LM317L 查看數據表（PDF） - Motorola => Freescale
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LM317L Datasheet PDF : 12 Pages
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MAXIMUM RATINGS
Rating
Input–Output Voltage Differential
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
LM317L
Symbol
Value
Unit
VI–VO
40
Vdc
PD
Internally Limited
W
TJ
–40 to +125
°C
Tstg
–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
Load Regulation (Note 3), TA = 25°C
10 mA ≤ IO ≤ Imax – LM317L
VO ≤ 5.0 V
VO ≥ 5.0 V
Adjustment Pin Current
Adjustment Pin Current Change
2.5 V ≤ VI – VO ≤ 40 V, PD ≤ Pmax
10 mA ≤ IO ≤ Imax – LM317L
Reference Voltage
3.0 V ≤ VI – VO ≤ 40 V, PD ≤ Pmax
10 mA ≤ IO ≤ Imax – LM317L
Line Regulation (Note 3)
3.0 V ≤ VI – VO ≤ 40 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
RMS Noise, % of VO
TA = 25°C, 10 Hz ≤ f ≤ 10 kHz
Ripple Rejection (Note 4)
VO = 1.2 V, f = 120 Hz
CAdj = 10 µF, VO = 10.0 V
Long Term Stability, TJ = Thigh (Note 5)
TA = 25°C for Endpoint Measurements
Thermal Resistance, Junction–to–Case
Z Package
1
Regline
–
0.01
0.04
%/V
2
Regload
–
–
3
IAdj
–
1, 2
∆IAdj
–
5.0
25
mV
0.1
0.5
% VO
50
100
µA
0.2
5.0
µA
3
Vref
1.20 1.25 1.30
V
1
Regline
–
0.02
0.07
%/V
2
Regload
–
20
70
mV
–
0.3
1.5
% VO
3
TS
–
0.7
–
% VO
3
ILmin
–
3.5
10
mA
3
Imax
mA
100
200
–
–
20
–
N
–
0.003
–
% VO
4
RR
dB
60
80
–
–
80
–
3
S
–
0.3
1.0 %/1.0 k
Hrs.
RθJC
–
83
–
°C/W
Thermal Resistance, Junction–to–Air
Z Package
RθJA
–
160
–
°C/W
NOTES: 1. Tlow to Thigh = 0° to +125°C for LM317L
–40° to +125°C for LM317LB
2. Imax = 100 mA Pmax = 625 mW
3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.
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.
2
MOTOROLA ANALOG IC DEVICE DATA
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