RT6208
PD(MAX) = (125C 25C) / (186.2C/W) = 0.53W for
SOT-23-8 package
The maximum power dissipation depends on the
operating ambient temperature for fixed TJ(MAX) and
thermal resistance, JA. The derating curve in Figure 2
allows the designer to see the effect of rising ambient
temperature on the maximum power dissipation.
1.0
Four-Layer PCB
0.9
0.8
0.7
SOT-23-8
SOT-23-6
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
25
50
75
100
125
Ambient Temperature (°C)
Figure 2. Derating Curve of Maximum Power
Dissipation
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is a registered trademark of Richtek Technology Corporation.
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14
DS6208-02 May 2016
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
