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): 15/29頁
文件大?。?/td> 888K
代理商: L78L05AC
L78LxxAB - L78LxxAC - L78LxxC
Electrical characteristics
15/29
Table 21.
Electrical characteristics of L78L18AC
(refer to the test circuits,
V
I
= 27 V, I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF, T
J
= 0 to 125°C for L78L18AC,
T
J
= -40 to 125°C for L78L18AB, unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
17.3
18
18.7
V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= 22 to 33 V
17.1
18.9
V
I
O
= 1 to 70 mA, V
I
= 27 V
17.1
18.9
Δ
V
O
Line regulation
V
I
= 22 to 33 V, T
J
= 25°C
320
mV
V
I
= 22 to 33 V, T
J
= 25°C
270
Δ
V
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25°C
170
mV
I
O
= 1 to 40 mA, T
J
= 25°C
85
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
= 23 to 33 V
1.5
eN
Output noise voltage
B =10 Hz to 100 KHz, T
J
= 25°C
120
μV
SVR
Supply voltage rejection
V
I
= 23 to 33 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25°C
33
38
dB
V
d
Dropout voltage
1.7
V
Table 22.
Electrical characteristics of L78L24AB and L78L24AC
(refer to the test circuits,
V
I
= 33 V, I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF, T
J
= 0 to 125°C for L78L24AC,
T
J
= -40 to 125°C for L78L24AB, unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
23
24
25
V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= 27 to 38 V
22.8
25.2
V
I
O
= 1 to 70 mA, V
I
= 33 V
22.8
25.2
Δ
V
O
Line regulation
V
I
= 27 to 38 V, T
J
= 25°C
350
mV
V
I
= 28 to 38 V, T
J
= 25°C
300
Δ
V
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25°C
200
mV
I
O
= 1 to 40 mA, T
J
= 25°C
100
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
= 28 to 38 V
1.5
eN
Output noise voltage
B =10 Hz to 100 KHz, T
J
= 25°C
200
μV
SVR
Supply voltage rejection
V
I
= 29 to 33 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25°C
31
37
dB
V
d
Dropout voltage
1.7
V
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