Part Number: TPS62933F is there a difference between FCCM and FPWM? aren't they operate in the same way? is there also a difference between PFM and PSM? Is there a big difference in efficiency between FCCM and PFM at light loads? can I achieve 20mV ripple…
Part Number: TPS62933F Other Parts Discussed in Thread: TPS62933P Dear expert,
my customer is using TPS62933F, but we find the input power supply will be short when power up. could you help to check the schematic. thanks.
BR
Chi
Part Number: TPS62933F Hi,
The description about FCCM on p1 of D/S, it says "FCCM" means forced continuous current modulation.
but on p26, FCCM represents "forced continuous conduction mode".
Which one is correct? I think "forced continuous…
Part Number: TPS62933F Dear TI experts.
I have read the datasheet of TPS62933F, but I do not understand the meaning of the parameters Ip and Ih, especially the term 'hysteresis voltage'. Could you explain it in detail? Additionally, in the recommended…
Other Parts Discussed in Thread: TPS7A39 , TPS62933F Hi TI team,
I am looking for a converter that with below parameters:-
1. Dual input voltage i.e -27V and +27V.(DC input)
2. Required dual output voltage of -3.3V and +3.3V.(DC output)
Please help in…
Hi Aleksei,
It's always to hard to accurately calculate decreased fsw during PFM operation. You may use webench simulation results as a reference, but hard to get an accurate value of decreased fsw.
If you want fixed fsw among full loading range…
Hi Ruby
Thank you for these comments and agreed, I would also think that one must use the TPS62933F to implement a Flybuck.
Do you have a reference design that the customer could use as a starting point for:
Vin= 12V ... 28V, Vout=5V, Iout=100mA
.... or…
Hi Fred
As we talked offline, we may have some actions here:
1. Use TPS62933F to check whether there is any noise here.
2. Capture the output voltage during load transient
3. Check the output cap voltage tolerance.
You may also try to add one Cff here…