Part Number: TPS40170 Please help to apply the excel file(TPS40KType III L TPS40KType III Loop Stability kVenable_sluc263c-071312.xls oop Stability kVenable_sluc263c-071312) detail calculating formula and lock password for our reference?
Part Number: TPS40170 Customer found the output response issue during Dynamic load test as below diagram.
We tried to use the TPS40170 design tools for R/C compensation calculation. But as a test result, we found there is a oscillation on output voltage…
Amir,
I made a couple last tweaks to your compensation. See the enclosed. Webench is supposed to maintain up to date libraries, but who knows ? TPS56221_final-1.xls
Part Number: TPS40057 Hi,
I am considering TPS40057 for VCOM of LCD circuit. I will attach the circuit diagram and calculation result I created. The constants of the circuit diagram are provisionally input. The final constant value is still under consideration…
Part Number: TPS40057 Hi,
I am considering a sink circuit using TPS40057. Operating condition = input 12 V ± 10%, output 2.5 V, output current -1 A (sink only) Used as power supply for LCD Vcom. The circuit constants are determined based on the calculation…
Sebastian ,
Can you please provide input and inductor current waveform when the output goes low ?
Further here are few comments on your layout and Schematic :
1. I dont see any decoupling cap on Vin pin of the device . Please place a cap as close…
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…
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…
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…
