LM7912C National Semiconductor, LM7912C Datasheet - Page 2

• Manufacturer Part Number: LM7912C
• Description: LM79XX Series 3-Terminal Negative Regulators
• Manufacturer: National Semiconductor

Symbol
V
I
V
I
Absolute Maximum Ratings
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Input Voltage
Electrical Characteristics
0 C
Typical Applications
Q
OMAX
Improves transient response and ripple rejection Do not increase beyond 50 F
V
Select R2 as follows
O
n
V
V
I
Q
(V
(V
OUT
LM7905CT
LM7912CT
LM7915CT
O
O
s
o
o
e
e b
e b
T
V
J s
SET
5V)
12V and
a
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Peak Output Current
Average Temperature
Coefficient of
Output Voltage
Input Voltage (unless otherwise specified)
R1
300
750
1k
125 C Power Dissipation
R2
a
Parameter
R2
b
15V)
Output Voltage
Part Number
(Continued)
T
5 mA
P
T
T
5 mA
250 mA
T
With Line
With Load 5 mA
T
f
T
T
I
0 C
OUT
s
J
J
J
J
A
e
J
J
s
e
e
e
e
e
e
Conditions unless otherwise noted I
e
1 5W
s
120 Hz
15W
e
25 C
s
25 C (Note 3)
25 C (Note 3)
s
25 C
25 C I
25 C
25 C 10 Hz
(Note 1)
T
J s
5 mA
I
I
s
OUT s
OUT s
Conditions
I
OUT s
100 C
OUT
b
b
Variable Output
25V
35V
1A
1 5A
s
e
s
750 mA
I
1A
OUT s
f
s
2
100 Hz
Input-Output Differential
Power Dissipation (Note 2)
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec )
1A
(V
(V
o
o
e b
e b
5V)
12V and
b
b
OUT
Min
54
4 75
4 8
e
(
(
(
(
(
b
b
b
b
b
b
500 mA C
15V)
20
25
12
25
18
LM7905C
s
s
s
s
s
b
b
b
Typ
125
1 1
2 2
0 4
15
66
V
V
V
V
V
10V
TL H 7340 – 2
8
2
5
1
5 0
5V
IN s
IN s
IN s
IN s
IN s
IN
e
b
b
b
b
b
2 2 F C
7)
7)
8)
7)
8)
b
b
b
Max
100
0 5
0 5
50
15
50
5 25
Internally Limited
2
5 2
65 C to
0 C to
OUT
e
a
a
mV C
125 C
150 C
230 C
Units
1 F
mV
mV
mV
mV
mA
mA
mA
dB
25V
30V
V
V
V
V
V
V
V
V
A
V