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參數(shù)資料
| 型號： | NCV7812BT |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| 中文描述： | 12 V FIXED POSITIVE REGULATOR, SFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁數(shù)： | 3/32頁 |
| 文件大小： | 234K |
| 代理商： | NCV7812BT |
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MC7800, MC7800A, NCV7805
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(V
in
= 10 V, I
O
= 500 mA, T
J
= T
low
to T
high
(Note 1), unless otherwise noted)
MC7805B, NCV7805
MC7805C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
V
O
4.8
5.0
5.2
4.8
5.0
5.2
Vdc
Output Voltage (5.0 mA
≤
I
O
≤
1.0 A, P
D
≤
15 W)
7.0 Vdc
≤
V
in
≤
20 Vdc
8.0 Vdc
≤
V
in
≤
20 Vdc
V
O
4.75
5.0
5.25
4.75
5.0
5.25
Vdc
Line Regulation (Note 4)
7.5 Vdc
≤
V
in
≤
20 Vdc, 1.0 A
8.0 Vdc
≤
V
in
≤
12 Vdc
Reg
line
5.0
1.3
100
50
0.5
0.8
20
10
mV
Load Regulation (Note 4)
5.0 mA
≤
I
O
≤
1.0 A
5.0 mA
≤
I
O
≤
1.5 A (T
A
= 25
°
C)
Reg
load
1.3
0.15
100
50
1.3
1.3
25
25
mV
Quiescent Current
I
B
3.2
8.0
3.2
6.5
mA
7.0 Vdc
≤
V
in
≤
25 Vdc
5.0 mA
≤
I
O
≤
1.0 A (T
A
= 25
°
C)
I
B
0.5
0.3
0.08
1.0
0.8
mA
Ripple Rejection
8.0 Vdc
≤
V
in
≤
18 Vdc, f = 120 Hz
RR
68
62
83
dB
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
°
C)
V
I
V
O
2.0
2.0
Vdc
Output Noise Voltage (T
A
= 25
°
C)
10 Hz
≤
f
≤
100 kHz
V
n
10
10
V/V
O
Output Resistance f = 1.0 kHz
r
O
0.9
0.9
m
Short Circuit Current Limit (T
A
= 25
°
C)
V
in
= 35 Vdc
I
SC
0.2
0.6
A
Peak Output Current (T
J
= 25
°
C)
I
max
2.2
2.2
A
Average Temperature Coefficient of Output Voltage
TCV
O
0.3
0.3
mV/
°
C
1. T
low
= 0
°
C for MC78XXAC, C, T
high
= +125
°
C for MC78XXAC, NCV7805
=
40
°
C for MC78XXB, MC78XXAB, NCV7805
2. 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 cycle is used.
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