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TPS53681: i want to achieve high power mutiphase DC/DC

Zhanpeng Li
Intellectual 2140 points
Part Number: TPS53681

Hi team,

one of my customer prefer to achieve mutiphase DC/DC. i know that we hace many mutiphase controller such as tps53681 can achieve this kind of functions. 

However, they provide me with new technical requirements. i consolidated as follow: 

1)input voltage:24v

2)output voltage:12-20V

3)output current: at least 100A

I know that normally we use DSP for this kind of design. but i was also curious about whether our mutiphase controller can use in higher output voltage? 

  • 0
    TI__Genius 11095 points

    Hi Zhangpeng,

    TPS53681 requires smart power stages and TI does not have any suitable smart power stages for 24Vdc input @ 50-80% duty cycle. These products are focused on 12V input bus and relatively low duty cycle. Aside from that we would need to apply external scaling to keep TPS53681 pins within their ratings.