Power management forum

sreehari cp

Part Number: TPS51385

Tool/software:

Hi,

In TPS51385 buck regulator datasheet the formula for calculating the feedback resistor for setting output voltage is not mentioned. Please suggest.

Regards,

Sreehari.

over 1 year ago

0 Aurora Tie over 1 year ago

TI__Genius 16740 points

Hi Sreehari,

You can use below equation. For TPS51385, Vref=0.6V. Thanks.

Aurora

0 sreehari cp over 1 year ago in reply to Aurora Tie

Prodigy 80 points

Ok thank you, suggested equation not there in the datasheet, from where you got this equation and image.

0 Aurora Tie over 1 year ago in reply to sreehari cp

TI__Genius 16740 points

Hi,

This is the general formula for the BUCK circuit, which I found from the datasheet of other products. You can refer to this formula for calculation. Thanks.

Aurora