參數(shù)資料
型號(hào): AS2940U-X
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 1A Low Dropout Voltage Regulators
中文描述: 1A低壓降穩(wěn)壓器
文件頁(yè)數(shù): 6/8頁(yè)
文件大?。?/td> 132K
代理商: AS2940U-X
Rev. 10/11/00
AS2940
ELECTRICAL CHARACTERISTICS
V
IN
= V
O
+ 5V, I
O
=1A, C
O
= 22
μ
F, unless otherwise specified.
20
10
0
-10
-20
-30
0V
-10
0
10
20
30
40
TIME (
μ
s)
I
Quiescent Current
30
50
60
3V
~
~
~
~
O
~
~
~
~
-10
0
10
20
30
40
TIME (
μ
s)
0
0.5
1.0
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
Load Transient Response
L
O
V
IN
= 10V
C
= 22
μ
F
T
J
= 25 °C
V
O
= 5V
FREQUENCY (Hz)
1
10
100
1k
10k
100k
1M
Ripple Rejection
R
V
IN
= 10V
C
OUT
= 22
μ
F
T
J
= 10 mA
V
O
= 5V
FREQUENCY (Hz)
1
10
100
1k
10k
100k
1M
Output Impedance
O
)
V
IN
= 10V
C
OUT
= 22
μ
F
T
J
= 50 mA
V
O
= 5V
10.00
5.00
2.00
1.00
0.50
0.20
0.10
0.05
0.02
0.01
95
85
75
65
55
45
35
AMBIENT TEMPERATURE ( °C)
Maximum Power Dissipation (TO-220)
P
AMBIENT TEMPERATURE ( °C/W)
Maximum Power Dissipation (TO-3)
P
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
60
50
80
70
90
40
100
22
20
18
16
14
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
16
18
20
22
INFINITE HEAT SINK
10 °C/W HEAT SINK
NO HEAT SINK
NO HEAT SINK
10 °C/W HEAT SINK
INFINITE HEAT SINK
AMBIENT TEMPERATURE ( °C)
Maximum Power Dissipation (TO-263) (See Note 3)
P
0
10
20
30
40
50
60
70
80
90
100
0
1
2
3
4
Θ
JA
= 73 °C/W
Θ
JA
= 50 °C/W
Θ
JA
= 37 °C/W
Θ
JA
= 32 °C/W
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