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Dear team,
My customer would like to use TPSM33625 for their pre-regulation, 15V to 5V/2A.
Please review below customer schematic and concept.
As you can see above schematic, The GND of input voltage(15V, SMPS output) is AGND, but the GND of TPSM33625 is DGND.
They would like to connect AGND and DGND using Bead(MPZ1608S601A).
Please review above schematic and concept of GND connection. And let me know your opinion regarding this.
Thank you.
Hi Dino,
As there is no input cap integrated in the module, it's suggested to put C1 and C2 between Vin pin and DGND. Otherwise there will be large Ldi/dt on the bead and make Vin of the chip unstable.
Regards,
Hongjia