TPS548A28: TPS548A28 PG pin

dimitry chen

Expert 1085 points

Part Number: TPS548A28

Tool/software:

my current design

Vin is 5V , but EN is low , and VCC is also 0v. and PG is pull to 3v3.

What is PG behavior is this situation ?

I am currious will be PG clamp to 0.9V even Vin is 5V.

0 Ryan Chen 14 days ago

Hi Dimitry,

If VIN is 5 V and EN is 0 V, and PG is pulled up to an external 3.3V it will be clamped low.

Best,

Ryan

0 dimitry chen 14 days ago in reply to Ryan Chen

Expert 1085 points

Hi Ryan

Is clamped low behavior as below define ( voltage around 0.7~1V)

+1 Ryan Chen 13 days ago in reply to dimitry chen

Hi Dimitry,
Yes.

Best,

Ryan

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