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參數(shù)資料
| 型號： | LM317M |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 500 mA Adjustable Output, Positive Voltage Regulator(3端可調正向穩(wěn)壓器) |
| 中文描述： | 500毫安可調輸出，正電壓穩(wěn)壓器（三端可調正向穩(wěn)壓器） |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 158K |
| 代理商： | LM317M |
LM317M
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(V
I
V
O
= 5.0 V; I
O
= 0.1 A, T
J
= T
low
to T
high
(Note 6), unless otherwise noted.)
Characteristics
Figure
Symbol
LM317MA / LM317MAB
Min
Typ
Unit
Max
Line Regulation (Note 7) (T
A
= 25
°
C, 3.0 V
≤
V
I
V
O
≤
40 V)
Load Regulation (Note 7)
T
A
= 25
°
C, 10 mA
≤
I
O
≤
0.5 A
V
O
≤
5.0 V
V
O
≥
5.0 V
Adjustment Pin Current
3
Reg
line
Reg
load
0.01
0.04
%/V
4
5.0
0.1
25
0.5
mV
% V
O
5
I
Adj
I
Adj
50
100
A
Adjustment Pin Current Change
2.5 V
≤
V
I
V
O
≤
40 V, 10 mA
≤
I
L
≤
0.5 A, P
D
≤
P
max
Reference Voltage
3.0 V
≤
V
I
V
O
≤
40 V, 10 mA
≤
I
L
≤
0.5 A, P
D
≤
P
max
Line Regulation (Note 7)
3.0 V
≤
V
I
V
O
≤
40 V
Load Regulation (Note 7)
10 mA
≤
I
O
≤
0.5 A
V
O
≤
5.0 V
V
O
≥
5.0 V
Temperature Stability (T
low
≤
T
J
≤
T
high
)
Minimum Load Current to Maintain Regulation (V
I
V
O
= 40 V)
Maximum Output Current
V
I
V
O
≤
15 V, P
D
≤
P
max
V
I
V
O
= 40 V, P
D
≤
P
max
, T
A
= 25
°
C
RMS Noise, % of V
O
(T
A
= 25
°
C, 10 Hz
≤
f
≤
10 kHz)
Ripple Rejection, V
O
= 10 V, f = 120 Hz (Note 8)
Without C
Adj
C
Adj
= 10 F
LongTerm Stability, T
J
= T
high
(Note 9)
T
A
= 25
°
C for Endpoint Measurements
6. T
low
to T
high
= 0
°
to +125
°
C for LM317MA
7. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
8. C
Adj
, when used, is connected between the adjustment pin and ground.
9. Since LongTerm Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average
stability from lottolot.
3, 4
0.2
5.0
A
5
V
ref
1.225
1.250
1.275
V
3
Reg
line
0.02
0.07
%/V
4
Reg
load
20
0.3
70
1.5
mV
% V
O
5
T
S
I
Lmin
I
max
0.7
% V
O
mA
5
3.5
10
5
0.5
0.15
0.9
0.25
A
N
% V
O
dB
6
RR
66
65
80
5
S
0.3
1.0
%/1.0
kHrs.
T
low
to T
high
= 40
°
to +125
°
C for LM317MAB.
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