Hi guys,

I've been trying to recreate the circuit, converting a 5V supply to 15V and -15V outputs, that I got directly from the datasheet of the ADP5070. Here it is below:

and here is my circuit on LTSPICE:

The positive output works fine but the negative not as much so:

I was expecting a -15V output on VNEG but for some reason, it's stuck on 0V.
I've attached my asc file if you wanna have a look

 

Hi,
Did you find the answer to your problem? I'm facing similar issues.
Thank you

 

Here's the device simulation giving outputs of ±15V.
I modified the macromodel's test fixture R1 and R4 values to give the desired voltage (right-click on U1 icon and left-click Open this macromodel's test fixture).

Not sure why the TS's schematic didn't work (although R1 and R4 resistances seem rather high).

 

I tried the circuit from post #1 and can not get the negative half to work.
I tried the circuit that came with LTSPICE and it works. ADP5070.asc
---edited----
Changed the values of R4/R5 and it works. Like Crutschow said.

 

Changed the values of R4/R5

R1 and R4?