參數(shù)資料
型號: KA7818E
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 基準電壓源/電流源
英文描述: 5.0 AMP POSITIVE VOLTAGE REGULATOR
中文描述: 18 V FIXED POSITIVE REGULATOR, SFM3
封裝: TO-220, 3 PIN
文件頁數(shù): 9/28頁
文件大?。?/td> 227K
代理商: KA7818E
KA78XX/KA78XXA
9
Electrical Characteristics (KA7818)
(Refer to test circuit ,0
°
C < T
J
< 125
°
C, I
O
= 500mA, V
I
=27V, C
I
= 0.33
μ
F, C
O
=0.1
μ
F, unless otherwise specified)
Note:
1. 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
Symbol
Conditions
KA7818
Typ. Max.
18
Unit
Min.
17.3
Output Voltage
V
O
T
J
=+25
o
C
5.0mA
I
O
1.0A, P
O
15W
V
I
= 21V to 33V
18.7
17.1
-
-
-
-
-
-
-
-
-
18
15
5
15
5.0
5.2
-
-
-1
110
18.9
360
180
360
180
8.0
0.5
1
-
-
V
Line Regulation (Note1)
Regline
T
J
=+25
o
C
V
I
= 21V to 33V
V
I
= 24V to 30V
I
O
= 5mA to 1.5A
I
O
= 250mA to 750mA
mV
Load Regulation (Note1)
Regload
T
J
=+25
o
C
mV
Quiescent Current
I
Q
T
J
=+25
o
C
I
O
= 5mA to 1.0A
V
I
= 21V to 33V
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=+25
o
C
f = 120Hz
V
I
= 22V to 32V
I
O
= 1A, T
J
=+25
o
C
f = 1KHz
V
I
= 35V, T
A
=+25
o
C
T
J
=+25
o
C
mA
Quiescent Current Change
I
Q
mA
Output Voltage Drift
Output Noise Voltage
V
O
/
T
V
N
mV/
o
C
μ
V/Vo
Ripple
Rejection
RR
53
69
-
dB
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
V
Drop
r
O
I
SC
I
PK
-
-
-
-
2
-
-
-
-
V
22
250
2.2
m
mA
A
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