LM317L 查看數據表（PDF） - ON Semiconductor

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LM317L

LOW CURRENT THREE-TERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATOR

ON Semiconductor 

LM317L, NCV317LB

170

3.2

150

PD(max) for TA = 50°C

2.8

130

2.4

110

90

70

Graph represents symmetrical layout 2.0

ÎÎÎÎÎÎÎÎÎÎÎÎÎ L

2.0 oz.

Copper

1.6

ÎÎÎÎÎÎÎ1.2

L

3.0 mm

50

0.8

RθJA

30

0.4

0

10

20

30

40

50

L, LENGTH OF COPPER (mm)

Figure 24. SOP-8 Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

http://onsemi.com

9

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