Datasheet

L7986TA Application information
Doc ID 022098 Rev 3 27/43
Figure 14. Open-loop gain Bode diagram with electrolytic/tantalum output capacitor
6.5 Thermal considerations
The thermal design is important to prevent the thermal shutdown of the device if junction
temperature goes above 150 °C. The three different sources of losses within the device are:
a) conduction losses due to the non-negligible R
DSon
of the power switch; these are
equal to:
Equation 35
P
ON
R
DSON
I
OUT
()
2
D⋅⋅=