LT3439 Power Dissipation Calculation

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Accepted Answer

Original Question: LT3439 Power Dissipation Calculation by KenW 
 I am unclear on a couple terms in the Power Dissipation equations on page 8 of the datasheet. 
 a) What is Vsat in Pvsat equation? 
 b) What is V in Psw equation? 
 
 Thanks, 
 Ken 
 Verified Answer: RE: LT3439 Power Dissipation Calculation by Mikee_Lacson_00 
 Hi Ken 
 a) Vsat can be taken form this graph 
 
 b) V is the switching node voltage. Vin can be used in this case 
 
 Regards, 
 Mikee

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LT3439: FAQ