參數(shù)資料
型號: MC78M18
廠商: Fairchild Semiconductor Corporation
英文描述: 3-Terminal 0.5A Positive Voltage Regulator(三端0.5A,18V正電壓輸出穩(wěn)壓器)
中文描述: 三端0.5A的正電壓穩(wěn)壓器(三端為0.5A,18V的正電壓輸出穩(wěn)壓器)
文件頁數(shù): 8/16頁
文件大?。?/td> 78K
代理商: MC78M18
MC78MXX/LM78MXX
8
Electrical Characteristics (MC78M20)
(Refer to the test circuits, 0
T
J
+125
°
C, I
O
=350mA, V
I
=29V, unless otherwise specified, C
I
= 0.33
μ
F, C
O
=0.1
μ
F
)
Notes
:
*Load and line regulation are specified at constant, junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter
Symbol
Conditions
Min.
19.2
Typ.
20
Max.
20.8
Unit
Output Voltage
V
O
T
J
= +25
°
C
I
O
= 5 to 350mA
V
I
= 23 to 35V
V
19
20
21
Line Regulation
V
O
I
O
= 200mA
T
J
=+25
°
C
V
I
= 23 to 35V
V
I
= 24 to 35V
-
-
-
-
-
-
-
-
-
-
100
50
400
200
6
0.5
mV
Load Regulation
V
O
I
O
= 5mA to 0.5A, T
J
=+25
°
C
I
O
= 5mA to 200mA, T
J
=+25
°
C
T
J
=+25
°
C
I
O
= 5mA to 350mA
I
O
= 200mA
V
I
= 23 to 35V
I
O
= 5mA
T
J
= 0 to +125
°
C
f = 10Hz to 100KHz
f = 120Hz, I
O
= 300mA
V
I
= 24 to 34V
T
J
=+25
°
C, I
O
= 500mA
T
J
= +25
°
C, V
I
= 35V
T
J
= +25
°
C
mV
Quiescent Current
I
Q
4.2
-
mA
Quiescent Current Change
I
Q
mA
-
-
0.8
Output Voltage Drift
V/
T
-
1.1
-
mV/
°
C
Output Noise Voltage
V
N
-
110
-
μ
V
Ripple Rejection
RR
53
-
-
dB
Dropout Voltage
Short Circuit Current
Peak Current
V
D
I
SC
I
PK
-
-
-
2
-
-
-
V
300
700
mA
mA
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