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參數(shù)資料
| 型號(hào)： | LM250 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | ADJUSTABLE VOLTAGE REGULATORS THREE-TERMINAL 3 A |
| 中文描述： | 電壓調(diào)節(jié)器可調(diào)三端3甲 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 103K |
| 代理商： | LM250 |
ELECTRICAL CHARACTERISTICS
LM150:
-55
o
C
≤
T
j
≤
150
o
C, V
I
- V
O
= 5V, I
O
= 1.5A
LM250:
-25
o
C
≤
T
j
≤
150
o
C, V
I
- V
O
= 5V, I
O
= 1.5A
LM350:
0
o
C
≤
T
j
≤
150
o
C, V
I
- V
O
= 5V, I
O
= 1.5A
Although power dissipation is internally limited, these specifications apply to power dissipation up to
30W (unless otherwise specified).
Symbol
Parameter
LM150-LM250
Min.
Typ.
0.005
LM350
Typ.
0.005
Unit
Max.
0.01
Min.
Max.
0.03
K
VI
Line Regulation - (note 1)
T
amb
= 25
o
C, 3 V
≤
(V
I
- V
O
)
≤
35 V
Load Regulation T
amb
= 25
o
C, 10 mA
≤
I
O
≤
3 A
V
O
≤
5V - (note 1)
V
O
≥
5V - (note 1)
Thermal Regulation (pulse = 20 ms)
Adjustment Pin Current
Adjustment Pin Current Change
10 mA
≤
I
L
≤
3 A, 3 V
≤
(V
I
- V
O
)
≤
35 V
Reference Voltage
3V
≤
(V
I
- V
O
)
≤
35 V, 10 mA
≤
I
O
≤
3A, P
≤
30W
Line Regulation - (note 1)
3 V
≤
(V
I
- V
O
)
≤
35 V
Load Regulation 10 mA
≤
I
O
≤
3 A
V
O
≤
5V - (note 1)
V
O
≥
5V - (note 1)
Temperature Stability (T
min
≤
T
j
≤
T
max
)
Minimum Load Current (V
I
- V
O
≤
35 V)
Current Limit (V
I
- V
O
≤
10 V)
DC
V
I
- V
O
= 30 V
RMS Output Noise, % of V
O
(T
amb
= 25
o
C, 10 Hz
≤
f
≤
10 KHz)
Ripple Rejection Ratio
V
O
= 10 V, f = 120 Hz
C
adi
= 10
μ
F
Long Term Stability (T
amb
= 125
o
C)
Note 1 :
Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects are taken
into account separately by thermal rejection.
%/V
K
VO
5
0.1
0.002
50
0.2
15
0.3
0.01
100
5
5
0.1
0.002
50
0.2
25
0.5
0.02
100
5
mV
%
%/W
μ
A
μ
A
I
adj
I
adj
v
(ref)
1.19
1.24
1.29
1.19
1.24
1.29
V
K
VI
0.02
0.05
0.02
0.05
%/V
K
VO
20
0.3
1
3.5
50
1
20
0.3
1
3.5
70
1.5
mV
%
%
mA
A
K
VT
I
O(min)
I
O(max)
5
10
3
4.5
1
0.001
3
4.5
1
0.001
%
R
vf
66
65
86
0.3
66
65
86
0.3
dB
K
VH
1
1
%
LM150-LM250-LM350
3/7
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