LDL40PUR Adjustable Voltage Setting

[MattChou]

Hi ST Micro,

Please send me the information for the adjustable LDO output voltage desgined from R1 and R2 formula.

[Peter BENSCH]

Welcome @MattChou, to the community!

Unfortunately, the formula for calculating the resistors was not included in the data sheet. However, it is essentially the same as for many LDOs of the last few decades:

Vout = Vref*(1+R1/R2)+R1*Iadj

with Vref=1.2V (typ.), Iadj=0.5uA (max)

Hope that helps?

Regards
/Peter

[MattChou]

Thanks, Peter, it helps.