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参数资料
| 型号： | LM7812CT |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | Series Voltage Regulators |
| 中文描述： | 12 V FIXED POSITIVE REGULATOR, PSFM3 |
| 封装： | POWER, PLASTIC, TO-220, 3 PIN |
| 文件页数： | 3/8页 |
| 文件大小： | 147K |
| 代理商： | LM7812CT |
Absolute Maximum Ratings
(Note 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
(V
O
= 5V, 12V and 15V)
Internal Power Dissipation (Note 1)
Operating Temperature Range (T
A
)
35V
Internally Limited
0C to +70C
Maximum Junction Temperature
(K Package)
(T Package)
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
TO-3 Package K
TO-220 Package T
150C
150C
65C to +150C
300C
230C
Electrical Characteristics LM78XXC
(Note 2)
0C
≤
T
J
≤
125C unless otherwise noted.
Output Voltage
Input Voltage (unless otherwise noted)
Symbol
Parameter
V
O
Output Voltage
Tj = 25C, 5 mA
≤
I
O
≤
1A
P
D
≤
15W, 5 mA
≤
I
O
≤
1A
V
MIN
≤
V
IN
≤
V
MAX
5V
10V
Typ
5
12V
19V
Typ
12
15V
23V
Typ
15
Units
Conditions
Min
4.8
4.75
(7.5
≤
V
IN
≤
20)
Max
5.2
5.25
Min
11.5
11.4
Max
12.5
12.6 14.25
Min
14.4
Max
15.6
15.75
V
V
V
(14.5
≤
V
IN
≤
27)
4
(17.5
≤
V
IN
≤
30)
4
V
O
Line Regulation
I
O
= 500
mA
Tj = 25C
3
50
120
150
mV
V
IN
(7
≤
V
IN
≤
25)
14.5
≤
V
IN
≤
30)
(17.5
≤
V
IN
≤
30)
V
0C
≤
Tj
≤
+125C
V
IN
50
120
150
mV
V
(8
≤
V
IN
≤
20)
(15
≤
V
IN
≤
27)
(18.5
≤
V
IN
≤
30)
I
O
≤
1A
Tj = 25C
V
IN
50
120
150
mV
V
(7.5
≤
V
IN
≤
20)
(14.6
≤
V
IN
≤
27)
(17.7
≤
V
IN
≤
30)
0C
≤
Tj
≤
+125C
V
IN
5 mA
≤
I
O
≤
1.5A
250 mA
≤
I
O
≤
750 mA
25
60
75
mV
V
mV
mV
(8
≤
V
IN
≤
12)
10
(16
≤
V
IN
≤
22)
12
(20
≤
V
IN
≤
26)
12
V
O
Load Regulation
Tj = 25C
50
25
120
60
150
75
5 mA
≤
I
O
≤
1A, 0C
≤
Tj
≤
+125C
I
O
≤
1A
50
120
150
mV
I
Q
Quiescent Current
Tj = 25C
0C
≤
Tj
≤
+125C
8
8
8
mA
mA
mA
mA
V
8.5
0.5
1.0
8.5
0.5
1.0
8.5
0.5
1.0
I
Q
Quiescent Current
Change
5 mA
≤
I
O
≤
1A
Tj = 25C, I
O
≤
1A
V
MIN
≤
V
IN
≤
V
MAX
(7.5
≤
V
IN
≤
20)
(14.8
≤
V
IN
≤
27)
(17.9
≤
V
IN
≤
30)
I
O
≤
500 mA, 0C
≤
Tj
≤
+125C
V
MIN
≤
V
IN
≤
V
MAX
1.0
1.0
1.0
mA
V
(7
≤
V
IN
≤
25)
(14.5
≤
V
IN
≤
30)
(17.5
≤
V
IN
≤
30)
90
V
N
Output Noise
Voltage
Ripple Rejection
T
A
=25C, 10 Hz
≤
f
≤
100 kHz
40
75
μV
I
O
≤
1A, Tj = 25C
or
I
O
≤
500 mA
0C
≤
Tj
≤
+125C
62
80
55
72
54
70
dB
f = 120 Hz
62
55
54
dB
V
MIN
≤
V
IN
≤
V
MAX
(8
≤
V
IN
≤
18)
(15
≤
V
IN
≤
25)
(18.5
≤
V
IN
≤
28.5)
2.0
19
V
R
O
Dropout Voltage
Output Resistance
Tj = 25C, I
OUT
= 1A
f = 1 kHz
2.0
8
2.0
18
V
m
L
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM7812CT | 制造商:Fairchild Semiconductor Corporation 功能描述:V REG 14.5V TO 35V TO-220 制造商:Fairchild Semiconductor Corporation 功能描述:V REG, 14.5V TO 35V, TO-220 |
| LM7812CT/NOPB | 功能描述:线性稳压器 - 标准 RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| LM7812CT_12 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:3-Terminal 1A Positive Voltage Regulator |
| LM7812D-XX-AR | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:1A Positive Voltage Regulator |
| LM7812D-XX-BL | 制造商:TAITRON 制造商全称:TAITRON Components Incorporated 功能描述:1A Positive Voltage Regulator |
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