LM317LZREG View Datasheet(PDF) - ON Semiconductor
Part Name
Description
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LM317LZREG Datasheet PDF : 12 Pages
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14.30V
4.30V
Vin
f = 120 Hz
Cin 0.1mF
LM317L, NCV317LB
Vout
LM317L
Adjust
R1
240
1%
Vout = 1.25 V
D1 *
1N4002
CO
+
1mF
RL
VO
R2
1.65K
1%
+
** 10mF
*ĂD1 Discharges CAdj if Output is Shorted to Ground.
**CAdj provides an AC ground to the adjust pin.
Figure 5. Ripple Rejection Test Circuit
0.4
Vin = 45 V
0.2
Vout = 5.0 V
IL = 5.0 mA to 40 mA
0
-0.2
-0.4
Vin = 10 V
Vout = 5.0 V
-0.6
IL = 5.0 mA to 100 mA
-0.8
-1.0
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 6. Load Regulation
0.50
TJ = 25°C
0.40
0.30
0.20
TJ = 150°C
0.10
0
0
10
20
30
40
50
Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V)
Figure 8. Current Limit
80
70
IL = 40 mA
f = 120 Hz
60
Vout = 10 V
Vin = 14 V to 24 V
50
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 7. Ripple Rejection
2.5
2.0
IL = 100 mA
1.5
IL = 5.0 mA
1.0
0.5
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 9. Dropout Voltage
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