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參數(shù)資料
| 型號： | LM2940WG |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)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(hù) |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 410K |
| 代理商： | LM2940WG |
Output Voltage (V
O
)
Parameter
5V
8V
Units
LM2940
Limit
(Note 5)
LM2940/883
Limit
(Note 6)
LM2940
Limit
(Note 5)
LM2940/883
Limit
(Note 6)
Conditions
Typ
Typ
Short Circuit
Current
Maximum Line
(Note 7)
1.9
1.6
1.5/
1.3
1.9
1.6
1.6/
1.3
A
MIN
R
O
= 100Ω
LM2940, T
≤
100 ms
LM2940/883, T
≤
20 ms
LM2940C, T
≤
1 ms
R
O
= 100Ω
LM2940, LM2940/883
LM2940C
R
O
= 100Ω
LM2940, T
≤
100 ms
LM2940/883, T
≤
20 ms
LM2940C, T
≤
1 ms
V
MIN
Transient
75
60/
60
75
60/
60
40/
40
40/
40
55
45
55
45
Reverse Polarity
DC Input Voltage
30
30
15/
15
15
15/
15
30
30
15/
15
15
15/
15
V
MIN
Reverse Polarity
Transient Input
75
50/
50
75
50/
50
V
MIN
Voltage
45/
45
45/
45
55
45/
45
Electrical Characteristics
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 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
)
9V
10V
Units
Parameter
Conditions
Typ
LM2940
Limit
(Note 5)
Typ
LM2940
Limit
(Note 5)
10.5V
≤
V
IN
≤
26V
9.00
11.5V
≤
V
IN
≤
26V
10.00
Output Voltage
5 mA
≤
I
O
≤
1A
8.73/
8.55
9.70/
9.50
V
MIN
V
MAX
mV
MAX
9.27/
9.45
10.30/
10.50
Line Regulation
V
O
+ 2V
≤
V
IN
≤
26V,
I
O
= 5 mA
50 mA
≤
I
O
≤
1A
LM2940
LM2940C
100 mADC and
20 mArms,
f
O
= 120 Hz
V
O
+2V
≤
V
IN
< 26V,
I
O
= 5 mA
LM2940
LM2940C
V
IN
= V
O
+ 5V, I
O
= 1A
10 Hz 100 kHz,
20
90
20
100
Load Regulation
60
60
60
90/
150
90
65
65
100/
165
mV
MAX
m
Ω
Output Impedance
Quiescent
Current
10
10
30
15/
20
15
45/
60
10
30
15/
20
45/
60
mA
MAX
mA
MAX
μ
V
rms
Output Noise
270
300
Voltage
I
O
= 5 mA
f
O
= 120 Hz, 1 V
rms
,
I
O
= 100 mA
LM2940
LM2940C
Ripple Rejection
64
64
34
52/
46
52
63
51/
45
dB
MIN
Long Term
Stability
36
mV/
1000 Hr
www.national.com
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| LM2940WG-12/883 | 制造商:National Semiconductor Corporation 功能描述:LDO Regulator Pos 12V 1A 16-Pin CPAK 制造商:National Semiconductor 功能描述:LDO Regulator Pos 12V 1A 16-Pin CPAK |
| LM2940WG-15/883 | 制造商:National Semiconductor Corporation 功能描述:LDO Regulator Pos 15V 1A 16-Pin CPAK 制造商:National Semiconductor 功能描述:LDO Regulator Pos 15V 1A 16-Pin CPAK |
| LM2940WG5.0/883 | 制造商:National Semiconductor Corporation 功能描述:LDO Regulator Pos 5V 1A 16-Pin CPAK Tray 制造商:Texas Instruments 功能描述:LDO Regulator Pos 5V 1A 16-Pin CPAK Tray 制造商:National Semiconductor 功能描述:LDO Regulator Pos 5V 1A 16-Pin CPAK Tray |
| LM2941 MDE | 制造商:Texas Instruments 功能描述:- Gel-pak, waffle pack, wafer, diced wafer on film |
| LM2941CS | 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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