TPS63000: Dynamic output setting

Tommy Tzeng

Genius 5025 points

Part Number: TPS63000

Hi Sir,

can TPS63000 dynamic adjust the output voltage?

customer in/out condition as follows:

Vin=3.6v, Vout1=3.3v

Vout=5v

over 3 years ago

0 Jasper Li over 3 years ago

TI__Mastermind 46905 points

Hi Tommy,

yes. such circuit is Ok to change the output voltage

0 roger chang over 3 years ago in reply to Jasper Li

Prodigy 20 points

Hi Tommy:

If it is initially set to 3.3V output, it cannot be dynamically switched to 5V output. Similarly, if it is set to 5V output, there is no way to dynamically switch to 3.3V output. Is it possible to dynamically switch buck and boost mode?

0 Jasper Li over 3 years ago in reply to roger chang

TI__Mastermind 46905 points

Hi Roger,

the device can switching its operation mode depending on the VIN/OUTPUT condition. so the VOUT can dynamically switch from 3.3V to 5V or from 5V to 3.3V through adjust the FB network.

0 roger chang over 3 years ago in reply to Jasper Li

Prodigy 20 points

Hi Jasper :

Now, we found that the output of 3.3V cannot be switched to 5V through the control MOSFET. It is normal if it use to output of 3.3V or 5V by only by FB resistance setting without MOSFET control . We want to sure whether the TPS63000 can continuously switch between boost and buck mode? could you contact me by the phone ?

0 Jasper Li over 3 years ago in reply to roger chang

TI__Mastermind 46905 points

Hi Roger,

i'm try to understand the issue in your circuit.

roger chang said:
we found that the output of 3.3V cannot be switched to 5V through the control MOSFET

is the question that you can't use a MOSFET or the buck-boost didn't work as expectation.

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TPS63000: Dynamic output setting