www.fairchildsemi.com
MC78LXXA/LM78LXXA/MC78L05AA
3-Terminal 0.1A Positive Voltage Regulator
Features
•
•
•
•
•
Maximum Output Current of 100mA
Output Voltage of 5V, 6V, 8V, 12V, 15V, 18V and 24V
Thermal Overload Protection
Short Circuit Current Limiting
Output Voltage Offered in ±5% Tolerance
Description
The MC78LXXA/LM78LXXA/MC78L05AA series of
fixed voltage monolithic integrated circuit voltage
regulators are suitable for application that required supply
current up to 100mA.
TO-92
SOT-89
GND
1
1 23
2 3
1. Output 2. GND 3. Input
8-SOP
8
1
1. Output 2. GND 3. GND 4. NC
5. NC 6. GND 7. GND 8. Input
Internal Block Diagram
Inpu
V
I
t
3
I
THERMAL SHUTDOWN
CIRCUIT
REFERENCE VOLTAGE
+
-
SHORT CIRCUIT
PROTECTION
R
SC
GND
2
V
0
Outpu
t
1
Rev. 1.0.7
©2012 Fairchild Semiconductor Corporation
MC78LXXA/LM78LXXA/MC78L05AA
Absolute Maximum Ratings
Parameter
Input Voltage (for V
O
= 5V to 8V)
(for V
O
= 12V to 18V)
(for V
O
= 24V)
Operating Junction Temperature Range
Storage Temperature Range
Thermal Resistance Junction-Case
TO-92
Thermal Resistance Junction-Air
TO-92
SOT-89
8-SOP
Symbol
V
I
T
J
T
STG
R
θJC
R
θJA
Value
30
35
40
0 ~ +150
-65 ~ +150
50
150
225
160
Unit
V
V
V
°C
°C
°C/W
°C/W
°C/W
°C/W
Electrical Characteristics(MC78L05A/LM78L05A)
(V
I
= 10V, I
O
= 40mA, 0°C
≤
T
J
≤
125°C, C
I
= 0.33μF, C
O
= 0.1μF, unless otherwise specified. (Note 1)
Parameter
Output Voltage
Line Regulation (Note1)
Symbol
V
O
ΔV
O
ΔV
O
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
7V
≤
V
I
≤
20V
Output Voltage
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Temperature Coefficient of V
O
Ripple Rejection
Dropout Voltage
With Line
With Load
V
O
I
Q
ΔI
Q
ΔI
Q
V
N
ΔV
O
/ΔT
RR
V
D
7V
≤
V
I
≤
20V
8V
≤
V
I
≤
20V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
1mA
≤
I
O
≤
40mA
Conditions
Min.
4.8
-
-
-
-
-
4.75
-
-
-
-
-
41
-
Typ.
5.0
8
6
11
5.0
-
-
2.0
-
-
40
-0.65
80
1.7
Max.
5.2
150
100
60
30
5.25
5.25
5.5
1.5
0.1
-
-
-
-
Unit
V
mV
mV
mV
mV
V
V
mA
mA
mA
μV/Vo
mV/°C
dB
V
Load Regulation (Note1)
7V
≤
V
I
≤
V
MAX
1mA
≤
I
O
≤
70mA
(Note2)
T
J
= 25°C
8V
≤V
I
≤
20V
1mA
≤
I
O
≤
40 mA
T
A
= 25°C, 10Hz
≤
f
≤
100kHz
I
O
= 5mA
f = 120Hz, 8V
≤
V
I
≤
18V, T
J
= 25°C
T
J
= 25°C
Note:
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.
2. Power dissipation P
D
≤
0.75W.
2
MC78LXXA/LM78LXXA/MC78L05AA
Electrical Characteristics(MC78L06A)
(Continued)
(V
I
= 12V, I
O
= 40mA, 0°C
≤
T
J
≤
125°C, C
I
= 0.33μF, C
O
= 0.1μF, unless otherwise specified. (Note 1)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Output Voltage
Quiescent Current
Quiescent Current
Change
With Line
With Load
Symbol
V
O
ΔV
O
ΔV
O
V
O
I
Q
ΔI
Q
ΔI
Q
V
N
ΔV
O
/ΔT
RR
V
D
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
8.5V
≤
V
I
≤
20V
9V
≤
V
I
≤
20V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
70mA
Conditions
Min.
5.75
-
-
-
-
5.7
5.7
-
-
-
-
-
-
40
-
Typ. Max.
6.0
64
54
12.8
5.8
-
-
-
3.9
-
-
40
0.75
46
1.7
6.25
175
125
80
40
6.3
6.3
5.5
6.0
1.5
0.1
-
-
-
-
Unit
V
mV
mV
mV
mV
V
V
mA
mA
mA
mA
μV/Vo
mV/°C
dB
V
8.5
≤
V
I
≤
20V, 1mA
≤
I
O
≤
40mA
8.5
≤
V
I
≤
V
MAX
(Note), 1mA
≤
I
O
≤
70mA
T
J
= 25°C
T
J
= 125°C
9
≤
V
I
≤
20V
1mA
≤
I
O
≤
40mA
T
A
= 25°C, 10Hz
≤
f
≤
100kHz
I
O
= 5mA
f = 120Hz, 10V
≤
V
I
≤
20V, T
J
= 25°C
T
J
= 25°C
Output Noise Voltage
Temperature Coefficient of V
O
Ripple Rejection
Dropout Voltage
Note:
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.
2.
Power dissipation P
D
≤
0.75W.
3
MC78LXXA/LM78LXXA/MC78L05AA
Electrical Characteristics(MC78L08A)
(Continued)
(V
I
= 14V, I
O
= 40mA, 0°C
≤
T
J
≤
125°C, C
I
= 0.33μF, C
O
= 0.1μF, unless otherwise specified. (Note 1)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Symbol
V
O
ΔV
O
ΔV
O
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
10.5V
≤
V
I
≤
23V
11V
≤
V
I
≤
23V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
10.5V
≤
V
I
≤
23V 1mA
≤
I
O
≤
40mA
Output Voltage
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Temperature Coefficient of V
O
Ripple Rejection
Dropout Voltage
With Line
With Load
V
O
I
Q
ΔI
Q
ΔI
Q
V
N
ΔV
O
/ΔT
RR
V
D
10.5V
≤
V
I
≤
V
MAX
(Note2)
T
J
= 25°C
11V
≤
V
I
≤
23V
1mA
≤
I
O
≤
40mA
T
A
= 25°C, 10Hz
≤
f
≤100kHz
I
O
= 5mA
f = 120Hz, 11V
≤
V
I
≤
21V, T
J
= 25°C
T
J
= 25°C
1mA
≤
I
O
≤
70mA
Conditions
Min.
7.7
-
-
-
-
7.6
7.6
-
-
-
-
-
39
-
Typ. Max.
8.0
10
8
15
8.0
-
-
2.0
-
-
60
-0.8
70
1.7
8.3
175
125
80
40
8.4
8.4
5.5
1.5
0.1
-
-
-
-
Unit
V
mV
mV
mV
mV
V
V
mA
mA
mA
μV/Vo
mV/°C
dB
V
Note:
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.
2. Power dissipation P
D
≤
0.75W.
4
MC78LXXA/LM78LXXA/MC78L05AA
Electrical Characteristics(MC78L12A/LM78L12A)
(Continued)
(V
I
= 19V, I
O
= 40mA, 0°C
≤
T
J
≤
125°C, C
I
= 0.33
μF,
C
O
= 0.1μF, unless otherwise specified. (Note1))
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Symbol
V
O
ΔV
O
ΔV
O
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
14.5V
≤
V
I
≤
27V
16V
≤
V
I
≤
27V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
Conditions
Min.
11.5
-
-
-
-
11.4
11.4
-
-
-
-
-
37
-
Typ.
12
20
15
20
10
-
-
2.1
-
-
80
-1.0
65
1.7
Max.
12.5
250
200
100
50
12.6
12.6
6.0
1.5
0.1
-
-
-
-
Unit
V
mV
mV
mV
mV
V
V
mA
mA
mA
μV/Vo
mV/°C
dB
V
14.5V
≤
V
I
≤
27V 1mA
≤
I
O
≤
40mA
Output Voltage
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Temperature Coefficient of V
O
Ripple Rejection
Dropout Voltage
With Line
With Load
V
O
I
Q
ΔI
Q
ΔI
Q
V
N
ΔV
O
/ΔT
RR
V
D
14.5V
≤
V
I
≤
V
MAX
(Note2)
T
J
= 25°C
16V
≤
V
I
≤
27V
1mA
≤
I
O
≤
40mA
T
A
= 25°C, 10Hz
≤
f
≤
100kHz
I
O
= 5mA
f = 120Hz, 15V
≤
V
I
≤
25V, T
J
= 25°C
T
J
= 25°C
1mA
≤
I
O
≤
70mA
Note:
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.
2. Power dissipation P
D
≤
0.75W.
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
