LM317LDG Просмотр технического описания (PDF) - ON Semiconductor
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LM317LDG Datasheet PDF : 12 Pages
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LM317L
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
1
Regline
− 0.01 0.04
2
Regload
− 5.0 25
− 0.1 0.5
3
IAdj
− 50 100
1, 2
DIAdj
− 0.2 5.0
%/V
mV
% VO
mA
mA
3
Vref
1.20 1.25 1.30
V
1
Regline
− 0.02 0.07
%/V
2
Regload
− 20 70
− 0.3 1.5
mV
% VO
3
TS
− 0.7 −
% VO
3
ILmin
− 3.5 10
mA
3
Imax
mA
100 200 −
−
20
−
N
− 0.00 −
% VO
3
Ripple Rejection (Note 4)
VO = 1.2 V, f = 120 Hz
CAdj = 10 mF, VO = 10.0 V
4
RR
dB
60 80
−
−
80
−
Long Term Stability, TJ = Thigh (Note 5)
TA = 25°C for Endpoint Measurements
3
S
− 0.3 1.0
%/1.0 k
Hrs.
3. Tlow to Thigh = 0° to +125°C for LM317L −40° to +125°C for LM317LB
4. Imax = 100 mA Pmax = 625 mW
5. 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.
6. CAdj, when used, is connected between the adjustment pin and ground.
7. 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.
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