Part Number: TPS40009 Hi,
Our end customer feedback us TPS40009DGQR has the uneven chip pin issue, please kindly review below picture and check with your product line if there are any other customer feedback the issue, thanks.
Part Number: TPS40009 Other Parts Discussed in Thread: TPS40005 , , TPS40003 , TPSM82866A Dear TI power team, At the company, we have a product that uses the TPS40009 in a buck regulator designed to deliver 3.3V / 5A. Currently, there is no stock available…
Part Number: TPS40009 Other Parts Discussed in Thread: TPSM82480 , TPS62480 , Hi :
When customers use TPS40009DGQR, Vin is 3.3V, output is 1.0-1.1V, current value is 4.5A. But after mass production, customers found that the PIN8 output voltage of the chip…
Part Number: TPS40003 Other Parts Discussed in Thread: TPS40009 , , TPS40001 Dear power team,
TPS40003 is supposed to be P2P with TPS40003, but on TPS40003 we have a 3.3Ohms resistance between SW and MOSFET. What is the purpose of this resistance? What…
Part Number: TPS546C20A Other Parts Discussed in Thread: TPS546C23 , I am facing two issues with TPS546C20A on a single phase design.
Input: 12V
Output: 0.845V 30A
Issue 1: On the measured loop gain, at the low frequency region (1kHz to 4kHz, see Case…
Hi Jospeh,
Thanks for your inputs.
I have updated the power calculator and selected suitable Feedback and compensation network. Please review the schematics and power calculator bode plots and provide if any review comments. I would like to release the…
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.…
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 verify…
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
