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參數(shù)資料
| 型號： | LM317L |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 3-Terminal adjustable regulator |
| 中文描述： | 三端可調穩(wěn)壓器 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 184K |
| 代理商： | LM317L |
LM317L
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input–Output Voltage Differential
VI–VO
PD
TJ
Tstg
40
Vdc
Power Dissipation
Internally Limited
W
Operating Junction Temperature Range
–40 to +125
°
C
Storage Temperature Range
–65 to +150
°
C
ELECTRICAL CHARACTERISTICS
(VI–VO = 5.0 V; IO = 40 mA; TJ = Tlow to Thigh [Note 1]; Imax and Pmax [Note 2];
unless otherwise noted.)
LM317L, LB
Characteristics
Figure
Symbol
Min
Typ
Max
Unit
Line Regulation (Note 3)
TA = 25
°
C, 3.0 V
≤
VI – VO
≤
40 V
1
Regline
–
0.01
0.04
%/V
Load Regulation (Note 3), TA = 25
°
C
10 mA
≤
IO
≤
Imax – LM317L
VO
≤
5.0 V
VO
≥
5.0 V
2
Regload
–
–
5.0
0.1
25
0.5
mV
% VO
μ
A
Adjustment Pin Current
3
IAdj
IAdj
–
50
100
Adjustment Pin Current Change
2.5 V
≤
VI – VO
≤
40 V, PD
≤
Pmax
10 mA
≤
IO
≤
Imax – LM317L
1, 2
–
0.2
5.0
μ
A
Reference Voltage
3.0 V
≤
VI – VO
≤
40 V, PD
≤
Pmax
10 mA
≤
IO
≤
Imax – LM317L
3
Vref
1.20
1.25
1.30
V
Line Regulation (Note 3)
3.0 V
≤
VI – VO
≤
40 V
1
Regline
–
0.02
0.07
%/V
Load Regulation (Note 3)
10 mA
≤
IO
≤
Imax – LM317L
VO
≤
5.0 V
VO
≥
5.0 V
Temperature Stability (Tlow
≤
TJ
≤
Thigh)
Minimum Load Current to Maintain Regulation (VI – VO = 40 V)
Maximum Output Current
VI – VO
≤
6.25 V, PD
≤
Pmax, Z Package
VI – VO
≤
40 V, PD
≤
Pmax, TA = 25
°
C, Z Package
2
Regload
–
–
20
0.3
70
1.5
mV
% VO
3
TS
ILmin
Imax
–
0.7
–
% VO
mA
3
–
3.5
10
3
100
–
200
20
–
–
mA
RMS Noise, % of VO
TA = 25
°
C, 10 Hz
≤
f
≤
10 kHz
N
–
0.003
–
% VO
Ripple Rejection (Note 4)
VO = 1.2 V, f = 120 Hz
CAdj = 10
μ
F, VO = 10.0 V
4
RR
60
–
80
80
–
–
dB
Long Term Stability, TJ = Thigh (Note 5)
TA = 25
°
C for Endpoint Measurements
3
S
–
0.3
1.0
%/1.0 k
Hrs.
Thermal Resistance, Junction–to–Case
Z Package
R
θ
JC
–
83
–
°
C/W
Thermal Resistance, Junction–to–Air
Z Package
R
θ
JA
–
160
–
°
C/W
NOTES:
1.Tlow to Thigh = 0
°
to +125
°
C for LM317L
2.Imax = 100 mA
3.Load and line regulPmax = 625 mW
Pulse testing with low duty cycle is used.
4.CAdj, when used, is connected between the adjustment pin and ground.
5.Since Long–Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability
from lot to lot.
–40
°
to +125
°
C for LM317LB
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