**Part Number:**LM5180-Q1

**Other Parts Discussed in Thread:**LM5180, LM5181

**Tool/software:**

**I start to do worst case analysis for our design and I have some confusion about the LM5180 PSR flyback converter quickstart tool and datasheet.**

**Datasheet- https://www.ti.com/product/zh-tw/LM25180-Q1**

**The attachment is quickstart tool from TI. https://www.ti.com/tool/LM5180DESIGN-CALC**

**According to the datasheet of equation, I can calculate the maximum output current (follow the figure) in different input voltage.**

**The ratio of output power is relative to the output power and maximum power that will affect the operation mode of LM5180**

** ****Please help us provide the equation of total rate power(figure 20 in datasheet)**

**According to the quick calculation tool, the operation mode is different curve in different input voltage (follow the attachment)**

__Could you help me to verified which one is correct(and how to calculate these curve)?__

__How to calculate the power consumption of IC because delta need to analysis the maximum junction temperature?__

**Asker Cheng **