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參數(shù)資料
| 型號： | MC7818CT |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3-terminal 1A positive voltage regulator |
| 中文描述： | 18 V FIXED POSITIVE REGULATOR, PSFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 174K |
| 代理商： | MC7818CT |
MC78XX/LM78XX
2
Absolute Maximum Ratings
Electrical Characteristics (MC7805/LM7805)
(Refer to test circuit ,0
o
C
< T
J
< 125
o
C
, I
O
= 500mA, V
I
= 10V, C
I
= 0.33
μ
F, C
O
= 0.1
μ
F, unless otherwise specified)
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.
Parameter
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range (MC78XXCT/LM78XXCT/MC78XXCDT)
Storage Temperature Range
Symbol
V
I
V
I
R
θ
JC
R
θ
JA
T
OPR
T
STG
Value
35
40
5
65
0 ~ +125
-65 ~ +150
Unit
V
V
o
C/W
o
C/W
o
C
o
C
Parameter
Symbol
Conditions
MC7805/LM7805
Min.
Typ.
4.8
5.0
Unit
Max.
5.2
Output Voltage
V
O
T
J
=+25
o
C
5.0mA
≤
Io
≤
1.0A, P
O
≤
15W
V
I
= 7V to 20V
V
I
= 8V to 20V
4.75
5.0
5.25
V
Line Regulation
V
O
T
J
=+25
o
C
V
O
= 7V to 25V
V
I
= 8V to 12V
I
O
= 5.0mA to1.5A
I
O
=250mA to
750mA
-
-
-
4.0
1.6
9
100
50
100
mV
Load Regulation
V
O
T
J
=+25
o
C
mV
-
4
50
Quiescent Current
I
Q
T
J
=+25
o
C
I
O
= 5mA to 1.0A
V
I
= 7V to 25V
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=+25
o
C
f = 120Hz
V
O
= 8V to 18V
I
O
= 1A, T
J
=+25
o
C
f = 1KHz
V
I
= 35V, T
A
=+25
o
C
T
J
=+25
o
C
-
-
-
-
-
5.0
0.03
0.3
-0.8
42
8
mA
Quiescent Current Change
I
Q
0.5
1.3
-
-
mA
Output Voltage Drift
Output Noise Voltage
V
O
/
T
V
N
mV/
o
C
μ
V
Ripple
Rejection
RR
62
73
-
dB
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
V
O
R
O
I
SC
I
PK
-
-
-
-
2
-
-
-
-
V
15
230
2.2
m
mA
A
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