Part Number: TPS54917
Hi SIR
We use tps54917 to design 3.3V to 1.0V_9A power supply for asic use.
A phenomenon was found during the measurement.
As long as the inductor current enters the continuous conduction mode (about 1A),
Low Side Mosfet_Vds…
Part Number: TPS54917 Hi Expert,
When customer test tps54917, they see a ~40Khz oscillated frequency at Vout in no load. Also, they observe the oscillation frequency would change if C4 changed. Do you have any idea about it?
Ch1: Vsw
Ch2:…
Part Number: TPS54917 Hi Expert,
I have a question that when we measure bode plot and see gain across zero not only one time, shall we measure 1st or 2nd point for phase margin?
For example we did test on TPS54917 with Cff=680pF and see 1st Fc=28K…
that device is a package spin of the TPS54910. You can use the same design procedure. for more generic treatment of voltage mode buck converter see:
http://focus.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=slva104a&fileType=pdf
This…
I would need to change the switchingfrequency to see how efficiency changes. But today I can only temporary change the frequency to see the gain/phase plots. Would love to also be able to set the switchingfrequency is the base design to see how efficiency…
Other Parts Discussed in Thread: TPS54917 if I make a design 3.0V to 0.9V 3A using TPS54917 I get a warning that minimum ontime is violated. This happes as the default frequency is 1.6MHz. but there is no easy way to change the frequency to a lower value…
Hi,
We are releasing next version of SwitcherPro on January 30th, 2009. TPS54617 is included in there. Please use TPS54160 or TPS54917 in the meantime as a replacement.
Thanks , Hetal Joshi Project Manager Analog eLab Design Center Texas Instruments…
Hello,
The UCC3806 is a dual output controller though it can be used in a flyback where only one of the outputs are used to drive the switch it might be better to choose a single output controller. Look at page 46 of the attached under General Purpose…
