TPS61196: About Vifbv for equation 4.

Hi Acguy,
This is just the numarsic gain , it was determainded by the internal circuit. After you determained the output currentr, R11 is fixed, then ,you can refer to Figure 5 to know the minimum headroom voltage. After you choose the minimum headroom voltage, you can use equation 4 and R11 to calculate the R10 value. that's the proper order. thanks.
Sean

Hello Sean,

Thank you for reply. Would you tell me more easily?

What is origin for 307.2mV?
Does the voltage has some tolerance?

Regards,
ACGUY

Hi Acguy,

Actually I don't know the tolerance of this 307.2mV. Can I know what's your concern about this spec? Maybe I can check with our designer is that is necessary.

Best Regards
Sean

Hello Sean,

This voltage was not listed on electrical characters table.
What is this voltage for? What source?
What is Headroom Voltage?

> Can I know what's your concern about this spec?
I do like to know that this voltage importance for design calculation.

Regards,
ACGUY

Hi ACGUY,
I'm sorry for this misunderstand. I will aks our designer to check this spec, when I get response, I will contact you. Thanks.
Best reagrds
Sean