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LM317L Datasheet(PDF) 5 Page - ON Semiconductor

Part No. LM317L
Description  100 mA Adjustable Output, Positive Voltage Regulator
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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LM317L Datasheet(HTML) 5 Page - ON Semiconductor

 
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LM317L
http://onsemi.com
5
*Pulse Testing Required:
1% Duty Cycle is suggested.
Line Regulation (%/V) =
VOH − VOL
x 100
*
VCC
VIH
VIL
Vin
Vout
VOH
VOL
RL
+
1
mF
CO
240
1%
R1
Adjust
R2
1
%
Cin
0.1
mF
LM317L
IAdj
Figure 1. Line Regulation and
DIAdj/Line Test Circuit
VOL
*Pulse Testing Required:
1% Duty Cycle is suggested.
Load Regulation (mV) = VO (min Load) −VO (max Load)
Load Regulation (% VO) =
VO (min Load) − VO (max Load)
X
100
VO (min Load)
VO (max Load)
LM317L
Cin
0.1
mF
Adjust
R2
1%
CO
1.0
mF
+
*
RL
(max Load)
RL
(min Load)
Vout
R1
240
1%
Vin*Vin
IAdj
IL
Figure 2. Load Regulation and
DIAdj/Load Test Circuit
VO (min Load)
Pulse Testing Required:
1% Duty Cycle is suggested.
LM317L
Vin
Vout
Adjust
R1
240
1%
+
1
mF
CO
RL
Cin
R2
1%
To Calculate R2:
Vout = ISET R2 + 1.250 V
Assume ISET = 5.25 mA
IL
IAdj
ISET
Vref
VO
VI
0.1
mF
Figure 3. Standard Test Circuit


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