參數(shù)資料
型號(hào): LM2940CS
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): 3/20頁
文件大小: 410K
代理商: LM2940CS
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM2940S, J, WG, T, MP
100
ms
LM2940CS, T
1 ms
Internal Power Dissipation
(Note 2)
Maximum Junction Temperature
Storage Temperature Range
Soldering Temperature (Note 3)
TO-220 (T), Wave
TO-263 (S)
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
)
LM2940
Parameter
Conditions
Typ
Limit
(Note 5)
6.25V
V
IN
26V
Output Voltage
5 mA
I
O
1A
5.15/
5.25
V
O
+ 2V
V
IN
26V,
20
50
I
O
= 5 mA
Load Regulation
50 mA
I
O
1A
LM2940, LM2940/883
35
50/
80
LM2940C
35
50
Output
100 mADC and
Impedance
20 mArms,
35
f
O
= 120 Hz
Quiescent
V
O
+2V
V
IN
26V,
Current
I
O
= 5 mA
LM2940, LM2940/883
10
15/
20
LM2940C
10
15
V
IN
= V
O
+ 5V,
30
45/
60
I
O
= 1A
Output Noise
10 Hz 100 kHz,
150
Voltage
I
O
= 5 mA
Ripple Rejection
f
O
= 120 Hz, 1 V
rms
,
I
O
= 100 mA
LM2940
72
60/
54
LM2940C
72
60
f
O
= 1 kHz, 1 V
rms
,
I
O
= 5 mA
Long Term
20
Stability
Dropout Voltage
I
O
= 1A
0.5
0.8/
1.0
I
O
= 100 mA
110
150/
200
60V
45V
Internally Limited
150°C
65°C
T
J
+150°C
260°C, 10s
235°C, 30s
SOT-223 (MP)
LLP-8 (LD)
ESD Susceptibility (Note 4)
260°C, 30s
235°C, 30s
2 kV
Operating Conditions
(Note 1)
Input Voltage
Temperature Range
LM2940T, LM2940S
26V
40°C
T
J
125°C
0°C
T
J
125°C
40°C
T
A
85°C
55°C
T
J
125°C
40°C
T
J
125°C
LM2940CT, LM2940CS
LM2940IMP
LM2940J, LM2940WG
LM2940LD
5V
8V
Units
LM2940/883
Limit
(Note 6)
LM2940
Limit
(Note 5)
9.4V
V
IN
26V
7.76/
7.60
LM2940/883
Limit
(Note 6)
Typ
5.00
4.85/
4.75
4.85/
4.75
8.00
7.76/
7.60
V
MIN
V
MAX
mV
MAX
5.15/
5.25
8.24/
8.40
8.24/
8.40
Line Regulation
40/
50
20
80
50/
80
50/
100
1000/
1000
55
55
55
80/
130
80
80/
130
1000/
1000
mV
MAX
m
Ω
15/
20
50/
60
10
30
15/
20
45/
60
15/
20
50/
60
mA
MAX
mA
MAX
μ
V
rms
700/
700
240
1000/
1000
66
66
54/
48
54
dB
MIN
dB
MIN
60/
50
54/
48
32
0.5
mV/
1000 Hr
V
MAX
mV
MAX
0.7/
1.0
150/
200
0.8/
1.0
150/
200
0.7/
1.0
150/
200
110
3
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