LM317 datasheet(6/12 Pages) ONSEMI

Part #	LM317

Description	1.5 A Adjustable Output, Positive Voltage Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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LM317

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Figure 11. Ripple Rejection versus Output Voltage

Figure 12. Ripple Rejection versus

Output Current

Figure 13. Ripple Rejection versus Frequency

Figure 14. Output Impedance

Figure 15. Line Transient Response

Figure 16. Load Transient Response

CL = 1.0 µF;

CAdj = 10 µF

Vin

CL = 1.0 µF;

CAdj = 10 µF

IL

Vin - Vout = 5 V

IL = 500 mA

f = 120 Hz

TJ = 25°C

Without CAdj

CAdj = 10 µF

Vin = 15 V

Vout = 10 V

f = 120 Hz

TJ = 25°C

Without CAdj

CAdj = 10 µF

Without CAdj

IL = 500 mA

Vin = 15 V

Vout = 10 V

TJ = 25°C

CAdj = 10 µF

Vin = 15 V

Vout = 10 V

IL = 500 mA

TJ = 25°C

CAdj = 10 µF

Without CAdj

1.5

1.0

0.5

0

-0.5

-1.0

-1.5

1.0

0.5

0

3.0

2.0

1.0

0

-1.0

-2.0

-3.0

1.5

1.0

0.5

0

100

80

60

40

20

0

120

100

80

60

40

20

0

100

80

60

40

20

0

101

100

10-1

10-2

10-3

010

20

30

40

t, TIME (µs)

010

20

30

40

0

5.0

10

15

20

25

30

35

Vout, OUTPUT VOLTAGE (V)

0.01

0.1

1.0

10

IO, OUTPUT CURRENT (A)

10

100

1.0 k 10 k

100 k

1.0 M 10 M

f, FREQUENCY (Hz)

10

100

1.0 k

10 k

100 k

1.0 M

f, FREQUENCY (Hz)

t, TIME (µs)

Vin = 15 V

Vout = 10 V

INL = 50 mA

TJ = 25°C

Vout = 10 V

IL = 50 mA

TJ = 25°C

CL = 0;

Without CAdj

CL = 0;

Without CAdj

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