TPS53219A: TPS53219A with CSD87335Q3D Application Question

Kuo John

Part Number: TPS53219A
Other Parts Discussed in Thread: CSD87335Q3D

Hi Team,

I plan use TPS53219A with CSD87335Q3D to replace NB679.

May I know we can provide 5VDC for VDD pin of TPS53219A ? since our input voltage around 24V+-5%, so we need to use system 5VDC supply for TPS53219A.

over 7 years ago

0 Mathew Jacob1 over 7 years ago

TI__Expert 5910 points

John,

I would recommend using the internal regulator since its a 6V regulator(ldo output) and you will get better efficiency. The abs max of the VDD pin is 28V so I would not be worried about the 24V +5%.

Regards,
Mathew

0 Kuo John over 7 years ago in reply to Mathew Jacob1

Expert 1075 points

Hi Sir,

I'll modify schematic. VDD connect from EXT_APDIN change to on board 5VDC.

Regards,
John

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TPS53219A: TPS53219A with CSD87335Q3D Application Question