TPS74901: Review schematic and design

Hailiang Zhang

Part Number: TPS74901

Hi Team,

Could you pls review below schematic?

Also, under the current design parameters (Vin=5V, Vout=3.3V), although Iout<3A, VDO seems to be at risk, could you please help to check?

Regards，
Hailiang

0 Erin Thibeault over 2 years ago

Hi Hailiang,

It looks like this is configured per the datasheet. V_Bias dropout voltage will be less than 1.75V, and should not be a concern.

What current are you driving?

Best,

Erin

0 Hailiang Zhang over 2 years ago in reply to Erin Thibeault

Hi Erin，

The Iout is 0.2A. The engineer told me that the maximum value will not exceed 0.5A.

Best,

Hailiang

0 Erin Thibeault over 2 years ago in reply to Hailiang Zhang

Hi Hailiang,

Thank you. The device should not enter thermal shutdown under these conditions.

Best,

Erin

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