Other Parts Discussed in Thread: TPS546D24A, TPS546A24A
Hello， I am using TPS546B24A as FPGA core voltage supply，but it seems that TPS546B24A is‘t work correctly.After I set pin 27(EN/UVLO) High, pin 1(PGD/RST_B) remains LOW,and output voltage is shown in the figure below.
The resistance value is calculated with “TPS546D24A_TPS546B24A_TPS546A24A_ExcelCalculator_SchematicLayoutChecklist.xlsx",as shown below:
MSEL1 UP 2.37K（actual soldering 2.2K+160ohm 1%），DOWN 21.5K（actual soldering 18K+3.6K 1%）;
MSEL2 UP OPEN，DOWN 10K 1%;
ADRSEL UP OPEN，DOWN 10K 1%;
VSEL UP OPEN ,DOWN 31.6K（actual soldering 30K+1.5K 1%）
Please help me find out where the problem is.The following attachment are relevant circuit and xlsx document.
Your answer will be very helpful.