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參數(shù)資料
| 型號： | LM2940CSX-15 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| 中文描述： | 三端固定電壓調節(jié)器 |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 409K |
| 代理商： | LM2940CSX-15 |
Electrical Characteristics
(Continued)
V
= V
+ 5V, I
= 1A, C
= 22 μF, unless otherwise specified.
Boldface limits apply over the entire operating tempera-
ture range of the indicated device.
All other specifications apply for T
A
= T
J
= 25C.
Output Voltage (V
O
)
9V
10V
Units
Parameter
Conditions
Typ
LM2940
Limit
(Note 4)
1.6
Typ
LM2940
Limit
(Note 4)
1.6
Short Circuit
Current
Maximum Line
Transient
(Note 6)
1.9
1.9
A
MIN
R
O
= 100
T
≤
100 ms
LM2940
LM2940C
R
O
= 100
LM2940
LM2940C
R
O
= 100
T
≤
100 ms
LM2940
LM2940C
75
55
60/
60
45
75
60/
60
V
MIN
Reverse Polarity
DC Input Voltage
30
30
15/
15
15
30
15/
15
V
MIN
Reverse Polarity
Transient Input
Voltage
75
55
50/
50
45/
45
75
50/
50
V
MIN
Electrical Characteristics
V
= V
+ 5V, I
= 1A, C
= 22 μF, unless otherwise specified.
Boldface limits apply over the entire operating tempera-
ture range of the indicated device.
All other specifications apply for T
A
= T
J
= 25C.
Output Voltage (V
O
)
12V
LM2940
Parameter
Conditions
Typ
Limit
(Note 4)
13.6V
≤
V
IN
≤
26V
Output Voltage
5 mA
≤
I
O
≤
1A
12.00
11.64/
11.40
12.36/
12.60
Line Regulation
V
O
+ 2V
≤
V
IN
≤
26V,
20
120
I
O
= 5 mA
Load Regulation
50 mA
≤
I
O
≤
1A
LM2940, LM2940/883
55
120/
200
LM2940C
55
120
Output
100 mADC and
Impedance
20 mArms,
80
f
O
= 120 Hz
Quiescent
Current
I
O
= 5 mA
LM2940, LM2940/883
10
15/
20
LM2940C
10
15
V
IN
= V
O
+ 5V, I
O
= 1A
30
45/
60
Output Noise
10 Hz 100 kHz,
360
Voltage
I
O
= 5 mA
Ripple Rejection
f
O
= 120 Hz, 1 V
rms
,
I
O
= 100 mA
LM2940
66
54/
48
LM2940C
66
54
f
O
= 1 kHz, 1 V
rms
,
I
O
= 5 mA
15V
Units
LM2940/833
Limit
(Note 5)
LM2940
Limit
(Note 4)
16.75V
≤
V
IN
≤
26V
14.55/
14.25
15.45/
15.75
150
LM2940/833
Limit
(Note 5)
Typ
11.64/
11.40
12.36/
12.60
75/
120
15.00
14.55/
14.25
15.45/
15.75
95/
150
V
MIN
V
MAX
mV
MAX
20
120/
190
150/
240
mV
MAX
70
150
1000/
1000
100
1000/
1000
m
V
O
+2V
≤
V
IN
≤
26V,
15/
20
15/
20
mA
MAX
10
30
450
15
50/
60
1000/
1000
45/
60
50/
60
1000/
1000
mA
MAX
μV
rms
dB
MIN
64
52
52/
46
48/
42
dB
MIN
L
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2940CSX-15/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM2940CSX-5.0 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM2940CSX-5.0/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 1A LDO REG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM2940CSX-5.0/NOPB | 制造商:Texas Instruments 功能描述:Linear Voltage Regulator IC |
| LM2940CSX50 | 制造商:Texas Instruments 功能描述:* |
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