© Semiconductor Components Industries, LLC, 2011
December, 2011 Rev. 25
1Publication Order Number:
MC78M00/D
MC78M00, MC78M00A,
NCV78M00 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 threeterminal regulators are intended for local,
oncard voltage regulation.
Internal current limiting, thermal shutdown circuitry and safearea
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 SafeArea Compensation
MC78M00A High Accuracy (±2%)
Available for 5.0 V, 8.0 V, 12 V and 15 V
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
PbFree Packages are Available*
Figure 1. Representative Schematic Diagram
This device contains 28 active transistors.
1.0 k 1.0 k Input
210
6.7
V16 k 100
200
300
3.6
k
6.4
k
520
6.0 k
2.0 k 3.9 k
6.0
k2.8 k
40
pF
5.6 k
3.0 k
1.0 k
300
20050
13
0.24
GND
Output
10 pF
2.6 k
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
TO220
T SUFFIX
CASE 221AB
1
DPAK3
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 = PbFree Package
23
See detailed ordering and shipping information in the package
dimensions section on page 1014 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
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12
3
4xxxxxG
ALYWW
xx = Voltage Option
XX = Appropriate Suffix Options
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = PbFree Package
See general marking information in the device marking
section on page 10 of this data sheet.
DEVICE MARKING INFORMATION
MC78M00, MC78M00A, NCV78M00 Series
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2
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted) (Note 1)
Rating Symbol Value Unit
Input Voltage (5.0 V18 V) VI35 Vdc
(20 V24V) 40
Power Dissipation (Package Limitation)
Plastic Package, T Suffix
TA = 25°C PDInternally Limited
Thermal Resistance, JunctiontoAir qJA 70 °C/W
Thermal Resistance, JunctiontoCase qJC 5.0 °C/W
Plastic Package, DT Suffix
TA = 25°C PDInternally Limited
Thermal Resistance, JunctiontoAir qJA 92 °C/W
Thermal Resistance, JunctiontoCase qJC 5.0 °C/W
Operating Junction Temperature Range TJ+150 °C
Storage Temperature Range Tstg 65 to +150 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MILSTD883, Method 3015.
Machine Model Method 200 V.
MC78M05C/AC/B/AB, NCV78M05AB/B ELECTRICAL CHARACTERISTICS (VI = 10 V, IO = 350 mA, TJ = Tlow to Thigh, PD
5 W, unless otherwise noted) (Note 2)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VOVdc
MC78M05B/MC78M05C/NCV78M05B 4.8 5.0 5.2
MC78M05AB/MC78M05AC/NCV78M05AB 4.9 5.0 5.1
Output Voltage Variation VOVdc
(7.0 Vdc VI 20 Vdc, 5.0 mA IO 350 mA)
MC78M05B/MC78M05C/NCV78M05B 4.75 5.25
MC78M05AB/MC78M05AC/NCV78M05AB 4.80 5.20
Line Regulation Regline 3.0 50 mV
(TJ = 25°C, 7.0 Vdc VI 25 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 20 100
(TJ = 25°C, 5.0 mA IO 200 mA) 10 50
Input Bias Current (TJ = 25°C) IIB 3.2 6.0 mA
Quiescent Current Change DIIB mA
(8.0 Vdc VI 25 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn40 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 8.0 V VI 18 V) 62
(IO = 300 mA, f = 120 Hz, 8.0 VI 18 V, TJ = 25°C) 62 80
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.2 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
2. Tlow =0°C for MC78MxxAC, C Thigh = +125°C for MC78MxxAB, AC, B, C, NCV78MxxAB, B
=40°C for MC78MxxAB, B, NCV78MxxAB, B
MC78M00, MC78M00A, NCV78M00 Series
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MC78M06C/B ELECTRICAL CHARACTERISTICS (VI = 11 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5.0 W, unless otherwise noted)
(Note 3)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VO5.75 6.0 6.25 Vdc
Output Voltage Variation VO5.7 6.3 Vdc
(8.0 Vdc VI 21 Vdc, 5.0 mA IO 350 mA)
Line Regulation Regline 5.0 50 mV
(TJ = 25°C, 8.0 Vdc VI 25 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 20 120
(TJ = 25°C, 5.0 mA IO 200 mA) 10 60
Input Bias Current (TJ = 25°C) IIB 3.2 6.0 mA
Quiescent Current Change DIIB mA
(9.0 Vdc VI 25 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn45 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 9.0 V VI 19 V) 59
(IO = 300 mA, f = 120 Hz, 9.0 V VI 19 V, TJ = 25°C) 59 80
Dropout Voltage VI VO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.2 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
MC78M08C/AC/B/AB, NCV78M08B ELECTRICAL CHARACTERISTICS (VI = 14 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5 W,
unless otherwise noted) (Note 3)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VOVdc
MC78M08B/MC78M08C/NCV78M08B 7.70 8.0 8.30
MC78M08AB/MC78M08AC 7.84 8.0 8.16
Output Voltage Variation VOVdc
(10.5 Vdc VI 23 Vdc, 5.0 mA IO 350 mA)
MC78M08B/MC78M08C/NCV78M08B 7.6 8.4
MC78M08AB/MC78M08AC 7.7 8.3
Line Regulation Regline 6.0 50 mV
(TJ = 25°C, 10.5 Vdc VI 25 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 25 160
(TJ = 25°C, 5.0 mA IO 200 mA) 10 80
Input Bias Current (TJ = 25°C) IIB 3.2 6.0 mA
Quiescent Current Change DIIB mA
(10.5 Vdc VI 25 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn52 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 11.5 V VI 21.5 V) 56
(IO = 300 mA, f = 120 Hz, 11.5 V VI 21.5 V, TJ = 25°C) 56 80
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.2 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
3. Tlow =0°C for MC78MxxAC, C Thigh = +125°C for MC78MxxAB, AC, B, C, NCV78MxxAB, B
=40°C for MC78MxxAB, B, NCV78MxxAB, B
MC78M00, MC78M00A, NCV78M00 Series
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MC78M09C/B ELECTRICAL CHARACTERISTICS (VI = 15 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5.0 W, unless otherwise
noted) (Note 4)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VO8.64 9.0 9.45 Vdc
Output Voltage Variation VO8.55 9.45 Vdc
(11.5 Vdc VI 23 Vdc, 5.0 mA IO 350 mA)
Line Regulation Regline 6.0 50 mV
(TJ = 25°C, 11.5 Vdc VI 25 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 25 180
(TJ = 25°C, 5.0 mA IO 200 mA) 10 90
Input Bias Current (TJ = 25°C) IIB 3.2 6.0 mA
Quiescent Current Change DIIB mA
(11.5 Vdc VI 25 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn52 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 12.5 V VI 22.5 V) 56
(IO = 300 mA, f = 120 Hz, 12.5 V VI 22.5 V, TJ = 25°C) 56 80
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.2 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
MC78M12C/AC/B/AB, NCV78M12B ELECTRICAL CHARACTERISTICS (VI = 19 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5 W,
unless otherwise noted) (Note 4)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VOVdc
MC78M12B/MC78M12C/NCV78M12B 11.50 12 12.50
MC78M12AB/MC78M12AC 11.76 12 12.24
Output Voltage Variation VOVdc
(14.5 Vdc VI 27 Vdc, 5.0 mA IO 350 mA)
MC78M12B/MC78M12C/NCV78M12B 11.4 12.6
MC78M12AB/MC78M12AC 11.5 12.5
Line Regulation Regline 8.0 50 mV
(TJ = 25°C, 14.5 Vdc VI 30 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 25 240
(TJ = 25°C, 5.0 mA IO 200 mA) 10 120
Input Bias Current (TJ = 25°C) IIB 3.2 6.0 mA
Quiescent Current Change DIIB mA
(14.5 Vdc VI 30 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn75 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 15 V VI 25 V) 55
(IO = 300 mA, f = 120 Hz, 15 V VI 25 V, TJ = 25°C) 55 80
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.3 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
4. Tlow =0°C for MC78MxxAC, C Thigh = +125°C for MC78MxxAB, AC, B, C, NCV78MxxAB, B
=40°C for MC78MxxAB, B, NCV78MxxAB, B
MC78M00, MC78M00A, NCV78M00 Series
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MC78M15C/AC/B/AB, NCV78M15B ELECTRICAL CHARACTERISTICS (VI = 23 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5 W,
unless otherwise noted) (Note 5)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VOVdc
MC78M15B/MC78M15C/NCV78M15B 14.4 15 15.6
MC78M15AB/MC78M15AC 14.7 15 15.3
Output Voltage Variation VOVdc
(17.5 Vdc VI 30 Vdc, 5.0 mA IO 350 mA)
MC78M15B/MC78M15C/NCV78M15B 14.25 15.75
MC78M15AB/MC78M15AC 14.40 15.60
Input Regulation Regline 10 50 mV
(TJ = 25°C, 17.5 Vdc VI 30 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 25 300
(TJ = 25°C, 5.0 mA IO 200 mA) 10 150
Input Bias Current (TJ = 25°C) IIB 3.2 6.0 mA
Quiescent Current Change DIIB mA
(17.5 Vdc VI 30 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn90 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 18.5 V VI 28.5 V) 54
(IO = 300 mA, f = 120 Hz, 18.5 V VI 28.5 V, TJ = 25°C) 54 70
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.3 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
MC78M18C/B ELECTRICAL CHARACTERISTICS (VI = 27 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5 W,
unless otherwise noted) (Note 5)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VO17.3 18 18.7 Vdc
Output Voltage Variation VO17.1 18.9 Vdc
(21 Vdc VI 33 Vdc, 5.0 mA IO 350 mA)
Line Regulation Regline 10 50 mV
(TJ = 25°C, 21 Vdc VI 33 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 30 360
(TJ = 25°C, 5.0 mA IO 200 mA) 10 180
Input Bias Current (TJ = 25°C) IIB 3.2 6.5 mA
Quiescent Current Change DIIB mA
(21 Vdc VI 33 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn100 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 22 V VI 32 V) 53
(IO = 300 mA, f = 120 Hz, 22 V VI 32 V, TJ = 25°C) 53 70
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.3 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
5. Tlow =0°C for MC78MxxAC, C Thigh = +125°C for MC78MxxAB, AC, B, C, NCV78MxxAB, B
=40°C for MC78MxxAB, B, NCV78MxxAB, B
MC78M00, MC78M00A, NCV78M00 Series
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MC78M20C/B ELECTRICAL CHARACTERISTICS (VI = 29 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5.0 W,
unless otherwise noted) (Note 6)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VO19.2 20 20.8 Vdc
Output Voltage Variation VO19 21 Vdc
(23 Vdc VI 35 Vdc, 5.0 mA IO 350 mA)
Line Regulation Regline 10 50 mV
(TJ = 25°C, 23 Vdc VI 35 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 30 400
(TJ = 25°C, 5.0 mA IO 200 mA) 10 200
Input Bias Current (TJ = 25°C) IIB 3.2 6.5 mA
Quiescent Current Change DIIB mA
(23 Vdc VI 35 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn110 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 24 V VI 34 V) 52
(IO = 300 mA, f = 120 Hz, 24 V VI 34 V, TJ = 25°C) 52 70
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.5 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
MC78M24C/B ELECTRICAL CHARACTERISTICS (VI = 33 V, IO = 350 mA, TJ = Tlow to Thigh, PD 5.0 W,
unless otherwise noted) (Note 6)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C) VO23 24 25 Vdc
Output Voltage Variation VO22.8 25.2 Vdc
(27 Vdc VI 38 Vdc, 5.0 mA IO 350 mA)
Line Regulation Regline 10 50 mV
(TJ = 25°C, 27 Vdc VI 38 Vdc, IO = 200 mA)
Load Regulation Regload mV
(TJ = 25°C, 5.0 mA IO 500 mA) 30 480
(TJ = 25°C, 5.0 mA IO 200 mA) 10 240
Input Bias Current (TJ = 25°C) IIB 3.2 7.0 mA
Quiescent Current Change DIIB mA
(27 Vdc VI 38 Vdc, IO = 200 mA) 0.8
(5.0 mA IO 350 mA) 0.5
Output Noise Voltage (TA = 25°C, 10 Hz f 100 kHz) Vn170 mV
Ripple Rejection RR dB
(IO = 100 mA, f = 120 Hz, 28 V VI 38 V) 50
(IO = 300 mA, f = 120 Hz, 28 V VI 38 V, TJ = 25°C) 50 70
Dropout Voltage VIVO2.0 Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C) IOS 350 mA
Average Temperature Coefficient of Output Voltage DVO/DT±0.5 mV/°C
(IO = 5.0 mA)
Peak Output Current IO700 mA
(TJ = 25°C)
6. Tlow =0°C for MC78MxxAC, C Thigh = +125°C for MC78MxxAB, AC, B, C
=40°C for MC78MxxAB, B
MC78M00, MC78M00A, NCV78M00 Series
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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 (TO220)
, POWER DISSIPATION (W)
D
P
qJC = 5°C/W
PD(max) = 7.52 W
No Heat Sink
qHS = 20°C/W
qHS = 10°C/W Infinite Heat
Sink
R , THERMAL RESISTANCE
JAθ
JUNCTION-TO-AIR ( C/W)°
L, LENGTH OF COPPER (mm)
PD, MAXIMUM POWER DISSIPATION (W)
RqJA
10
5.0
3.0
2.0
1.0
0.5
0.3
0.2
0.1
40
50
60
70
80
90
100
TA, AMBIENT TEMPERATURE (°C)
25 50 75 100 125 150
0 10203025155.0
L
L
Free Air
Mounted
Vertically 2.0 oz. Copper
PD(max) for TA = 50°C
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
0
0.4
0.8
1.2
1.6
2.0
2.4
Minimum
Size Pad
MC78M00, MC78M00A, NCV78M00 Series
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8
TJ = 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)
Iout = 500 mA
, DROPOUT VOLTAGE (V)
IO
TJ, JUNCTION TEMPERATURE (°C)
2.5
2.0
1.5
1.0
0.5
00 25 50 75 100 125 150
-VV
DVO = 100 mV
IO = 500 mA
IO = 100 mA
IO = 10 mA
RR, RIPPLE REJECTION (dB)
IO, OUTPUT CURRENT (A)
100
80
60
40
30
0.01 0.1 0.5 1.0 10
Vout = 5.0 V
Vin = 10 V
CO = 0
f = 120 Hz
TJ = 25°C
, BIAS CURRENT (mA)
B
VI, INPUT VOLTAGE (Vdc)
4.0
3.0
2.0
1.0
00 5.0 10 15 20 25 30 35 40
I
TJ = 25°C
TJ = 125°C
TJ = 125°C
TJ = 25°C
VO = 5.0 V
IO = 0.5 A
IO, OUTPUT CURRENT (A)
5.0
4.0
3.0
2.0
1.0
0
0.01 0.1 0.5 1.0 10
TJ = 125°C
VI-VO = 5.0 V
Figure 9. Bias Current versus Output Current
, OUTPUT CURRENT (A)
O
VI - VO, DROPOUT VOLTAGE (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
00 5.0 10 15 20 25 30 35 40
TJ = 125°C
TJ = 25°C
I
, BIAS CURRENT (mA)
B
I
Iout = 500 mA
Vout = 5.0 V
Vin = 10 V
CO = 0
TJ = 25°C
MC78M00, MC78M00A, NCV78M00 Series
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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 SafeArea 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 regulators 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 VBE 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 VBE 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, Rsc,
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
RSC
R
2N6049
or Equiv.
VO, 7.0 V to 20 V
Vin-Vout 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.
IO = 5.0 V
R+ IIB
IIB = 1.5 mA over line and load changes.
Input
0.33 mFR
IO
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, NCV78M00 Series
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10
ORDERING INFORMATION
Device
Output
Voltage Temperature Range Package Marking Shipping
MC78M05CDT
5.0 V
TJ = 0° to +125°C
DPAK3 78M05
75 Units / Rail
MC78M05CDTG DPAK3
(PbFree)
78M05
MC78M05CDTT5G DPAK3
(PbFree)
78M05
2500 / Tape & Reel
MC78M05CDTRK DPAK3 78M05
MC78M05CDTRKG DPAK3
(PbFree)
78M05
MC78M05ACDT DPAK3 8M05D
75 Units / Rail
MC78M05ACDTG DPAK3
(PbFree)
8M05D
MC78M05ACDTRK DPAK3 8M05D
2500 / Tape & Reel
MC78M05ACDTRKG DPAK3
(PbFree)
8M05D
MC78M05CT TO220 78M05CT
50 Units / Rail
MC78M05CTG TO220
(PbFree)
78M05CT
MC78M05ACT TO220 78M05ACT
50 Units / Rail
MC78M05ACTG TO220
(PbFree)
78M05ACT
MC78M05ABDT
TJ = 40° to +125°C
DPAK3 8M05A
75 Units / Rail
MC78M05ABDTG DPAK3
(PbFree)
8M05A
MC78M05ABDTRK DPAK3 8M05A
2500 / Tape & Reel
MC78M05ABDTRKG DPAK3
(PbFree)
8M05A
NCV78M05ABDTRKG* DPAK3
(PbFree)
8M05A 2500 / Tape & Reel
MC78M05ABT TO220 78M05ABT
50 Units / Rail
MC78M05ABTG TO220
(PbFree)
78M05ABT
MC78M05BDT DPAK3 8M05B
75 Units / Rail
MC78M05BDTG DPAK3
(PbFree)
8M05B
MC78M05BDTT5G DPAK3
(PbFree)
8M05B
2500 / Tape & Reel
MC78M05BDTRK DPAK3 8M05B
MC78M05BDTRKG DPAK3
(PbFree)
8M05B
NCV78M05BDTRK* DPAK3 8M05B
NCV78M05BDTRKG* DPAK3
(PbFree)
8M05B
MC78M05BT TO220 78M05BT
50 Units / Rail
MC78M05BTG TO220
(PbFree)
78M05BT
NCV78M05BTG* TO220
(PbFree)
78M05BT 50 Units / Rail
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.
*NCV devices: Tlow = 40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and control
change.
MC78M00, MC78M00A, NCV78M00 Series
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11
ORDERING INFORMATION
Device
Output
Voltage Temperature Range Package Marking Shipping
MC78M06CDT
6.0 V
TJ = 0° to +125°C
DPAK3 78M06
75 Units / Rail
MC78M06CDTG DPAK3
(PbFree)
78M06
MC78M06CDTRK DPAK3 78M06
2500 / Tape & Reel
MC78M06CDTRKG DPAK3
(PbFree)
78M06
MC78M06CT TO220 78M06CT
50 Units / Rail
MC78M06CTG TO220
(PbFree)
78M06CT
MC78M06BT
TJ = 40° to +125°C
TO220 78M06BT
MC78M06BTG TO220
(PbFree)
78M06BT
MC78M06BDTRKG DPAK3
(PbFree)
8M06B 2500 / Tape & Reel
MC78M00, MC78M00A, NCV78M00 Series
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12
ORDERING INFORMATION
Device Shipping
MarkingPackageTemperature Range
Output
Voltage
Device Shipping
MarkingPackageTemperature Range
Output
Voltage
MC78M08CDT
8.0 V
TJ = 0° to +125°C
DPAK3 78M08
75 Units / Rail
MC78M08CDTG DPAK3
(PbFree)
78M08
MC78M08CDTRK DPAK3 78M08
2500 Units / Tape & Reel
MC78M08CDTRKG DPAK3
(PbFree)
78M08
MC78M08ACDT DPAK3 8M08D
75 Units / Rail
MC78M08ACDTG DPAK3
(PbFree)
8M08D
MC78M08ACDTRK DPAK3 8M08D
2500 Units / Tape & Reel
MC78M08ACDTRKG DPAK3
(PbFree)
8M08D
MC78M08CT TO220 78M08CT
50 Units / Rail
MC78M08CTG TO220
(PbFree)
78M08CT
MC78M08ACT TO220 78M08ACT
MC78M08ACTG TO220
(PbFree)
78M08ACT
MC78M08ABDT
TJ = 40° to +125°C
DPAK3 8M08A
75 Units / Rail
MC78M08ABDTG DPAK3
(PbFree)
8M08A
MC78M08ABDTRK DPAK3 8M08A
2500 Units / Tape & Reel
MC78M08ABDTRKG DPAK3
(PbFree)
8M08A
MC78M08ABT TO220 78M08ABT
50 Units / Rail
MC78M08ABTG TO220
(PbFree)
78M08ABT
MC78M08BDT DPAK3 8M08B
75 Units / Rail
MC78M08BDTG DPAK3
(PbFree)
8M08B
MC78M08BDTRK DPAK3 8M08B
2500 Units / Tape & Reel
MC78M08BDTRKG DPAK3
(PbFree)
8M08B
NCV78M08BDTRKG* DPAK3
(PbFree)
8M08B 2500 Units / Tape & Reel
MC78M08BT TO220 78M08BT
50 Units / Rail
MC78M08BTG TO220
(PbFree)
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.
*NCV devices: Tlow = 40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and control
change.
MC78M00, MC78M00A, NCV78M00 Series
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13
ORDERING INFORMATION
Device
Output
Voltage Temperature Range Package Marking Shipping
MC78M09CDT
9.0 V
TJ = 0° to +125°C
DPAK3 78M09 75 Units / Rail
MC78M09CDTG DPAK3
(PbFree)
78M09 75 Units / Rail
MC78M09CDTRK DPAK3 78M09 2500 Units / Tape & Reel
MC78M09CDTRKG DPAK3
(PbFree)
78M09 2500 Units / Tape & Reel
MC78M09CT TO220 78M09CT 50 Units / Rail
MC78M09CTG TO220
(PbFree)
78M09CT 50 Units / Rail
MC78M09BDT
TJ = 40° to +125°C
DPAK3 8M09B 75 Units / Rail
MC78M09BDTG DPAK3
(PbFree)
8M09B 75 Units / Rail
MC78M09BDTRK DPAK3 8M09B 2500 Units / Tape & Reel
MC78M09BDTRKG DPAK3
(PbFree)
8M09B 2500 Units / Tape & Reel
MC78M00, MC78M00A, NCV78M00 Series
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14
ORDERING INFORMATION
Device Shipping
MarkingPackageTemperature Range
Output
Voltage
Device Shipping
MarkingPackageTemperature Range
Output
Voltage
MC78M12CDT
12 V
TJ = 0° to +125°C
DPAK3 78M12
75 Units / Rail
MC78M12CDTG DPAK3
(PbFree)
78M12
MC78M12CDTT5G DPAK3
(PbFree)
78M12
2500 Units / Tape & Reel
MC78M12CDTRK DPAK3 78M12
MC78M12CDTRKG DPAK3
(PbFree)
78M12
MC78M12ACDT DPAK3 8M12D
75 Units / Rail
MC78M12ACDTG DPAK3
(PbFree)
8M12D
MC78M12ACDTRK DPAK3 8M12D
2500 Units / Tape & Reel
MC78M12ACDTRKG DPAK3
(PbFree)
8M12D
MC78M12CT TO220 78M12CT
50 Units / Rail
MC78M12CTG TO220 78M12CT
MC78M12ACT TO220 78M12ACT
MC78M12ACTG TO220
(PbFree)
78M12ACT
MC78M12ABDT
TJ = 40° to +125°C
DPAK3 8M12A
75 Units / Rail
MC78M12ABDTG DPAK3
(PbFree)
8M12A
MC78M12ABDTRK DPAK3 8M12A
2500 Units / Tape & Reel
MC78M12ABDTRKG DPAK3
(PbFree)
8M12A
MC78M12ABT TO220 78M12ABT
50 Units / Rail
MC78M12ABTG TO220
(PbFree)
78M12ABT
MC78M12BDT DPAK3 8M12B
75 Units / Rail
MC78M12BDTG DPAK3
(PbFree)
8M12B
MC78M12BDTRK DPAK3 8M12B
2500 Units / Tape & Reel
MC78M12BDTRKG DPAK3
(PbFree)
8M12B
NCV78M12BDTRK* DPAK3 8M12B
2500 Units / Tape & Reel
NCV78M12BDTRKG* DPAK3
(PbFree)
8M12B
MC78M12BT TO220 78M12BT
50 Units / Rail
MC78M12BTG TO220
(PbFree)
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.
*NCV devices: Tlow = 40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and control
change.
MC78M00, MC78M00A, NCV78M00 Series
http://onsemi.com
15
ORDERING INFORMATION
Device
Output
Voltage Temperature Range Package Marking Shipping
MC78M15CDT
15 V
TJ = 0° to +125°C
DPAK3 78M15
75 Units / Rail
MC78M15CDTG DPAK3
(PbFree)
78M15
MC78M15CDTT5G DPAK3
(PbFree)
78M15
2500 Units / Tape & Reel
MC78M15CDTRK DPAK3 78M15
MC78M15CDTRKG DPAK3
(PbFree)
78M15
MC78M15ACDT DPAK3 8M15D
75 Units / Rail
MC78M15ACDTG DPAK3
(PbFree)
8M15D
MC78M15ACDTRK DPAK3 8M15D
2500 Units / Tape & Reel
MC78M15ACDTRKG DPAK3
(PbFree)
8M15D
MC78M15CT TO220 78M15CT
50 Units / Rail
MC78M15CTG TO220
(PbFree)
78M15CT
MC78M15ACT TO220 78M15ACT
MC78M15ACTG TO220
(PbFree)
78M15ACT
MC78M15ABDT
TJ = 40° to +125°C
DPAK3 8M15A
75 Units / Rail
MC78M15ABDTG DPAK3
(PbFree)
8M15A
MC78M15ABDTRK DPAK3 8M15A
2500 Units / Tape & Reel
MC78M15ABDTRKG DPAK3
(PbFree)
8M15A
MC78M15ABT TO220 78M15ABT
50 Units / Rail
MC78M15ABTG TO220
(PbFree)
78M15ABT
MC78M15BDT DPAK3 8M15B
75 Units / Rail
MC78M15BDTG DPAK3
(PbFree)
8M15B
NCV78M15BDTG* DPAK3
(PbFree)
8M15B 75 Units / Rail
MC78M15BDTRK DPAK3 8M15B
2500 Units / Tape & Reel
MC78M15BDTRKG DPAK3
(PbFree)
8M15B
MC78M15BT TO220 78M15BT
50 Units / Rail
MC78M15BTG TO220
(PbFree)
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.
*NCV devices: Tlow = 40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and control
change.
MC78M00, MC78M00A, NCV78M00 Series
http://onsemi.com
16
ORDERING INFORMATION
Device
Output
Voltage Temperature Range Package Marking Shipping
MC78M18CDT
18 V
TJ = 0° to +125°C
DPAK3 78M18
75 Units / Rail
MC78M18CDTG DPAK3
(PbFree)
78M18
MC78M18CDTRK DPAK3 78M18
2500 Units / Tape & Reel
MC78M18CDTRKG DPAK3
(PbFree)
78M18
MC78M18CT TO220 78M18CT
50 Units / Rail
MC78M18CTG TO220
(PbFree)
78M18CT
MC78M18BT TJ = 40° to +125°CTO220 78M18BT
MC78M18BTG TO220
(PbFree)
78M18BT
MC78M20CT
20 V TJ = 0° to +125°C
TO220 78M20CT
50 Units / Rail
MC78M20CTG TO220
(PbFree)
78M20CT
MC78M20BT TJ = 40° to +125°CTO220 78M20BT
MC78M24CT
24 V
TJ = 0° to +125°C
TO220 78M24CT
MC78M24CTG TO220
(PbFree)
78M24CT
MC78M24BT
TJ = 40° to +125°C
TO220 78M24BT
MC78M24BTG TO220
(PbFree)
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.
*NCV devices: Tlow = 40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and control
change.
MC78M00, MC78M00A, NCV78M00 Series
http://onsemi.com
17
PACKAGE DIMENSIONS
DPAK3
DT SUFFIX
CASE 369C01
ISSUE D
b
D
E
b3
L3
L4
b2
eM
0.005 (0.13) C
c2
A
c
C
Z
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
D0.235 0.245 5.97 6.22
E0.250 0.265 6.35 6.73
A0.086 0.094 2.18 2.38
b0.025 0.035 0.63 0.89
c2 0.018 0.024 0.46 0.61
b2 0.030 0.045 0.76 1.14
c0.018 0.024 0.46 0.61
e0.090 BSC 2.29 BSC
b3 0.180 0.215 4.57 5.46
L4 −−− 0.040 −−− 1.01
L0.055 0.070 1.40 1.78
L3 0.035 0.050 0.89 1.27
Z0.155 −−− 3.93 −−−
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
3. THERMAL PAD CONTOUR OPTIONAL WITHIN DI-
MENSIONS b3, L3 and Z.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD
FLASH, PROTRUSIONS, OR BURRS. MOLD
FLASH, PROTRUSIONS, OR GATE BURRS SHALL
NOT EXCEED 0.006 INCHES PER SIDE.
5. DIMENSIONS D AND E ARE DETERMINED AT THE
OUTERMOST EXTREMES OF THE PLASTIC BODY.
6. DATUMS A AND B ARE DETERMINED AT DATUM
PLANE H.
12 3
4
5.80
0.228
2.58
0.102
1.60
0.063
6.20
0.244
3.00
0.118
6.17
0.243
ǒmm
inchesǓ
SCALE 3:1
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
H0.370 0.410 9.40 10.41
A1 0.000 0.005 0.00 0.13
L1 0.108 REF 2.74 REF
L2 0.020 BSC 0.51 BSC
A1
H
DETAIL A
SEATING
PLANE
A
B
C
L1
L
H
L2 GAUGE
PLANE
DETAIL A
ROTATED 90 CW5
MC78M00, MC78M00A, NCV78M00 Series
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18
PACKAGE DIMENSIONS
TO220, SINGLE GAUGE
CASE 221AB01
ISSUE A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCHES.
3. DIMENSION Z DEFINES A ZONE WHERE ALL BODY AND
LEAD IRREGULARITIES ARE ALLOWED.
4. PRODUCT SHIPPED PRIOR TO 2008 HAD DIMENSIONS
S = 0.045 - 0.055 INCHES (1.143 - 1.397 MM)
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.570 0.620 14.48 15.75
B0.380 0.405 9.66 10.28
C0.160 0.190 4.07 4.82
D0.025 0.035 0.64 0.88
F0.142 0.147 3.61 3.73
G0.095 0.105 2.42 2.66
H0.110 0.155 2.80 3.93
J0.018 0.025 0.46 0.64
K0.500 0.562 12.70 14.27
L0.045 0.060 1.15 1.52
N0.190 0.210 4.83 5.33
Q0.100 0.120 2.54 3.04
R0.080 0.110 2.04 2.79
S0.020 0.024 0.508 0.61
T0.235 0.255 5.97 6.47
U0.000 0.050 0.00 1.27
V0.045 --- 1.15 ---
Z--- 0.080 --- 2.04
B
Q
H
Z
L
V
G
N
A
K
F
123
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
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
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USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81358171050
MC78M00/D
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
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Phone: 3036752175 or 8003443860 Toll Free USA/Canada
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Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
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