TPS22915: TPS22915 tr spec

Hardy Xue

Part Number: TPS22915

Hi Team,

My customer would like to know what is VOUT rise time (tr) with following condition. Or, could you provide it or tell us how to calculate it. Thanks.

Condition:

Vin=1.8V

CIN=1uF

Vout=1.8V

CL=4.7uF

RL=1M

Best regards,

Hardy

11 months ago

0 Patrick Shalton 11 months ago

TI__Mastermind 18310 points

Hi Hardy,

I'm looking into this and will update the thread when I have an answer.

Thanks,

Patrick

0 Hardy Xue 11 months ago in reply to Patrick Shalton

TI__Expert 3600 points

Hi Patrick,

Any update. customer is pushing this data. Or, we may lose this opportunity.

Best regards,

Hardy

0 Patrick Shalton 11 months ago in reply to Hardy Xue

TI__Mastermind 18310 points

Hi Hardy,

Thanks for your patience, I will test this on an EVM tomorrow morning Dallas time. Is the customer looking at variant B (fast rise) or C (slow rise)?

Thanks,

Patrick

0 Patrick Shalton 11 months ago in reply to Patrick Shalton

TI__Mastermind 18310 points

Hi Hardy,

I have 2 EVMs with variant C. I will test the variant C rise time tomorrow morning.

Thanks,

Patrick

0 Patrick Shalton 11 months ago in reply to Patrick Shalton

TI__Mastermind 18310 points

Hi Hardy,

Thanks for your patience. I tested these conditions on an EVM yesterday and obtained the results shown below. Please note that this should serve as design reference only, and this value is not guaranteed as they are not in the data sheet.

Trise is about 500us.

Thanks,

Patrick

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TPS22915: TPS22915 tr spec