Part Number: TPS54424 Other Parts Discussed in Thread: TPS54320 , TPS54623 Tool/software: WEBENCH® Design Tools Hello,
I am trying TPS54424 in Web Bench for a design that has 5V,3.3V,1.8V and 1V rails. The high efficiency due to low rds on of the fets…
Weihao,
Your original post was TPS54218 and TPS54160. The two links above are for TPS54331 and TPS54320. Can you elaborate and tell me the detailes steps of the procedure that is causing your issue?
Part Number: TPS54521 Tool/software: Hi TI Team,
We are planning to incorporate the TPS54521 in our design to convert 12V to a stable 1.8V output at 2.5A. I have attached the schematic and calculation sheet for your reference.
Could you kindly review…
Thank you for sending the waveforms.
The 19kHz signal that they measured indicates instability. This is probably causing the PG signal to trip. Have they measured the stability of this design or measured a bode plot?
Can you also confirm that R33…
Almost all our parts have OCP in one form or another (pulse by pulse, hiccup mode, etc). You might start with:
TPS54620 family, 4.5 V to 17 V input at 6 A
TPS54320 4.5 V to 17 V input at 3 A
Latest generation T{S54824 at 8 A or TPS54424 at 4 A output…
Other Parts Discussed in Thread: TPS54320
Req:
Vin - 5V ,Vout 4V, Iout - 0.6A
We tried to make design for TPS54320 using "WBENCH" tool but it responds this design cannot be done using this IC but when we used "switcher pro" it makes the design.…
Answer 1: TPS54320 has a pull down transistor from SW pin to GND. This pull down transistor is active and charges the boot caopacitor once the output voltage is 109% of the regulated. It is acting like synchronuous rectifier at low input voltage.
Answer…
I'm not sure about the test conditions for those two graphs. They are definitely different frequency. While I am sure that it is actual measured data, we will typically pick the best available measurement for the front page as the front page is considered…
