RT9005B 查看數據表（PDF） - Richtek Technology
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RT9005B Datasheet PDF : 10 Pages
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Preliminary
RT9005A/B
100
90
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70
60
50
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30
0
θJA vs. Copper Area
10 20 30 40 50 60 70
Copper Area (mm2)
Figure 3
Exposed Pad
Figure 5 (c). Copper Area = 30mm2, θJA = 54°C/W
Figure 5 (d). Copper Area = 50mm2, θJA = 51°C/W
W≦2.28mm
Figure 4. Dog-Bone layout
Figure 5 (e). Copper Area = 70mm2, θJA = 49°C/W
Figure 5. Thermal Resistance vs. Different Cooper Area
Layout Design
Figure 5 (a). Minimum Footprint, θJA = 75°C/W
Figure 5 (b). Copper Area = 10mm2, θJA = 64°C/W
DS9005A/B-01 September 2007
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