TPS65140-Q1: Can we don't use the boost converter?

Hi Iris,

The LDO and charge pump need to be supplied by SUP (Boost out put), so it can not be disabled.

BR

Patrick

Hi Patrick,

Thanks.

+18V, -11V, +-6.2V, for the 4 rails I suggested customer to use TPS65140 and TPS65131. Do you have better solution?

Hi Iris,

I will search if we have better solutions, and may I know whether you can share customer's LCD panel datasheet so that I can refer more detailed spec requirements?

BR

Patrick

Hi Patick,

Please help to review the schematic. If they don't connect boost output to load, is it OK?

And this is the LCD panel datasheet. Please help to check if there is a better solution:

SCHEMATIC1 P4.LCD Power.pdf

Hi Iris,

It's okay that boost output connected to no load. And I'll see if we have better solutions and give you feedback later.

BR

Patrick

Hi Iris,

So sorry that we don't have better solutions with two positive outputs and two negative outputs.

BR

Patrick