參數(shù)資料
型號(hào): L7808ACD2T-TR
廠商: 意法半導(dǎo)體
英文描述: Precision 1A regulators
中文描述: 第1A精密穩(wěn)壓器
文件頁數(shù): 6/28頁
文件大?。?/td> 350K
代理商: L7808ACD2T-TR
Electrical characteristics
L7800AB/AC series
6/28
4
Electrical characteristics
Table 3.
Electrical characteristics of L7805A
(V
I
= 10V, I
O
=1A, T
J
= 0 to 150°C (L7805AC),
T
J
= -40 to 125°C (L7805AB), unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
I
O
= 5mA to 1A, P
O
15W
V
I
= 7.5 to 20V
4.9
5
5.1
V
V
O
Output voltage
4.8
5
5.2
V
V
O (1)
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 cycle is used.
Line regulation
V
I
= 7.5 to 25V, I
O
= 500 mA
7
50
mV
V
I
= 8 to 12V
10
50
mV
V
I
= 8 to 12V, T
J
= 25°C
2
25
mV
V
I
= 7.3 to 20V, T
J
= 25°C
7
50
mV
V
O
(*)
Load regulation
I
O
= 5mA to 1A
25
100
mV
I
O
= 5mA to 1.5A, T
J
= 25°C
30
100
V
I
O
= 250 to 750mA
8
50
V
I
q
Quiescent current
T
J
= 25°C
4.3
6
mA
6
mA
I
q
Quiescent current change
V
I
= 8 to 25V, I
O
= 500 mA
0.8
mA
V
I
= 7.5 to 20V, T
J
= 25°C
0.8
mA
I
O
= 5mA to 1A
0.5
mA
SVR
Supply voltage rejection
V
I
= 8 to 18V, f = 120Hz, I
O
= 500mA
68
dB
V
d
Dropout voltage
I
O
= 1A, T
J
= 25°C
2
V
eN
Output noise voltage
T
A
= 25°C, B =10Hz to 100KHz
10
μV/V
O
m
R
O
Output resistance
f =1KHz
17
I
sc
Short circuit current
V
I
= 35V, T
A
= 25°C
0.2
A
I
scp
Short circuit peak current
T
J
= 25°C
2.2
A
V
O
/
T
Output voltage drift
-1.1
mV/°C
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