mc33275st ON Semiconductor, mc33275st Datasheet - Page 9

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mc33275st

Manufacturer Part Number
mc33275st
Description
300 Ma, Low Dropout Voltage Regulator
Manufacturer
ON Semiconductor
Datasheet

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Figure 17. SOT−223 Thermal Resistance and Maximum
100
180
160
140
120
100
170
150
130
Figure 19. SOP−8 Thermal Resistance and Maximum
110
90
80
70
60
50
40
90
70
50
30
80
60
Figure 18. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
0
Power Dissipation versus P.C.B. Copper Length
Power Dissipation versus P.C.B. Copper Length
0
0
Minimum
Size Pad
5.0
5.0
10
Minimum
Size Pad
MC33275, NCV33275
L, LENGTH OF COPPER (mm)
P
L, LENGTH OF COPPER (mm)
R
L, LENGTH OF COPPER (mm)
D(max)
qJA
http://onsemi.com
10
10
P
for T
D(max)
20
Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î
Graph Represents Symmetrical Layout
L
R
A
R
qJA
15
9
15
= 50°C
qJA
for T
P
Copper
2.0 oz.
D(max)
L
A
30
= 50°C
20
20
for T
2.0 oz. Copper
2.0 oz. Copper
L
Î Î Î
Î Î Î
Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
L
A
= 50°C
40
25
25
L
L
3.0
mm
30
50
30
1.6
1.4
1.2
1.0
0.8
0.6
0.4
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
1.6
1.4
1.2
1.0
0.8
0.6
0.4

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