參數(shù)資料
型號(hào): 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): 4/32頁
文件大?。?/td> 234K
代理商: NCV7812BT
MC7800, MC7800A, NCV7805
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(V
in
= 10 V, I
O
= 1.0 A, T
J
= T
low
to T
high
(Note 3), unless otherwise noted)
MC7805AB/MC7805AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
V
O
4.9
5.0
5.1
Vdc
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
7.5 Vdc
V
in
20 Vdc
V
O
4.8
5.0
5.2
Vdc
Line Regulation (Note 4)
Reg
line
mV
7.5 Vdc
V
in
25 Vdc, I
O
= 500 mA
0.5
10
8.0 Vdc
V
in
12 Vdc, I
O
= 1.0 A
0.8
12
8.0 Vdc
V
in
12 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
1.3
4.0
7.3 Vdc
V
in
20 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
4.5
10
Load Regulation (Note 4)
Reg
load
mV
5.0 mA
I
O
1.5 A, T
J
= 25
°
C
1.3
25
5.0 mA
I
O
1.0 A
0.8
25
250 mA
I
O
750 mA
0.53
15
Quiescent Current
I
B
3.2
6.0
mA
Quiescent Current Change
I
B
mA
8.0 Vdc
V
in
25 Vdc, I
O
= 500 mA
0.3
0.8
7.5 Vdc
V
in
20 Vdc, T
J
= 25
°
C
0.8
5.0 mA
I
O
1.0 A
0.08
0.5
Ripple Rejection
8.0 Vdc
V
in
18 Vdc, f = 120 Hz, I
O
= 500 mA
RR
68
83
dB
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
°
C)
V
I
V
O
2.0
Vdc
Output Noise Voltage (T
A
= 25
°
C)
10 Hz
f
100 kHz
V
n
10
V/V
O
Output Resistance (f = 1.0 kHz)
r
O
0.9
m
Short Circuit Current Limit (T
A
= 25
°
C)
V
in
= 35 Vdc
I
SC
0.2
A
Peak Output Current (T
J
= 25
°
C)
I
max
2.2
A
Average Temperature Coefficient of Output Voltage
TCV
O
0.3
mV/
°
C
3. T
low
= 0
°
C for MC78XXAC, C
=
40
°
C for MC78XXB, MC78XXAB, NCV7805
4. 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.
T
= +125
°
C for MC78XXAC, C, NCV7805
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