Other Parts Discussed in Thread: TPS62802, LMR62421
Tool/software: WEBENCH® Design Tools
Hi,
When I try to design a multiple rails power supply (input is USB power, about 5V DC, the output has three DC supplies: 3.3V, 0.5A; 15V, 0.5A; -15V, 0.5A). After I put the parameters into Webench, it suggests the responsible ICs for the three supplies and I click the view project details, all is fine. But when I click the green button: create project, I get a mistake in the supply -15V, 0.5A, it shows a big false symbol (X) on the corresponding IC LM25088, and the supply -15V, 0.5A is not produced. Why?
Sincerely Thankyou
Qing