參數(shù)資料
型號： L78L05AC
廠商： 意法半導體
元件分類： 基準電壓源/電流源
英文描述： Positive voltage regulators
中文描述： 正電壓穩(wěn)壓器
文件頁數(shù)： 14/29頁
文件大?。?/td> 888K
代理商： L78L05AC
Electrical characteristics
L78LxxAB - L78LxxAC - L78LxxC
14/29
Table 19.
Electrical characteristics of L78L12AB and L78L12AC
(refer to the test circuits,
V
I
= 19 V, I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF, T
J
= 0 to 125°C for L78L12AC,
T
J
= -40 to 125°C for L78L12AB, unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
11.5
12
12.5
V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= 14.5 to 27 V
11.4
12.6
V
I
O
= 1 to 70 mA, V
I
= 19 V
11.4
12.6
Δ
V
O
Line regulation
V
I
= 14.5 to 27 V, T
J
= 25°C
250
mV
V
I
= 16 to 27 V, T
J
= 25°C
200
Δ
V
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25°C
100
mV
I
O
= 1 to 40 mA, T
J
= 25°C
50
I
d
Quiescent current
T
J
= 25°C
6.5
mA
T
J
= 125°C
6
mA
Δ
I
d
Quiescent current change
I
O
= 1 to 40 mA
0.1
mA
V
I
= 16 to 27 V
1.5
eN
Output noise voltage
B =10 Hz to 100 KHz, T
J
= 25°C
80
μV
SVR
Supply voltage rejection
V
I
= 15 to 25 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25°C
37
42
dB
V
d
Dropout voltage
1.7
V
Table 20.
Electrical characteristics of L78L15AB and L78L15AC
(refer to the test circuits,
V
I
= 23 V, I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF, T
J
= 0 to 125°C for L78L15AC,
T
J
= -40 to 125°C for L78L15AB, unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
14.4
15
15.6
V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= 17.5 to 30 V
14.25
15.75
V
I
O
= 1 to 70 mA, V
I
= 23 V
14.25
15.75
Δ
V
O
Line regulation
V
I
= 17.5 to 30 V, T
J
= 25°C
300
mV
V
I
= 20 to 30 V, T
J
= 25°C
250
Δ
V
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25°C
150
mV
I
O
= 1 to 40 mA, T
J
= 25°C
75
I
d
Quiescent current
T
J
= 25°C
6.5
mA
T
J
= 125°C
6
mA
Δ
I
d
Quiescent current change
I
O
= 1 to 40 mA
0.1
mA
V
I
= 20 to 30 V
1.5
eN
Output noise voltage
B =10 Hz to 100 KHz, T
J
= 25°C
90
μV
SVR
Supply voltage rejection
V
I
= 18.5 to 28.5 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25°C
34
39
dB
V
d
Dropout voltage
1.7
V
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