參數(shù)資料
型號(hào)： 2576
廠商： National Semiconductor Corporation
英文描述： 5-Amp Adjustable Regulators
中文描述： 5安培可調(diào)穩(wěn)壓器
文件頁(yè)數(shù)： 2/16頁(yè)
文件大?。?/td> 396K
代理商： 2576
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 4)
Power Dissipation
Input/Output Voltage Differential
Storage Temperature
Internally limited
+40V, 0.3V
65C to +150C
Lead Temperature
Metal Package (Soldering, 10 seconds)
Plastic Package (Soldering, 4 seconds)
ESD Tolerance
300C
260C
TBD
Operating Temperature Range
LM138
LM338
55C
≤
T
J
≤
+150C
0C
≤
T
J
≤
+125C
Electrical Characteristics
Specifications with standard type face are for T
J
= 25C, and those with
boldface type
apply over
full Operating Tempera-
ture Range.
Unless otherwise specified, V
IN
V
OUT
= 5V; and I
OUT
= 10 mA. (Note 2)
Symbol
Parameter
Conditions
LM138
Typ
1.24
Units
Min
1.19
Max
1.29
V
REF
Reference Voltage
3V
≤
(V
IN
V
OUT
)
≤
35V,
10 mA
≤
I
OUT
≤
5A, P
≤
50W
3V
≤
(V
IN
V
OUT
)
≤
35V (Note 3)
V
V
RLINE
Line Regulation
0.005
0.02
0.1
0.3
0.002
45
0.2
0.01
0.04
0.3
0.6
0.01
100
5
%/V
%/V
%
%
%/W
μA
μA
V
RLOAD
Load Regulation
10 mA
≤
I
OUT
≤
5A (Note 3)
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Change
20 ms Pulse
I
ADJ
I
ADJ
10 mA
≤
I
OUT
≤
5A,
3V
≤
(V
IN
V
OUT
)
≤
35V
T
MIN
≤
T
J
≤
T
MAX
V
IN
V
OUT
= 35V
V
IN
V
OUT
≤
10V
DC
0.5 ms Peak
V
IN
V
OUT
= 30V
10 Hz
≤
f
≤
10 kHz
V
OUT
= 10V, f = 120 Hz, C
ADJ
= 0 μF
V
OUT
= 10V, f = 120 Hz, C
ADJ
= 10 μF
T
J
= 125C, 1000 Hrs
K Package
V
R/T
I
LOAD
(Min)
I
CL
Temperature Stability
Minimum Load Current
Current Limit
1
%
mA
3.5
5
5
7
8
12
1
A
A
A
%
dB
1
V
N
RMS Output Noise, % of V
OUT
Ripple Rejection Ratio
0.003
60
60
75
dB
Long-Term Stability
Thermal Resistance,
Junction to Case
Thermal Resistance, Junction to
Ambient (No Heat Sink)
0.3
1
1
%
θ
JC
C/W
θ
JA
K Package
35
C/W
Electrical Characteristics
Symbol
Parameter
Conditions
LM338
Typ
1.24
Units
Min
1.19
Max
1.29
V
REF
Reference Voltage
3V
≤
(V
IN
V
OUT
)
≤
35V,
10 mA
≤
I
OUT
≤
5A, P
≤
50W
3V
≤
(V
IN
V
OUT
)
≤
35V (Note 3)
V
V
RLINE
Line Regulation
0.005
0.02
0.1
0.3
0.002
45
0.03
0.06
0.5
1
0.02
100
%/V
%/V
%
%
%/W
μA
V
RLOAD
Load Regulation
10 mA
≤
I
OUT
≤
5A (Note 3)
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Change
20 ms Pulse
I
ADJ
I
ADJ
10 mA
≤
I
OUT
≤
5A,
3V
≤
(V
IN
V
OUT
)
≤
35V
0.2
5
μA
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