TPS546D24A: Schematics verification

Nachiketh Karanth

Intellectual 530 points

Part Number: TPS546D24A

Hi,

Please verify the schematics and provide feedback.

/cfs-file/__key/communityserver-discussions-components-files/196/5460.TPS546D24ARVFR.pdf

Thanks

over 1 year ago

0 Nachiketh Karanth over 1 year ago

Intellectual 530 points

Vin - 5V, Vout - 0.85V

0 Joseph Conrad over 1 year ago in reply to Nachiketh Karanth

TI__Expert 7860 points

Hi Nachiketh,

Can you please fill out the design calculator and return: SLURB01 Calculation tool | TI.com

This will help me verify the design meets your requirements.

Thanks,

Joseph

0 Nachiketh Karanth over 1 year ago in reply to Joseph Conrad

Intellectual 530 points

Hello Joseph,

Please find the updated document.

/cfs-file/__key/communityserver-discussions-components-files/196/0602.TPS546D24A_5F00_TPS546B24A_5F00_TPS546A24A_5F00_ExcelCalculator_5F00_SchematicLayoutChecklist_5F00_20200626.xlsx

Thanks

0 Joseph Conrad over 1 year ago in reply to Nachiketh Karanth

TI__Expert 7860 points

Hi Nachiketh,

1) I would recommend you adjust your comp code to 4 based on the design calculator to keep the ILOOP bandwidth in the correct range. This will change your MSEL1 resistor values.

2) MSEL2 resistor to GND should be FLOAT instead of tied to AGND.

3) VSEL resistor should be 31.6k Rbot and 105k Rtop according to the spreadsheet.

4) ADRSEL resistor should be 82.5k Rbot and FLOAT Rtop.

Other than that I think the design looks good to me.

Thanks,

Joseph

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TPS546D24A: Schematics verification