參數資料
型號: KA7812
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: 12 V FIXED POSITIVE REGULATOR, PSFM3
封裝: TO-220, 3 PIN
文件頁數: 2/28頁
文件大小: 227K
代理商: KA7812
KA78XX/KA78XXA
2
Absolute Maximum Ratings
Electrical Characteristics (KA7805/KA7805R)
(Refer to test circuit ,0
°
C < T
J
< 125
°
C, I
O
= 500mA, V
I
=10V, 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
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
Thermal Resistance Junction-Cases (TO-220)
Thermal Resistance Junction-Air (TO-220)
Operating Temperature Range (KA78XX/A/R)
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
°
C/W
°
C/W
°
C
°
C
Parameter
Symbol
Conditions
KA7805
Typ.
5.0
Unit
Min.
4.8
Max.
5.2
Output Voltage
V
O
T
J
=+25
o
C
Io
1.0A, P
O
15W
V
I
= 7V to 20V
4.75
-
-
-
-
-
-
-
-
-
5.0
4.0
1.6
9
4
5.0
0.03
0.3
-0.8
42
5.25
100
50
100
50
8.0
0.5
1.3
-
-
V
Line Regulation (Note1)
Regline
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
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
= 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
mA
Quiescent Current Change
I
Q
mA
Output Voltage Drift
Output Noise Voltage
V
O
/
T
V
N
mV/
o
C
μ
V/V
O
Ripple
Rejection
RR
62
73
-
dB
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
V
Drop
r
O
I
SC
I
PK
-
-
-
-
2
-
-
-
-
V
15
230
2.2
m
mA
A
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