Part Number: TPS65130EVM-063 Hello,
I have used the TPS65130 to create a +/- 5.5V rail from a 5V input. I was curious about improving the ripple on the negative output.
I am attaching my two scope shots.
TEK00003 is the negative rail measured across…
Other Parts Discussed in Thread: TPS65130 I wanted to test the evaluation board and compare my measurements to those depicted on page 8 of the tps65130 datasheet.
I connected a dc power supply to vin and gnd with j1 and j2 enabled, i enabled enp and psp…
Hello David,
I reviewed your schematics and questions. Schematics looks good but I did notice that TPS65131 device Vin is not connected to any voltage and C2 is your schematics should be connected to +UB+ input supply.
Now to answer your questions:
A0…
Hello Bhavi,
Can you send a picture of your board maybe. It seems to me that your problem is related to the fabrication of your board and not the IC itself or circuit schematic.
There is an EVM available at www.ti.com/.../tps65130evm-063 and you could…
Hi Ilona,
thanks for point out the issue with ceramic capacitors. We noticed it before and tried higher rated capacitors. The ripples are down a bit but we still have an issue with voltage stabilization on the negative voltage.
To rule out issues…
Hello Alex,
There is no TINA-TI model for this part available and up to now, there is also no plan to generate such a model.
There is an evaluation module available of this part, therefore you could have a look in the lab on the power supply noise.…