Hi Scott,
Your design has not been properly compensated . I guess the comp values of the typical design mentioned in the datasheet is followed in your design .
What is the output current of this application . I see the inductor chosen by you have…
Hello Tahar,
Below is the calculation tool file that the customer replied.
TPS546C20A_TPS546C23_Calculator_Checklist_1p0 (1).xlsx
They said they couldn't change the values because they didn't understand the contents of the display items below. …
Part Number: TPS40322 power supply block with TPS40322 was designed in accordance to the Application Note as well as the Loop Stability calculator file.
PDFs are attached. Can we count on an stable operation with the chosen values of the components…
Hello Anthony,
Please provide the updated TPS40KType spreadsheet that you used prior to making the last recommendations for the compensation network values.
Please see attached.
David Robinson
TPS40KType III Loop Stability kVenable_sluc263c_DGR.xlsx
1/10 of the switching frequency is a good choice.
The bandwidth corresponds to how fast the loop response is, so higher bandwidth means the output voltage can recover much more quickly during load transient.
Here is a design tool/checklist to help…
Hi Anthony,
The stability comes out fine with the 1715.TPS40KType III Loop Stability kVenable_sluc263c.xls . Please note that we had 2x 47uF and 1x470uF ceramic caps with low ESR as the loap capacitance (although schematic symbol shows electrolytic…
Other Parts Discussed in Thread: TPS40400 , PMP , TVP5158 Dear all,
I have problems when loading the VICP/VPSS/DSP firmware.
First, it looks extremely strange about the files size between those originally prebuilt in my purchased DVRRDK box and those…
Since this error is happen by chance or say system instable, I have re-work on the loop circuit value
but it not helping, the above waveform still happen by chance. (e.g. 2~3 times out of 10 enabling)
Here is my loop calculation table
7206.TPS40428…
Part Number: TPS40428 Hi Sir,
I am working with TPS40428 on my system, it is working and output 1V to FPGA constantly.
But at the same time the PMIC have a 520mV Vripple output and affecting other voltage rails, may causing failure on DRAM calibration…
