TLV61220: What if Vin > Vout?

AnBer

Part Number: TLV61220
Other Parts Discussed in Thread: TPS61089,

Team,

-Can the TLV61220 support pass-through like TPS61089?
https://e2e.ti.com/support/power-management/f/196/t/806364

-What will happen if Vin > Vout (for example: Vin: 3.35V or 3.4V / Vout: 3.3V)?
What voltage will be on VOUT and will the DCDC source current for the load?

-What workaround do you advise?

Thanks in advance,

over 5 years ago

0 Jasper Li over 5 years ago

TI__Mastermind 46905 points

Hi Anber,

please refer to this FAQ

https://e2e.ti.com/support/power-management/f/196/t/695621?tisearch=e2e-quicksearch&keymatch=FAQ%20tps61220

What is input voltage range, VOUT and loading for this application?

0 AnBer over 5 years ago in reply to Jasper Li

TI__Mastermind 30150 points

Hi Jasper,

Vin is changing as it is based on 2x AAA battery.
So it starts at Vout max = 3.4V and go down gradually.

Vout is 3.3V. Issue is present as long as Vin is > 3.35V.

I am not sure yet of the load/Iout.

0 Jasper Li over 5 years ago in reply to AnBer

TI__Mastermind 46905 points

Anber,

I closed the post as we had discussed the issue through email.

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TLV61220: What if Vin > Vout?