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參數(shù)資料
| 型號： | LT338AK |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 5A Positive Adjustable Voltage Regulator |
| 中文描述： | 1.2 V-32 V ADJUSTABLE POSITIVE REGULATOR, MBFM2 |
| 封裝： | METAL CAN, TO-3, 3 PIN |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 185K |
| 代理商： | LT338AK |
2
LT138A/LT338A
LM138/LM338
A
Power Dissipation.............................. Internally Limited
Input-to-Output Voltage Differential........................ 35V
Operating Junction Temperature Range
LT138A/LM138 ............................... –55
°
C to 150
°
C
LT338A/LM338 ................................... 0
°
C to 125
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
Storage Temperature Range................ –65
°
C to 150
°
Lead Temperature (Soldering, 10 sec)................. 300
°
C
PRECO
N
DITIO
IU
U
100% Thermal Limit Burn-In
(Note 1)
LT138A
TYP
1.250
1.250
LM138
TYP
SYMBOL
V
REF
PARAMETER
Reference Voltage
CONDITIONS
I
OUT
= 10mA, T
J
= 25
°
C
3V
≤
(V
IN
– V
OUT
)
≤
35V,
10mA
≤
I
OUT
≤
5A, P
≤
50W
3V
≤
(V
IN
– V
OUT
)
≤
35V, (Note 3)
MIN
1.238
1.225
MAX
1.262
1.270
MIN
MAX
UNITS
V
V
G
1.19
1.24
1.29
V
OUT
V
IN
V
OUT
I
OUT
Line Regulation
0.005
0.02
0.01
0.04
0.005
0.02
0.01
0.04
%/V
%/V
G
Load Regulation
10mA
≤
I
OUT
≤
5A, (Note 3)
V
OUT
≤
5V
V
OUT
≥
5V
V
OUT
≤
5V
V
OUT
≥
5V
20ms Pulse
V
OUT
= 10V, f = 120Hz
C
ADJ
= 0
μ
F
C
ADJ
= 10
μ
F
5
15
0.3
30
0.6
0.01
5
15
0.3
30
0.6
0.01
mV
%
mV
%
%/W
0.1
20
0.3
0.002
0.1
20
0.3
0.002
G
G
Thermal Regulation
Ripple Rejection
G
G
60
75
45
0.2
60
75
45
0.2
dB
dB
μ
A
μ
A
60
60
I
ADJ
I
ADJ
Adjust Pin Current
Adjust Pin Current Change
G
100
5
100
5
10mA
≤
I
OUT
≤
5A,
3V
≤
(V
IN
– V
OUT
)
≤
35V
(V
IN
– V
OUT
) = 35V
(V
IN
– V
OUT
)
≤
10V
DC
0.5ms Peak
(V
IN
– V
OUT
) = 30V, T
J
= 25
°
C
G
Minimum Load Current
Current Limit
G
3.5
5
3.5
5
mA
I
SC
G
G
5
6
8
5
6
8
A
A
A
12
1
12
1
2
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. (Note 2)
The
G
denotes specifications which apply over the full operating
U
PACKAGE/ORDER U
ORDER
PART NUMBER
LT138AK
LT338AK
LM138K
LM338K
T
JMAX
= 150
°
C,
θ
JA
= 35
°
C/W,
θ
JC
= 1
°
C/W (LT138A/LT138)
T
JMAX
= 125
°
C,
θ
JA
= 35
°
C/W,
θ
JC
= 1
°
C/W (LT338A/LT338)
Consult factory for Industrial grade parts.
ORDER
PART NUMBER
LM338P
V
OUT
V
IN
ADJ
3
2
1
FRONT VIEW
P PACKAGE
3-LEAD PLASTIC TO-3P
T
JMAX
= 125
°
C,
θ
JA
= 45
°
C/W
2
1
V
IN
CASE
IS OUTPUT
ADJ
K PACKAGE
2-LEAD TO-3 METAL CAN
BOTTOM VIEW
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