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参数资料
型号： LM317D2TXM
厂商： FAIRCHILD SEMICONDUCTOR CORP
元件分类： 基准电压源/电流源
英文描述： 3-Terminal Positive Adjustable Regulator
中文描述： 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSSO3
封装： LEAD FREE, D2PAK-3
文件页数： 2/5页
文件大小： 588K
代理商： LM317D2TXM
www.fairchildsemi.com
2
L
Absolute Maximum Ratings
Note 1:
Absolute Maximum Ratings: are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at
these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended
Operating Conditions” table will define the conditions for actual device operation.
Electrical Characteristic
(V
I
- V
O
5V, I
O
0.5A, 0
q
C
d
T
J
d
125
q
C, I
MAX
1.5A, P
DMAX
20W, unless otherwise specified)
Note 2:
Load and line regulation are specified at constant junction temperature. Change in V
D
due to heating effects must be taken into account separately.
Pulse testing with low duty is used. (P
MAX
20S)
Note 3:
CADJ, when used, is connected between the adjustment pin and ground.
Parameter
Symbol
V
I
- V
O
T
LEAD
P
D
T
j
T
STG
'
V
O
/
'
T
Value
40
230
Unit
V
q
C
W
q
C
q
C
% /
q
C
Input-Output Voltage Differential
Lead Temperature
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Temperature Coefficient of Output Voltage
Internally limited
0
a
125
65
a
125
r
0.02
Parameter
Symbol
Rline
Conditions
Min
Typ
Max
Unit
Line Regulation (Note 2)
T
A
25
q
C
3V
d
V
I
V
O
d
40V
3V
d
V
I
V
O
d
40V
T
A
25
q
c, 10mA
d
I
O
d
I
MAX
V
O
5V
V
O
t
5V
10mA
d
I
O
d
I
MAX
V
O
5V
V
O
t
5V
––
0.01
0.04
% / V
–
0.02
0.07
% / V
Load Regulation (Note 2)
Rload
–
18.0
0.4
25.0
0.5
mV% / V
O
–
40.0
0.8
70.0
1.5
mV% / V
O
Adjustable Pin Current
Adjustable Pin Current Change
I
ADJ
'
I
ADJ
–
–
46.0
100
P
A
3V
d
V
I
V
O
d
40V
10mA
d
I
O
d
I
MAX
P
D
d
P
MAX
3V
d
V
IN
- V
O
d
40V
10mA
d
I
O
d
I
MAX
P
D
d
P
MAX
–
2.0
5.0
P
A
Reference Voltage
V
REF
1.20
1.25
1.30
V
Temperature Stability
Minimum Load Current to Maintain Regulation
Maximum Output Current
ST
T
I
L(MIN)
I
O(MAX)
–
–
–
0.7
3.5
2.2
–
% / V
O
mA
V
I
- V
O
40V
V
I
- V
O
d
15V, P
D
d
P
MAX
V
I
- V
O
d
40V, P
D
d
P
MAX
T
A
25
q
C
T
A
25
q
C, 10Hz
d
f
d
10KHz
V
O
10V, f
120Hz without C
ADJ
C
ADJ
10
P
F (Note 3)
T
A
25
q
C for end point measurements, 1000HR
–
12.0
1.0
A
0.3
–
RMS Noise,% of V
OUT
Ripple Rejection
eN
–
0.003
0.01
% / V
O
RR
66.0
60.0
75.0
0.3
–
dB
Long-Term Stability, T
J
T
HIGH
Thermal Resistance Junction to Case
ST
–
1.0
%
R
T
JC
–
5.0
–
q
C / W
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