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PSK, PSS Series Data Sheet
η
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B, B1 Cooling Plate
Where a cooling surface is available, a cooling plate (option B
or option B1) can be fitted instead of the standard heatsink.
The mounting system must ensure sufficient cooling capacity
Positive Switching Regulators
to guarantee that the maximum case temperature T C max is not
exceeded. The required cooling capacity can be calculated by
the following formula:
100% – η
P Loss = –––––––- ? ( V o ? I o )
5
47.2
38.5
11.8
11027
6.5
European
Projection
Fig. 17
Option B, large cooling plate
Weight: 1.3 kg
5
47.2
17.3
133.4 ±0.2
168
30
38.5
11.8
5
158
11028
M4
168 ±0.5
171.9
Fig. 18
Option B1, small cooling plate
Weight: 1.2 kg
BCD20029-G Rev AB, 12-Aug-2013
MELCHER
The Power Partners.
Page 19 of 20
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