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參數(shù)資料
| 型號： | LM2984 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Microprocessor Power Supply System |
| 中文描述： | 微機(jī)電源系統(tǒng) |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 398K |
| 代理商： | LM2984 |
Absolute Maximum Ratings
(Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
Survival Voltage (
<
100 ms)
Operational Voltage
Internal Power Dissipation
60V
26V
Internally Limited
Operating Temperature Range (T
A
)
Maximum Junction Temperature
(Note 3)
Storage Temperature Range
Lead Temperature
(Soldering, 10 sec.)
ESD Susceptability (Note 5)
40C to +125C
150C
65C to +150C
230C
2000V
Electrical Characteristics
V
= 14V, I
= 5 mA, C
OUT
= 10 μF, unless otherwise indicated.
Boldface
type refers to limits over the entire operating
temperature range, 40C
≤
A
≤
+125C, all other limits are for T
A
= T
j
= 25C (Note 8) .
Parameter
Conditions
Typical
Limit
(Note 4)
Units
V
OUT
(Pin 11)
Output Voltage
5 mA
≤
I
O
≤
500 mA
6V
≤
V
IN
≤
26V
9V
≤
V
IN
≤
16V
7V
≤
V
IN
≤
26V
5 mA
≤
I
OUT
≤
500 mA
250 mA
dc
and 10 mA
rms
,
f
o
= 120 Hz
I
OUT
= 500 mA
I
OUT
= 250 mA
10 Hz–100 kHz, I
OUT
= 100 mA
5.00
4.85/
4.75
5.15/
5.25
25/
25
50/
50
50/
50
V
min
V
max
mV
max
mV
max
mV
max
m
Line Regulation
2
5
Load Regulation
Output Impedance
12
24
Quiescent Current
38
14
100
20
70
0.53
0.28
0.92
32
100/
100
50/
50
mA
max
mA
max
μV
mV/1000 hr
dB
min
V
max
V
max
A
min
V
min
Output Noise Voltage
Long Term Stability
Ripple Rejection
Dropout Voltage
f
o
= 120 Hz
I
OUT
= 500 mA
I
OUT
= 250 mA
60/
50
0.80/
1.1
0.50/
0.70
0.75/
0.60
26/
26
Current Limit
Maximum Operational
Input Voltage
Maximum Line Transient
Reverse Polarity
Input Voltage DC
Reverse Polarity Input
Voltage Transient
Continuous DC
V
OUT
≤
6V, R
OUT
= 100
, T
≤
100 ms
V
OUT
≥
0.6V, R
OUT
= 100
65
30
60/
60
15/
15
V
min
V
min
T
≤
100 ms, R
OUT
= 100
55
35/
35
V
min
Electrical Characteristics
V
= 14V, I
= 5 mA, C
buf
= 10 μF, unless otherwise indicated.
Boldface
type refers to limits over the entire operating tem-
perature range, 40C
≤
T
A
≤
+125C, all other limits are for T
A
= T
j
= 25C (Note 8) .
Parameter
Conditions
Typical
Limit
(Note 4)
Units
V
buffer
(Pin 10)
Output Voltage
5 mA
≤
I
O
≤
100 mA
6V
≤
V
IN
≤
26V
9V
≤
V
IN
≤
16V
7V
≤
V
IN
≤
26V
5 mA
≤
I
buf
≤
100 mA
50 mA
dc
and 10 mA
rms
,
f
O
= 120 Hz
I
buf
= 100 mA
5.00
4.85/
4.75
5.15/
5.25
25/
25
50/
50
50/
50
V
min
V
max
mV
max
mV
max
mV
max
m
Line Regulation
2
5
15
200
Load Regulation
Output Impedance
Quiescent Current
8.0
15/
15
mA
max
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