Semiconductor Components Industries, LLC, 2002
April, 2002 Rev. 10
1
Publication Order Number:
MC7800/D
MC7800, MC7800A, LM340,
LM340A Series, NCV7805
1.0 A Positive Voltage
Regulators
These voltage regulators are monolithic integrated circuits designed
as fixedvoltage regulators for a wide variety of applications
including local, oncard regulation. These regulators employ internal
current limiting, thermal shutdown, and safearea compensation. With
adequate heatsinking they can deliver output currents in excess of
1.0 A. Although designed primarily as a fixed voltage regulator, these
devices can be used with external components to obtain adjustable
voltages and currents.
Output Current in Excess of 1.0 A
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor SafeArea Compensation
Output Voltage Offered in 2% and 4% Tolerance
Available in Surface Mount D
2
PAK, DPAK and Standard 3Lead
Transistor Packages
MAXIMUM RATINGS
(T
A
= 25
C, unless otherwise noted.)
Rating
Symbol
Value
Unit
Input Voltage (5.0 18 V)
V
I
35
Vdc
Input Voltage
(24 V)
40
Power Dissipation
Case 221A (TO220)
T
A
= 25
C
P
D
Internally
Limited
W
Thermal Resistance, JunctiontoAmbient
R
JA
65
C/W
Thermal Resistance, JunctiontoCase
R
JC
5.0
C/W
Case 936 (D
2
PAK)
T
A
= 25
C
P
D
Internally
Limited
W
Thermal Resistance, JunctiontoAmbient
R
JA
See
Figure
14
C/W
Thermal Resistance, JunctiontoCase
R
JA
5.0
C/W
Case 369A (DPAK)
T
A
= 25
C
P
D
Internally
Limited
W
Thermal Resistance, JunctiontoAmbient
R
JA
92
C/W
Thermal Resistance, JunctiontoCase
R
JC
5.0
C/W
Storage Junction Temperature Range
T
stg
65 to
+150
C
Operating Junction Temperature
T
J
+150
C
NOTE: ESD data available upon request.
TO220
T SUFFIX
CASE 221A
1
D
2
PAK
D2T SUFFIX
CASE 936
2
3
See detailed ordering and shipping information in the package
dimensions section on page 16 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.
1
3
STANDARD APPLICATION
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.
XX,
MC78XX
Input
C
in
*
0.33
F
C
O
**
Output
These two digits of the type number
indicate nominal voltage.
C
in
is required if regulator is located an
appreciable distance from power supply
filter.
C
O
is not needed for stability; however,
it does improve transient response. Values
of less than 0.1
F could cause instability.
*
**
See general marking information in the device marking
section on page 18 of this data sheet.
DEVICE MARKING INFORMATION
1
3
DPAK
DT SUFFIX
CASE 369A
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MC7800, MC7800A, LM340, LM340A Series, NCV7805
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2
R15
680
R18
100 k
D1
Zener
R1
10.66 k
R2
1.56 k
R17
9.0 k
Q7
QNPN
LAT
Q17
Q9
QNPN 2
Q8
QNPN
Q14
QNPN
Q6
QNPN
Q5
QNPN 2
LAT 3 A
Q18
R5
4.5 k
R6
1.0 k
Q13
QNPN
Q2
QNPN 4
SUB
Q11 2
R11
15 k
QNPN 6
Q1
R7
14 k
R3
1.8 k
R8
5.0 k
Diode
Q16
Q4
QNPN
N+
C1
30 P
C2
3.0 P
R9
3.0 k
R16
600
R20
17500
Q15
QNPN
Q10
QNPN
R22
100
Q12
QNPN
R24
50
1.0 P
R21
600
R23
0.2
R19
27.5 k
D2
Zener
Q19
QNPN
R14
1.0 k
Q20
QNPN
R28
9.0 k
R27
9.0 k
R29
9.0 k
R25
6.0 k
R26
3.0 k
R12
3.0 k
R10
3340-(3316ACT)
R30
18 k
Sense
V
out
5.01
V
in
R13
11660
Q3
QNPN
MC7800
C3
Figure 1. Representative Schematic Diagram
This device contains 22 active transistors.
MC7800, MC7800A, LM340, LM340A Series, NCV7805
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3
ELECTRICAL CHARACTERISTICS
(V
in
= 10 V, I
O
= 500 mA, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7805B, NCV7805
MC7805C/LM340T5
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
4.8
5.0
5.2
4.8
5.0
5.2
Vdc
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
V
O
Vdc
7.0 Vdc
V
in
20 Vdc
4.75
5.0
5.25
8.0 Vdc
V
in
20 Vdc
4.75
5.0
5.25
Line Regulation (Note 2)
Reg
line
mV
7.5 Vdc
V
in
20 Vdc, 1.0 A
5.0
100
0.5
20
8.0 Vdc
V
in
12 Vdc
1.3
50
0.8
10
Load Regulation (Note 2)
Reg
load
mV
5.0 mA
I
O
1.0 A
1.3
100
1.3
25
5.0 mA
I
O
1.5 A (T
A
= 25
C)
0.15
50
1.3
25
Quiescent Current
I
B
3.2
8.0
3.2
6.5
mA
Quiescent Current Change
I
B
mA
7.0 Vdc
V
in
25 Vdc
0.3
1.0
5.0 mA
I
O
1.0 A (T
A
= 25
C)
0.5
0.08
0.8
Ripple Rejection
RR
68
62
83
dB
8.0 Vdc
V
in
18 Vdc, f = 120 Hz
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
C)
V
I
V
O
2.0
2.0
Vdc
Output Noise Voltage (T
A
= 25
C)
V
n
10
10
V/V
O
10 Hz
f
100 kHz
Output Resistance f = 1.0 kHz
r
O
0.9
0.9
m
Short Circuit Current Limit (T
A
= 25
C)
I
SC
0.2
0.6
A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25
C)
I
max
2.2
2.2
A
Average Temperature Coefficient of
Output Voltage
TCV
O
0.3
0.3
mV/
C
ELECTRICAL CHARACTERISTICS
(V
in
= 10 V, I
O
= 1.0 A, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7805AB/MC7805AC/LM340AT5
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
4.9
5.0
5.1
Vdc
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
V
O
4.8
5.0
5.2
Vdc
7.5 Vdc
V
in
20 Vdc
Line Regulation (Note 2)
Reg
line
mV
7.5 Vdc
V
in
25 Vdc, I
O
= 500 mA
0.5
10
8.0 Vdc
V
in
12 Vdc, I
O
= 1.0 A
0.8
12
8.0 Vdc
V
in
12 Vdc, I
O
= 1.0 A, T
J
= 25
C
1.3
4.0
7.3 Vdc
V
in
20 Vdc, I
O
= 1.0 A, T
J
= 25
C
4.5
10
Load Regulation (Note 2)
Reg
load
mV
5.0 mA
I
O
1.5 A, T
J
= 25
C
1.3
25
5.0 mA
I
O
1.0 A
0.8
25
250 mA
I
O
750 mA
0.53
15
Quiescent Current
I
B
3.2
6.0
mA
Quiescent Current Change
I
B
mA
8.0 Vdc
V
in
25 Vdc, I
O
= 500 mA
0.3
0.8
7.5 Vdc
V
in
20 Vdc, T
J
= 25
C
0.8
5.0 mA
I
O
1.0 A
0.08
0.5
1. T
low
= 0
C for MC78XXAC, C, LM340ATXX, LM340TXX
T
high
= +125
C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805
=
*
40
C for MC78XXB, MC78XXAB, NCV7805
2. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
MC7800, MC7800A, LM340, LM340A Series, NCV7805
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4
ELECTRICAL CHARACTERISTICS
(continued)
(V
in
= 10 V, I
O
= 1.0 A, T
J
= T
low
to T
high
[Note 1], unless
otherwise noted.)
MC7805AB/MC7805AC/LM340AT5
Characteristic
Symbol
Min
Typ
Max
Unit
Ripple Rejection
RR
68
83
dB
8.0 Vdc
V
in
18 Vdc, f = 120 Hz, I
O
= 500 mA
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
C)
V
I
V
O
2.0
Vdc
Output Noise Voltage (T
A
= 25
C)
V
n
10
V/V
O
10 Hz
f
100 kHz
Output Resistance (f = 1.0 kHz)
r
O
0.9
m
Short Circuit Current Limit (T
A
= 25
C)
I
SC
0.2
A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25
C)
I
max
2.2
A
Average Temperature Coefficient of Output Voltage
TCV
O
0.3
mV/
C
ELECTRICAL CHARACTERISTICS
(V
in
= 11 V, I
O
= 500 mA, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7806B
MC7806C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
5.75
6.0
6.25
5.75
6.0
6.25
Vdc
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
V
O
Vdc
8.0 Vdc
V
in
21 Vdc
5.7
6.0
6.3
9.0 Vdc
V
in
21 Vdc
5.7
6.0
6.3
Line Regulation, T
J
= 25
C (Note 2)
Reg
line
mV
8.0 Vdc
V
in
25 Vdc
5.5
120
0.5
24
9.0 Vdc
V
in
13 Vdc
1.4
60
0.8
12
Load Regulation, T
J
= 25
C (Note 2)
Reg
load
1.3
120
1.3
30
mV
5.0 mA
I
O
1.5 A
Quiescent Current (T
J
= 25
C)
I
B
3.3
8.0
3.3
8.0
mA
Quiescent Current Change
I
B
mA
8.0 Vdc
V
in
25 Vdc
0.3
1.3
5.0 mA
I
O
1.0 A
0.5
0.08
0.5
Ripple Rejection
RR
65
58
65
dB
9.0 Vdc
V
in
19 Vdc, f = 120 Hz
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
C)
V
I
V
O
2.0
2.0
Vdc
Output Noise Voltage (T
A
= 25
C)
V
n
10
10
V/V
O
10 Hz
f
100 kHz
Output Resistance f = 1.0 kHz
r
O
0.9
0.9
m
Short Circuit Current Limit (T
A
= 25
C)
I
SC
0.2
0.2
A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25
C)
I
max
2.2
2.2
A
Average Temperature Coefficient of Output
Voltage
TCV
O
0.3
0.3
mV/
C
1. T
low
= 0
C for MC78XXAC, C, LM340ATXX, LM340TXX
T
high
= +125
C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805
=
*
40
C for MC78XXB, MC78XXAB, NCV7805
2. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
MC7800, MC7800A, LM340, LM340A Series, NCV7805
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5
ELECTRICAL CHARACTERISTICS
(V
in
= 11 V, I
O
= 1.0 A, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7806AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
5.88
6.0
6.12
Vdc
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
V
O
5.76
6.0
6.24
Vdc
8.6 Vdc
V
in
21 Vdc
Line Regulation (Note 2)
Reg
line
mV
8.6 Vdc
V
in
25 Vdc, I
O
= 500 mA
5.0
12
9.0 Vdc
V
in
13 Vdc, I
O
= 1.0 A
1.4
15
Load Regulation (Note 2)
Reg
load
mV
5.0 mA
I
O
1.5 A, T
J
= 25
C
1.3
25
5.0 mA
I
O
1.0 A
0.9
25
250 mA
I
O
750 mA
0.2
15
Quiescent Current
I
B
3.3
6.0
mA
Quiescent Current Change
I
B
mA
9.0 Vdc
V
in
25 Vdc, I
O
= 500 mA
0.8
9.0 Vdc
V
in
21 Vdc, I
O
= 1.0 A, T
J
= 25
C
0.8
5.0 mA
I
O
1.0 A
0.5
Ripple Rejection
RR
58
65
dB
9.0 Vdc
V
in
19 Vdc, f = 120 Hz, I
O
= 500 mA
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
C)
V
I
V
O
2.0
Vdc
Output Noise Voltage (T
A
= 25
C)
V
n
10
V/V
O
10 Hz
f
100 kHz
Output Resistance (f = 1.0 kHz)
r
O
0.9
m
Short Circuit Current Limit (T
A
= 25
C)
I
SC
0.2
A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25
C)
I
max
2.2
A
Average Temperature Coefficient of Output Voltage
TCV
O
0.3
mV/
C
ELECTRICAL CHARACTERISTICS
(V
in
= 14 V, I
O
= 500 mA, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7808B
MC7808C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
C)
V
O
7.7
8.0
8.3
7.7
8.0
8.3
Vdc
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
V
O
Vdc
10.5 Vdc
V
in
23 Vdc
7.6
8.0
8.4
11.5 Vdc
V
in
23 Vdc
7.6
8.0
8.4
Line Regulation, T
J
= 25
C, (Note 2)
Reg
line
mV
10.5 Vdc
V
in
25 Vdc
6.0
160
6.0
32
11 Vdc
V
in
17 Vdc
1.7
80
1.7
16
Load Regulation, T
J
= 25
C (Note 2)
Reg
load
1.4
160
1.4
35
mV
5.0 mA
I
O
1.5 A
Quiescent Current
I
B
3.3
8.0
3.3
8.0
mA
Quiescent Current Change
I
B
mA
10.5 Vdc
V
in
25 Vdc
1.0
5.0 mA
I
O
1.0 A
0.5
0.5
1. T
low
= 0
C for MC78XXAC, C, LM340ATXX, LM340TXX
T
high
= +125
C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805
=
*
40
C for MC78XXB, MC78XXAB, NCV7805
2. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
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