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參數(shù)資料
| 型號(hào)： | MC78T12CT |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)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(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 44K |
| 代理商： | MC78T12CT |
MC78TXX
3
Electrical Characteristics(MC78T12)
(Continued)
(V
I
= 19V, I
O
= 3.0 A, 0
°
C
≤
T
J
≤
+125
°
C, Po
≤
P
MAX
(Note1), unless otherwise specified. )
Note:
1. Although power dissipation is internally limited, specifications apply only for P
O
≤
Pmax, Pmax = 25W
2. Load and line regulation are specified at constant junction temperature. Change in Vo due heating effects must be taken into
account separately. Pulse testing with low duty is used. ( P
MAX
= 25W)
Parameter
Symbol
Conditions
Min.
11.5
11.4
Typ.
12
12
Max.
12.5
12.8
Unit
Output Voltage
Vo
5mA
≤
Io
≤
3.0A , T
J
=+25
°
C
14.5V
≤
VI
≤
27V, 5mA
≤
Io
≤
2.0A
14.5V
≤
VI
≤
35V, Io=5mA, T
J
=+25
°
C
14.5V
≤
VI
≤
35V, Io=1.0A, T
J
=+25
°
C
14.9V
≤
VI
≤
28V, Io =2.0A, T
J
=+25
°
C
16V
≤
VI
≤
22V, Io =3.0A, T
J
=+25
°
C
5mA
≤
Io
≤
3.0A, T
J
=+25
°
C
5mA
≤
Io
≤
3.0A
Pulse =10ms, P = 20W
TA = +25
°
C
5mA
≤
Io
≤
3.0A, T
J
=+25
°
C
5mA
≤
Io
≤
3.0A
14.5V
≤
VI
≤
35V, Io = 5mA
T
J
=+25
°
C ;
14.9V
≤
VI
≤
27V, Io =2.0A ;
5mA
≤
Io
≤
3.0A, T
J
=+25
°
C
f = 120Hz, 15V
≤
V
I
≤
25V, Io
=
2.0A
T
J
=+25
°
C
Io = 3A,T
J
=+25
°
C
T
A
=+25
°
C, 10Hz
≤
f
≤
100kHz
T
A
=+25
°
C
f = 1.0kHz
VI = 35V, T
J
=+25
°
C
V
Line Regulation (Note2)
V
O
-
6.0
45
mV
Load Regulation (Note2)
V
O
-
10
15
30
80
mV
mV
Thermal Regulation
REG
T
-
0.002
0.03
%Vo/W
Quiescent Current
I
Q
-
3.5
4.0
5.0
6.0
mA
mA
Quiescent Current Change
I
Q
-
0.1
0.8
mA
Ripple Rejection
RR
-
67
-
dB
Dropout Voltage
Output Noise Voltage
Peak Output Current
Output Resistance
Short Circuit Current Limit
Average Temperature
Coefficient of Output Voltage
V
O
/
T
V
D
V
N
I
PK
Ro
Isc
-
-
-
-
-
2.2
10
5.0
2.0
1.5
2.5
-
-
-
2.5
V
μ
V/Vo
A
m
A
Io = 5.0mA
-
0.5
-
mV/
°
C
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|---|---|
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