TPS54620: Maximum Duty cycle When VIN=6.1V, VOUT=5.5V, Fsw=650k

Wenhao Wu

Part Number: TPS54620

HI Team,

My customer wants to use TPS54620 for 6.1VIN->5VOUT, 650kHz. The description in datasheet about low dropout operation does not state it clearly when PVIN=VIN. So, could you please help check the feasibility for TPS54620 in this operation state?

-Wenhao

over 5 years ago

0 Anthony F over 5 years ago

TI__Mastermind 35165 points

Hi Wenhao,

The answer in the post below should help answer this. Please see the equation in my last post in that thread for estimating the max Vout for a given Vin and fsw.

https://e2e.ti.com/support/power-management/f/196/t/891004

Let me know if any more details are needed after reading this.

Anthony

Power management

Power management forum

TPS54620: Maximum Duty cycle When VIN=6.1V, VOUT=5.5V, Fsw=650k