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參數(shù)資料
| 型號： | LM2940CT |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 410K |
| 代理商： | LM2940CT |
Output Voltage (V
O
)
9V
10V
Units
Parameter
Conditions
Typ
LM2940
Limit
(Note 5)
0.8/
1.0
150/
200
Typ
LM2940
Limit
(Note 5)
0.8/
1.0
150/
200
Dropout Voltage
I
O
= 1A
I
O
= 100 mA
(Note 7)
0.5
0.5
V
MAX
mV
MAX
A
MIN
110
110
Short Circuit
Current
Maximum Line
1.9
1.6
1.9
1.6
R
O
= 100Ω
T
≤
100 ms
LM2940
LM2940C
R
O
= 100Ω
LM2940
LM2940C
R
O
= 100Ω
T
≤
100 ms
LM2940
LM2940C
Transient
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 μ
F, unless otherwise specified.
Boldface limits apply over the entire operating temperature
range of the indicated device.
All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
)
12V
LM2940
Parameter
Conditions
Typ
Limit
(Note 5)
13.6V
≤
V
IN
≤
26V
Output Voltage
5 mA
≤
I
O
≤
1A
12.36/
12.60
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
15V
Units
LM2940/833
Limit
(Note 6)
LM2940
Limit
(Note 5)
16.75V
≤
V
IN
≤
26V
14.55/
14.25
LM2940/833
Limit
(Note 6)
Typ
12.00
11.64/
11.40
11.64/
11.40
15.00
14.55/
14.25
V
MIN
V
MAX
mV
MAX
12.36/
12.60
15.45/
15.75
15.45/
15.75
Line Regulation
75/
120
20
150
95/
150
120/
190
1000/
1000
150/
240
1000/
1000
mV
MAX
m
Ω
70
100
150
V
O
+2V
≤
V
IN
≤
26V,
15/
20
15/
20
mA
MAX
10
30
15
50/
60
45/
60
50/
60
mA
MAX
μ
V
rms
1000/
1000
450
1000/
1000
5
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2940CT-12 | 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(diào)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 |
| LM2940CT-12 | 制造商:Texas Instruments 功能描述:IC V REG LDO +12V 2940 TO-220-3 |
| LM2940CT-12/LB01 | 制造商:Texas Instruments 功能描述:LDO Regulator Pos 12V 1A 3-Pin(3+Tab) TO-220 Rail |
| LM2940CT-12/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(diào)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 |
| LM2940CT-12P+ | 制造商:Texas Instruments 功能描述:Voltage Regulator, +12V, Bi-Polar, 3 Pin, Plastic, SIP |
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