TPS61021A: Current leakage if using TPS22917 for substitute of boost convert

Jerry Hsu3

Part Number: TPS22917
Other Parts Discussed in Thread: TPS61021A

Hi Sir,

I am in charge of a IoT project. I plan to use TPS22917 to bypass battery voltage while power saving mode.

Here is the schematic, the boost convert(TPS61021A) will be cut-off if the system stays PSM mode, then battery will provide the power directly through TPS22917.

I want to make sure whether the current leakage occurs from TPS61021A Vout?

over 4 years ago

0 Shreyas Dmello over 4 years ago

TI__Mastermind 32650 points

Hi Jerry,

Could you please rephrase the question? I am not sure what you are asking about. Is this a question on TPS22917 or on TPS61021A?

Thanks,

Shreyas

0 Jerry Hsu3 over 4 years ago in reply to Shreyas Dmello

Prodigy 150 points

Hi Shreyas

I want to know if pull EN pin of TPS61021A down, then pull ON pin of TPS22917 up. Whether the power 3V8 will sink into TPS61021A?

0 Shreyas Dmello over 4 years ago in reply to Jerry Hsu3

TI__Mastermind 32650 points

Hi Jerry,

I have moved this thread to the team responsible for the TPS61021A.

Thanks,

Shreyas

0 Zack Liu over 4 years ago in reply to Shreyas Dmello

TI__Mastermind 34231 points

Hi Jerry,

In your condition of TPS61021A EN pin down, the TPS61021A leakage current into VOUT pin is 1uA (TYP).

0 Jerry Hsu3 over 4 years ago in reply to Zack Liu

Prodigy 150 points

Hi Zack

Thanks for your confirmation.

Power management

Power management forum

TPS61021A: Current leakage if using TPS22917 for substitute of boost convert