I am asking about the Description of efficiency measurement in LTC3731 datasheet.
①About temperature coefficient
In the formula for Pmain on page 27 of the data sheet, if the value of δ is calculated as [0.005*65] and the value of Rds(on) as 9 mΩ, the answer is 0.87W.
The value of Rds(on) at 90°C is multiplied by the temperature coefficient.
Is it correct?
②About values in expressions
Please tell me what should be substituted for (2) and (3) in the following equation.