
O
Vdc
(17.5 Vdc
V
I
30 Vdc, 5.0 mA
I
O
350 mA)
MC78M15C
14.25
-
15.75
MC78M15AC
14.40
-
15.60
Input Regulation
Reg
line
-
10
50
mV
(T
J
= 25
C, 17.5 Vdc
V
I
30 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
25
300
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
150
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.0
mA
Quiescent Current Change
D
I
IB
mA
(17.5 Vdc
V
I
30 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
90
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 18.5 V
V
I
28.5 V)
54
-
-
(I
O
= 300 mA, f = 120 Hz, 18.5 V
V
I
28.5 V, T
J
= 25
C)
54
70
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.3
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
MC78M18C/B ELECTRICAL CHARACTERISTICS
(V
I
= 27 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 5)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
17.3
18
18.7
Vdc
Output Voltage Variation
V
O
17.1
-
18.9
Vdc
(21 Vdc
V
I
33 Vdc, 5.0 mA
I
O
350 mA)
Line Regulation
Reg
line
-
10
50
mV
(T
J
= 25
C, 21 Vdc
V
I
33 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
30
360
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
180
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.5
mA
Quiescent Current Change
D
I
IB
mA
(21 Vdc
V
I
33 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
100
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 22 V
V
I
32 V)
53
-
-
(I
O
= 300 mA, f = 120 Hz, 22 V
V
I
32 V, T
J
= 25
C)
53
70
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.3
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
5. T
low
= 0
C for MC78MxxAC, C
T
high
= +125
C for MC78MxxAB, AC, B, C
= -40
C for MC78MxxAB, B
MC78M00, MC78M00A Series
http://onsemi.com
6
MC78M20C/B ELECTRICAL CHARACTERISTICS
(V
I
= 29 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 6)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
19.2
20
20.8
Vdc
Output Voltage Variation
V
O
19
-
21
Vdc
(23 Vdc
V
I
35 Vdc, 5.0 mA
I
O
350 mA)
Line Regulation
Reg
line
-
10
50
mV
(T
J
= 25
C, 23 Vdc
V
I
35 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
30
400
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
200
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
6.5
mA
Quiescent Current Change
D
I
IB
mA
(23 Vdc
V
I
35 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
110
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 24 V
V
I
34 V)
52
-
-
(I
O
= 300 mA, f = 120 Hz, 24 V
V
I
34 V, T
J
= 25
C)
52
70
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C, V
I
= 35 V)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.5
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
MC78M24C/B ELECTRICAL CHARACTERISTICS
(V
I
= 33 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 6)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
23
24
25
Vdc
Output Voltage Variation
V
O
22.8
-
25.2
Vdc
(27 Vdc
V
I
38 Vdc, 5.0 mA
I
O
350 mA)
Line Regulation
Reg
line
-
10
50
mV
(T
J
= 25
C, 27 Vdc
V
I
38 Vdc, I
O
= 200 mA)
Load Regulation
Reg
load
mV
(T
J
= 25
C, 5.0 mA
I
O
500 mA)
-
30
480
(T
J
= 25
C, 5.0 mA
I
O
200 mA)
-
10
240
Input Bias Current (T
J
= 25
C)
I
IB
-
3.2
7.0
mA
Quiescent Current Change
D
I
IB
mA
(27 Vdc
V
I
38 Vdc, I
O
= 200 mA)
-
-
0.8
(5.0 mA
I
O
350 mA)
-
-
0.5
Output Noise Voltage (T
A
= 25
C, 10 Hz
f
100 kHz)
V
n
-
170
-
m
V
Ripple Rejection
RR
dB
(I
O
= 100 mA, f = 120 Hz, 28 V
V
I
38 V)
50
-
-
(I
O
= 300 mA, f = 120 Hz, 28 V
V
I
38 V, T
J
= 25
C)
50
70
-
Dropout Voltage
V
I
-V
O
-
2.0
-
Vdc
(T
J
= 25
C)
Short Circuit Current Limit (T
J
= 25
C)
I
OS
-
50
-
mA
Average Temperature Coefficient of Output Voltage
D
V
O
/
D
T
-
0.5
-
mV/
C
(I
O
= 5.0 mA)
Peak Output Current
I
O
-
700
-
mA
(T
J
= 25
C)
6. T
low
= 0
C for MC78MxxAC, C
T
high
= +125
C for MC78MxxAB, AC, B, C
= -40
C for MC78MxxAB, B
MC78M00, MC78M00A Series
http://onsemi.com
7
DEFINITIONS
Line Regulation - The change in output voltage for a
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
Load Regulation - The change in output voltage for a
change in load current at constant chip temperature.
Maximum Power Dissipation - The maximum total
device dissipation for which the regulator will operate
within specifications.
Input Bias Current - That part of the input current that
is not delivered to the load.
Output Noise Voltage - The rms AC voltage at the
output, with constant load and no input ripple, measured
over a specified frequency range.
Long Term Stability - Output voltage stability under
accelerated life test conditions with the maximum rated
voltage listed in the devices' electrical characteristics and
maximum power dissipation.
Figure 2. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
Figure 3. Worst Case Power Dissipation
versus Ambient Temperature (TO-220)
, POWER DISSIP
A
TION (W)
D
P
q
JC
= 5
C/W
P
D(max)
= 7.52 W
No Heat Sink
q
HS
= 20
C/W
q
HS
= 10
C/W
Infinite Heat
Sink
R
,
THERMAL

RESIST
ANCE
JA
JUNCTION-T
O-AIR ( C/W)
L, LENGTH OF COPPER (mm)
P D
, MAXIMUM POWER DISSIP
A
TION (W)
R
qJA
10
5.0
3.0
2.0
1.0
0.5
0.3
0.2
0.1
40
50
60
70
80
90
100
T
A
, AMBIENT TEMPERATURE (
C)
25
50
75
100
125
150
0
10
20
30
25
15
5.0
L
L
Free Air
Mounted
Vertically
2.0 oz. Copper
P
D(max)
for T
A
= 50
C
0
0.4
0.8
1.2
1.6
2.0
2.4
Minimum
Size Pad
MC78M00, MC78M00A Series
http://onsemi.com
8
T
J
= 25
C
Figure 4. Peak Output Current versus
Dropout Voltage
Figure 5. Dropout Voltage versus
Junction Temperature
Figure 6. Ripple Rejection versus Frequency
Figure 7. Ripple Rejection versus Output Current
Figure 8. Bias Current versus Input Voltage
100
80
60
40
20
1.0
10
100
1.0 k
10 k
100 k
1.0 M
10 M
100 M
f, FREQUENCY (Hz)
RR, RIPPLE REJECTION (dB)
I
out
= 500 mA
, DROPOUT
VOL
T
AGE (V)
IO
T
J
, JUNCTION TEMPERATURE (
C)
2.5
2.0
1.5
1.0
0.5
0
0
25
50
75
100
125
150
-V
V
DV
O
= 100 mV
I
O
= 500 mA
I
O
= 100 mA
I
O
= 10 mA
RR, RIPPLE REJECTION (dB)
I
O
, OUTPUT CURRENT (A)
100
80
60
40
30
0.01
0.1
0.5 1.0
10
V
out
= 5.0 V
V
in
= 10 V
C
O
= 0
f = 120 Hz
T
J
= 25
C
, BIAS CURRENT
(mA)
B
V
I
, INPUT VOLTAGE (Vdc)
4.0
3.0
2.0
1.0
0
0
5.0
10
15
20
25
30
35
40
I
T
J
= 25
C
T
J
= 125
C
T
J
= 125
C
T
J
= 25
C
V
O
= 5.0 V
I
O
= 0.5 A
I
O
, OUTPUT CURRENT (A)
5.0
4.0
3.0
2.0
1.0
0
0.01
0.1
0.5
1.0
10
T
J
= 125
C
V
I
-V
O
= 5.0 V
Figure 9. Bias Current versus Output Current
, OUTPUT
CURRENT
(A)
O
V
I
- V
O
, DROPOUT VOLTAGE (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
5.0
10
15
20
25
30
35
40
T
J
= 125
C
T
J
= 25
C
I
, BIAS CURRENT
(mA)
BI
I
out
= 500 mA
V
out
= 5.0 V
V
in
= 10 V
C
O
= 0
T
J
= 25
C
MC78M00, MC78M00A Series
http://onsemi.com
9
APPLICATIONS INFORMATION
Design Considerations
The MC78M00/MC78M00A Series of fixed voltage
regulators are designed with Thermal Overload Protection
that shuts down the circuit when subjected to an excessive
power overload condition, Internal Short Circuit Protection
that limits the maximum current the circuit will pass, and
Output Transistor Safe-Area Compensation that reduces the
output short circuit current as the voltage across the pass
transistor is increased.
In many low current applications, compensation
capacitors are not required. However, it is recommended
that the regulator input be bypassed with a capacitor if the
regulator is connected to the power supply filter with long
wire lengths, or if the output load capacitance is large. An
input bypass capacitor should be selected to provide good
high frequency characteristics to insure stable operation
under all load conditions. A 0.33
mF or larger tantalum,
mylar, or other capacitor having low internal impedance at
high frequencies should be chosen. The bypass capacitor
should be mounted with the shortest possible leads directly
across the regulator's input terminals. Normally good
construction techniques should be used to minimize ground
loops and lead resistance drops since the regulator has no
external sense lead.
The addition of an operational amplifier allows adjustment to higher
or intermediate values while retaining regulation characteristics.
The minimum voltage obtainable with this arrangement is 2.0 V
greater than the regulator voltage.
Input
MC78M05C
Output
0.33
mF
10 k
MC1741
7
6
4
1.0 k
0.1
mF
3
2
The MC78M00 series can be current boosted with a PNP
transistor. The MJ2955 provides current to 5.0 A. Resistor R in
conjunction with the V
BE
of the PNP determines when the pass
transistor begins conducting; this circuit is not short circuit
proof. Input-output differential voltage minimum is increased
by V
BE
of the pass transistor.
XX = 2 digits of type number indicating voltage.
MC78MXXC
Input
Output
R
1.0
mF
MJ2955 or Equiv.
1.0
mF
The circuit of Figure 12 can be modified to provide supply protection
against short circuits by adding a short circuit sense resistor, R
sc
,
and an additional PNP transistor. The current sensing PNP must be
able to handle the short circuit current of the three-terminal
regulator .Therefore, a 4.0 A plastic power transistor is specified.
XX = 2 digits of type number indicating voltage.
1.0
mF
MC78MXXC
MJ2955
or Equiv.
Input
Output
R
SC
R
2N6049
or Equiv.
V
O
, 7.0 V to 20 V
V
in
-V
out
2.0 V
*
+
Figure 10. Current Regulator
The MC78M00 regulators can also be used as a current source
when connected as above. In order to minimize dissipation the
MC78M05C is chosen in this application. Resistor R determines
the current as follows:
For example, a 500 mA current source would require R to be a
10
W, 10 W resistor and the output voltage compliance would be
the input voltage less 7.0 V.
I
O
=
5.0 V
R
+ I
IB
I
IB
= 1.5 mA over line and load changes.
Input
0.33
mF
R
I
O
MC78M05C
Constant
Current to
Grounded
Load
Figure 11. Adjustable Output Regulator
Figure 12. Current Boost Regulator
Figure 13. Current Boost with
Short Circuit Protection
MC78M00, MC78M00A Series
http://onsemi.com
10
ORDERING INFORMATION
Device
Output
Voltage
Temperature Range
Package
Marking
Shipping
MC78M05CDT
5.0 V
T
J
= 0
to +125
C
DPAK-3
78M05
75 Units / Rail
MC78M05CDTG
DPAK-3
(Pb-Free)
78M05
MC78M05CDTRK
DPAK-3
78M05
2500 Units / Tape & Reel
MC78M05CDTRKG
DPAK-3
(Pb-Free)
78M05
MC78M05ACDT
DPAK-3
8M05D
75 Units / Rail
MC78M05ACDTG
DPAK-3
(Pb-Free)
8M05D
MC78M05ACDTRK
DPAK-3
8M05D
2500 Units / Tape & Reel
MC78M05ACDTRKG
DPAK-3
(Pb-Free)
8M05D
MC78M05CT
TO-220
78M05CT
50 Units / Rail
MC78M05CTG
TO-220
(Pb-Free)
78M05CT
MC78M05ACT
TO-220
78M05ACT
50 Units / Rail
MC78M05ACTG
TO-220
(Pb-Free)
78M05ACT
MC78M05ABDT
T
J
= -40
to +125
C
DPAK-3
8M05A
75 Units / Rail
MC78M05ABDTG
DPAK-3
(Pb-Free)
8M05A
MC78M05ABDTRK
DPAK-3
8M05A
2500 Units / Tape & Reel
MC78M05ABDTRKG
DPAK-3
(Pb-Free)
8M05A
MC78M05ABT
TO-220
78M05ABT
50 Units / Rail
MC78M05ABTG
TO-220
(Pb-Free)
78M05ABT
MC78M05BDT
DPAK-3
8M05B
75 Units / Rail
MC78M05BDTG
DPAK-3
(Pb-Free)
8M05B
MC78M05BDTRK
DPAK-3
8M05B
2500 Units / Tape & Reel
MC78M05BDTRKG
DPAK-3
(Pb-Free)
8M05B
MC78M05BT
TO-220
78M05BT
50 Units / Rail
MC78M05BTG
TO-220
(Pb-Free)
78M05BT
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MC78M00, MC78M00A Series
http://onsemi.com
11
ORDERING INFORMATION
Device
Output
Voltage
Temperature Range
Package
Marking
Shipping
MC78M06CDT
6.0 V
T
J
= 0
to +125
C
DPAK-3
78M06
75 Units / Rail
MC78M06CDTG
DPAK-3
(Pb-Free)
78M06
MC78M06CDTRK
DPAK-3
78M06
2500 Units / Tape & Reel
MC78M06CDTRKG
DPAK-3
(Pb-Free)
78M06
MC78M06CT
TO-220
78M06CT
50 Units / Rail
MC78M06CTG
TO-220
(Pb-Free)
78M06CT
MC78M06BT
T
J
= -40
to +125
C
TO-220
78M06BT
MC78M06BTG
TO-220
(Pb-Free)
78M06BT
MC78M08CDT
8.0 V
T
J
= 0
to +125
C
DPAK-3
78M08
75 Units / Rail
MC78M08CDTG
DPAK-3
(Pb-Free)
78M08
MC78M08CDTRK
DPAK-3
78M08
2500 Units / Tape & Reel
MC78M08CDTRKG
DPAK-3
(Pb-Free)
78M08
MC78M08ACDT
DPAK-3
8M08D
75 Units / Rail
MC78M08ACDTG
DPAK-3
(Pb-Free)
8M08D
MC78M08ACDTRK
DPAK-3
8M08D
2500 Units / Tape & Reel
MC78M08ACDTRKG
DPAK-3
(Pb-Free)
8M08D
MC78M08CT
TO-220
78M08CT
50 Units / Rail
MC78M08CTG
TO-220
(Pb-Free)
78M08CT
MC78M08ACT
TO-220
78M08ACT
MC78M08ACTG
TO-220
(Pb-Free)
78M08ACT
MC78M08ABDT
T
J
= -40
to +125
C
DPAK-3
8M08A
75 Units / Rail
MC78M08ABDTG
DPAK-3
8M08A
MC78M08ABDTRK
DPAK-3
8M08A
2500 Units / Tape & Reel
MC78M08ABDTRKG
DPAK-3
(Pb-Free)
8M08A
MC78M08ABT
TO-220
78M08ABT
50 Units / Rail
MC78M08ABTG
TO-220
(Pb-Free)
78M08ABT
MC78M08BDT
DPAK-3
8M08B
75 Units / Rail
MC78M08BDTG
DPAK-3
(Pb-Free)
8M08B
MC78M08BDTRK
DPAK-3
8M08B
2500 Units / Tape & Reel
MC78M08BDTRKG
DPAK-3
(Pb-Free)
8M08B
MC78M08BT
TO-220
78M08BT
50 Units / Rail
MC78M08BTG
TO-220
(Pb-Free)
78M08BT
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MC78M00, MC78M00A Series
http://onsemi.com
12
ORDERING INFORMATION
Device
Output
Voltage
Temperature Range
Package
Marking
Shipping
MC78M09CDT
9.0 V
T
J
= 0
to +125
C
DPAK-3
78M09
75 Units / Rail
MC78M09CDTG
DPAK-3
(Pb-Free)
78M09
75 Units / Rail
MC78M09CDTRK
DPAK-3
78M09
2500 Units / Tape & Reel
MC78M09CDTRKG
DPAK-3
(Pb-Free)
78M09
2500 Units / Tape & Reel
MC78M09CT
TO-220
78M09CT
50 Units / Rail
MC78M09CTG
TO-220
(Pb-Free)
78M09CT
50 Units / Rail
MC78M09BDT
T
J
= -40
to +125
C
DPAK-3
8M09B
75 Units / Rail
MC78M09BDTG
DPAK-3
(Pb-Free)
8M09B
75 Units / Rail
MC78M09BDTRK
DPAK-3
8M09B
2500 Units / Tape & Reel
MC78M09BDTRKG
DPAK-3
(Pb-Free)
8M09B
2500 Units / Tape & Reel
MC78M12CDT
12 V
T
J
= 0
to +125
C
DPAK-3
78M12
75 Units / Rail
MC78M12CDTG
DPAK-3
(Pb-Free)
78M12
MC78M12CDTRK
DPAK-3
78M12
2500 Units / Tape & Reel
MC78M12CDTRKG
DPAK-3
(Pb-Free)
78M12
MC78M12ACDT
DPAK-3
8M12D
75 Units / Rail
MC78M12ACDTG
DPAK-3
(Pb-Free)
8M12D
MC78M12ACDTRK
DPAK-3
8M12D
2500 Units / Tape & Reel
MC78M12ACDTRKG
DPAK-3
(Pb-Free)
8M12D
MC78M12CT
TO-220
78M12CT
50 Units / Rail
MC78M12CTG
TO-220
78M12CT
MC78M12ACT
TO-220
78M12ACT
MC78M12ACTG
TO-220
(Pb-Free)
78M12ACT
MC78M12ABDT
T
J
= -40
to +125
C
DPAK-3
8M12A
75 Units / Rail
MC78M12ABDTG
DPAK-3
(Pb-Free)
8M12A
MC78M12ABDTRK
DPAK-3
8M12A
2500 Units / Tape & Reel
MC78M12ABDTRKG
DPAK-3
(Pb-Free)
8M12A
MC78M12ABT
TO-220
78M12ABT
50 Units / Rail
MC78M12ABTG
TO-220
(Pb-Free)
78M12ABT
MC78M12BDT
DPAK-3
8M12B
75 Units / Rail
MC78M12BDTG
DPAK-3
(Pb-Free)
8M12B
MC78M12BDTRK
DPAK-3
8M12B
2500 Units / Tape & Reel
MC78M12BDTRKG
DPAK-3
(Pb-Free)
8M12B
MC78M12BT
TO-220
78M12BT
50 Units / Rail
MC78M12BTG
TO-220
(Pb-Free)
78M12BT
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MC78M00, MC78M00A Series
http://onsemi.com
13
ORDERING INFORMATION
Device
Output
Voltage
Temperature Range
Package
Marking
Shipping
MC78M15CDT
15 V
T
J
= 0
to +125
C
DPAK-3
78M15
75 Units / Rail
MC78M15CDTG
DPAK-3
(Pb-Free)
78M15
MC78M15CDTRK
DPAK-3
78M15
2500 Units / Tape & Reel
MC78M15CDTRKG
DPAK-3
(Pb-Free)
78M15
MC78M15ACDT
DPAK-3
8M15D
75 Units / Rail
MC78M15ACDTG
DPAK-3
(Pb-Free)
8M15D
MC78M15ACDTRK
DPAK-3
8M15D
2500 Units / Tape & Reel
MC78M15ACDTRKG
DPAK-3
(Pb-Free)
8M15D
MC78M15CT
TO-220
78M15CT
50 Units / Rail
MC78M15CTG
TO-220
(Pb-Free)
78M15CT
MC78M15ACT
TO-220
78M15ACT
MC78M15ACTG
TO-220
(Pb-Free)
78M15ACT
MC78M15ABDT
T
J
= -40
to +125
C
DPAK-3
8M15A
75 Units / Rail
MC78M15ABDTG
DPAK-3
(Pb-Free)
8M15A
MC78M15ABDTRK
DPAK-3
8M15A
2500 Units / Tape & Reel
MC78M15ABDTRKG
DPAK-3
(Pb-Free)
8M15A
MC78M15ABT
TO-220
78M15ABT
50 Units / Rail
MC78M15ABTG
TO-220
(Pb-Free)
78M15ABT
MC78M15BDT
DPAK-3
8M15B
75 Units / Rail
MC78M15BDTG
DPAK-3
(Pb-Free)
8M15B
MC78M15BDTRK
DPAK-3
8M15B
2500 Units / Tape & Reel
MC78M15BDTRKG
DPAK-3
(Pb-Free)
8M15B
MC78M15BT
TO-220
78M15BT
50 Units / Rail
MC78M15BTG
TO-220
(Pb-Free)
78M15BT
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MC78M00, MC78M00A Series
http://onsemi.com
14
ORDERING INFORMATION
Device
Output
Voltage
Temperature Range
Package
Marking
Shipping
MC78M18CDT
18 V
T
J
= 0
to +125
C
DPAK-3
78M18
75 Units / Rail
MC78M18CDTG
DPAK-3
(Pb-Free)
78M18
MC78M18CDTRK
DPAK-3
78M18
2500 Units / Tape & Reel
MC78M18CDTRKG
DPAK-3
(Pb-Free)
78M18
MC78M18CT
TO-220
78M18CT
50 Units / Rail
MC78M18CTG
TO-220
(Pb-Free)
78M18CT
MC78M18BT
T
J
= -40
to +125
C
TO-220
78M18BT
MC78M18BTG
TO-220
(Pb-Free)
78M18BT
MC78M20CT
20 V
T
J
= 0
to +125
C
TO-220
78M20CT
50 Units / Rail
MC78M20CTG
TO-220
(Pb-Free)
78M20CT
MC78M20BT
T
J
= -40
to +125
C
TO-220
78M20BT
MC78M24CT
24 V
T
J
= 0
to +125
C
TO-220
78M24CT
MC78M24CTG
TO-220
(Pb-Free)
78M24CT
MC78M24BT
T
J
= -40
to +125
C
TO-220
78M24BT
MC78M24BTG
TO-220
(Pb-Free)
78M24BT
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MC78M00, MC78M00A Series
http://onsemi.com
15
PACKAGE DIMENSIONS
DPAK-3
DT SUFFIX
CASE 369C-01
ISSUE O
D
A
K
B
R
V
S
F
L
G
2 PL
M
0.13 (0.005)
T
E
C
U
J
H
-T-
SEATING
PLANE
Z
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
A
0.235
0.245
5.97
6.22
B
0.250
0.265
6.35
6.73
C
0.086
0.094
2.19
2.38
D
0.027
0.035
0.69
0.88
E
0.018
0.023
0.46
0.58
F
0.037
0.045
0.94
1.14
G
0.180 BSC
4.58 BSC
H
0.034
0.040
0.87
1.01
J
0.018
0.023
0.46
0.58
K
0.102
0.114
2.60
2.89
L
0.090 BSC
2.29 BSC
R
0.180
0.215
4.57
5.45
S
0.025
0.040
0.63
1.01
U
0.020
---
0.51
---
V
0.035
0.050
0.89
1.27
Z
0.155
---
3.93
---
NOTES:
1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
1
2
3
4
5.80
0.228
2.58
0.101
1.6
0.063
6.20
0.244
3.0
0.118
6.172
0.243
mm
inches
SCALE 3:1
*For additional information on our Pb-Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
MC78M00, MC78M00A Series
http://onsemi.com
16
PACKAGE DIMENSIONS
TO-220
T SUFFIX
CASE 221A-09
ISSUE AA
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION Z DEFINES A ZONE WHERE ALL
BODY AND LEAD IRREGULARITIES ARE
ALLOWED.
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
A
0.570
0.620
14.48
15.75
B
0.380
0.405
9.66
10.28
C
0.160
0.190
4.07
4.82
D
0.025
0.035
0.64
0.88
F
0.142
0.147
3.61
3.73
G
0.095
0.105
2.42
2.66
H
0.110
0.155
2.80
3.93
J
0.018
0.025
0.46
0.64
K
0.500
0.562
12.70
14.27
L
0.045
0.060
1.15
1.52
N
0.190
0.210
4.83
5.33
Q
0.100
0.120
2.54
3.04
R
0.080
0.110
2.04
2.79
S
0.045
0.055
1.15
1.39
T
0.235
0.255
5.97
6.47
U
0.000
0.050
0.00
1.27
V
0.045
---
1.15
---
Z
---
0.080
---
2.04
B
Q
H
Z
L
V
G
N
A
K
F
1 2 3
4
D
SEATING
PLANE
-T-
C
S
T
U
R
J
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
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