I run the folloing WEBENCH design:
| http://webench.ti.com/webench5/power/webench5.cgi?VinMin=11&VinMax=13&O1V=5&O1I=15&base_pn=TPS40305&AppType=None&op_TA=30&lang_chosen=en_US&optfactor=3 |
According to the design given, M1 = M2 = CSD16340Q3.
According to the design given, total power dissipation of M1 and M2 are 2.47W and 1.15W respectively.
Target copper area is about 1/4 sqin
Do I need a heat sink?
How do I size the heat sink for the target design?
