I Have a AP1086 three prong regulator. I want to use it to convert a 9V battery to 5V, for my lcd/pic and every thing else.
The Equation on the data sheet reads like Vo=Vref * ( 1 +R2/R1).
So my question is, if I want my Vo to be 5V then I plug in 5V as Vo and find what ratio i need R2/R1. The problem i am having is what is Vref?? I think i read it was 1.25V, but then elsewhere in the data sheet it said 1.5V i am not sure.
So if i need 5V to be Vo and i use 1.25 as Vref i get R2/R1= 3, meaning i should use 300/100 Ohms resistors to get the desired effect?
I am new to this so not sure.... I would have thought that your Vin would have some affect on how you choose your resistors but i guess i would be wrong
The Equation on the data sheet reads like Vo=Vref * ( 1 +R2/R1).
So my question is, if I want my Vo to be 5V then I plug in 5V as Vo and find what ratio i need R2/R1. The problem i am having is what is Vref?? I think i read it was 1.25V, but then elsewhere in the data sheet it said 1.5V i am not sure.
So if i need 5V to be Vo and i use 1.25 as Vref i get R2/R1= 3, meaning i should use 300/100 Ohms resistors to get the desired effect?
I am new to this so not sure.... I would have thought that your Vin would have some affect on how you choose your resistors but i guess i would be wrong