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MC78XXE/LM78XXE/MC78XXAE
3-Terminal 1A Positive Voltage Regulator
Features
•
•
•
•
•
Output Current up to 1A
Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24V
Thermal Overload Protection
Short Circuit Protection
Output Transistor Safe Operating Area Protection
Description
The MC78XXE/LM78XXE/MC78XXAE series of three
terminal positive regulators are available in the
TO-220/D-PAK package and with several fixed output
voltages, making them useful in a wide range of
applications. Each type employs internal current limiting,
thermal shut down and safe operating area protection,
making it essentially indestructible. If adequate heat sinking
is provided, they can deliver over 1A output current.
Although designed primarily as fixed voltage regulators,
these devices can be used with external components to
obtain adjustable voltages and currents.
TO-220
GND
1
D-PAK
GND
1
1. Input 2. GND 3. Output
Internal Block Digram
INPUT
1
CURRENT
GENERATOR
SERIES
PASS
ELEMENT
OUTPUT
3
SOA
PROTECTION
STARTING
CIRCUIT
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
THERMAL
PROTECTION
GND
2
Rev. 1.0.0
©2003 Fairchild Semiconductor Corporation
MC78XXE/LM78XXE/MC78XXAE
Absolute Maximum Ratings
Parameter
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
Thermal Resistance Junction-Cases (TO-220)
Thermal Resistance Junction-Air (TO-220)
Operating Temperature Range
Storage Temperature Range
Symbol
V
I
V
I
R
θJC
R
θJA
T
OPR
T
STG
Value
35
40
5
65
0 ~ +125
-65 ~ +150
Unit
V
V
°C/W
°C/W
°C
°C
Electrical Characteristics (MC7805E/LM7805E)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
= 10V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified)
Parameter
Symbol
T
J
= +25°C
Output Voltage
V
O
5.0mA
≤
Io
≤
1.0A, P
O
≤
15W
V
I
= 7V to 20V
T
J
= +25°C
V
O
= 7V to 25V
V
I
= 8V to 12V
I
O
= 5.0mA to1.5A
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift (Note2)
Output Noise Voltage
Ripple Rejection (Note2)
Dropout Voltage
Output Resistance (Note2)
Short Circuit Current
Peak Current (Note2)
Regload
I
Q
∆I
Q
∆V
O
/∆T
V
N
RR
V
Drop
r
O
I
SC
I
PK
T
J
= +25°C
T
J
= +25°C
I
O
= 5mA to 1.0A
V
I
= 7V to 25V
I
O
= 5mA
f = 10Hz to 100kHz, T
A
= +25°C
f = 120Hz
V
O
= 8V to 18V
I
O
= 1A, T
J
=+25°C
f = 1kHz
V
I
= 35V, T
A
=+25°C
T
J
= +25°C
I
O
=250mA to
750mA
Conditions
MC7805E/LM7805E
Min.
4.8
4.75
-
-
-
-
-
-
-
-
-
62
-
-
-
-
Typ.
5.0
5.0
4.0
1.6
9
4
5.0
0.03
0.3
-0.8
42
73
2
15
230
2.2
Max.
5.2
5.25
100
50
100
50
8.0
0.5
1.3
-
-
-
-
-
-
-
mV
mA
mA
mV/°C
µV/Vo
dB
V
mΩ
mA
A
V
mV
Unit
Line Regulation (Note1)
Regline
Note:
1. 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 is used.
2. These parameters, although guaranteed, are not 100% tested in production.
2
MC78XXE/LM78XXE/MC78XXAE
Electrical Characteristics (MC7806E)
(Continued)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
=11V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified)
Parameter
Symbol
T
J
= +25°C
Output Voltage
V
O
5.0mA
≤
I
O
≤
1.0A, P
O
≤
15W
V
I
= 8.0V to 21V
T
J
=+25°C
T
J
=+25°C
T
J
=+25°C
I
O
= 5mA to 1A
V
I
= 8V to 25V
I
O
= 5mA
f = 10Hz to 100kHz, T
A
= +25°C
f = 120Hz
V
I
= 9V to 19V
I
O
= 1A, T
J
= +25°C
f = 1kHz
V
I
= 35V, T
A
= +25°C
T
J
=+25°C
V
I
= 8V to 25V
V
I
= 9V to 13V
I
O
=5mA to 1.5A
I
O
=250mA to750A
Conditions
MC7806E
Min.
5.75
5.7
-
-
-
-
-
-
-
-
-
59
-
-
-
-
Typ.
6.0
6.0
5
1.5
9
3
5.0
-
-
-0.8
45
75
2
19
250
2.2
Max.
6.25
6.3
120
60
120
60
8.0
0.5
1.3
-
-
-
-
-
-
-
V
mV
mV
mA
mA
mV/°C
µV/Vo
dB
V
mΩ
mA
A
Unit
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift (Note2)
Output Noise Voltage
Ripple Rejection (Note2)
Dropout Voltage
Output Resistance (Note2)
Short Circuit Current
Peak Current (Note2)
Regline
Regload
I
Q
∆I
Q
∆V
O
/∆T
V
N
RR
V
Drop
r
O
I
SC
I
PK
Note:
1. 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 is used.
2. These parameters, although guaranteed, are not 100% tested in production.
3
MC78XXE/LM78XXE/MC78XXAE
Electrical Characteristics (MC7808E)
(Continued)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
=14V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified)
Parameter
Symbol
T
J
=+25°C
Output Voltage
V
O
5.0mA
≤
I
O
≤
1.0A, P
O
≤
15W
V
I
= 10.5V to 23V
T
J
=+25°C
T
J
=+25°C
T
J
=+25°C
I
O
= 5mA to 1.0A
V
I
= 10.5A to 25V
I
O
= 5mA
f = 10Hz to 100kHz, T
A
= +25°C
f = 120Hz, V
I
= 11.5V to 21.5V
I
O
= 1A, T
J
= +25°C
f = 1kHz
V
I
= 35V, T
A
= +25°C
T
J
=+25°C
V
I
= 10.5V to 25V
V
I
= 11.5V to 17V
I
O
= 5.0mA to 1.5A
I
O
= 250mA to 750mA
Conditions
MC7808E
Min.
7.7
7.6
-
-
-
-
-
-
-
-
-
56
-
-
-
-
Typ. Max.
8.0
8.0
5.0
2.0
10
5.0
5.0
0.05
0.5
-0.8
52
73
2
17
230
2.2
8.3
8.4
160
80
160
80
8.0
0.5
1.0
-
-
-
-
-
-
-
V
mV
mV
mA
mA
mV/°C
µV/Vo
dB
V
mΩ
mA
A
Unit
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift (Note2)
Output Noise Voltage
Ripple Rejection (Note2)
Dropout Voltage
Output Resistance (Note2)
Short Circuit Current
Peak Current (Note2)
Regline
Regload
I
Q
∆I
Q
∆V
O
/∆T
V
N
RR
V
Drop
r
O
I
SC
I
PK
Note:
1. 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 is used.
2. These parameters, although guaranteed, are not 100% tested in production.
4
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