Viper comp design

[Mnemonic]

Hello everybody,

I need to user Viper115HS or Viper222XS vith 15V 600mA output at non isolated buck topology. I was designed my Fb pin with 130K Ohm and 11K Ohm resistors. But I can not find right Comp pin configuration. could you write capasitor and resistor configuraton for 15V 600mA output

[AScha.3]

Hi,

always same questions...?

1. you could use, what eDesign suite telling :  (for 400mA max.)

2. 600mA not possible with non-iso buck ; 590mA would be absolute maximum. But "critical" design.

3. Use a transformer (as almost everybody...) and it will work . (If you have the matching transformer ! )

[Mnemonic]

I can not calculate for 590mA at e-design. could you share

[AScha.3]

Me too.. just maximum possible message there. Not yet calculation.