TPS54526: Generation of 1.1V from 5V and VREG value at vin=5V

prasanna kumara G

Expert 1585 points

Part Number: TPS54526
Other Parts Discussed in Thread: TPS62130

Dear Team,

We are planned to use TPS54526 for generating 1.1V from Vin=5V, Is it possible?

If it is possible what will be the value of VREG if Vin=5V.

Is it possible to use PG (pull up with VREG) to use as enable for TPS62130(for power sequencing).

Regards,

Prasanna G

over 8 years ago

0 JohnTucker over 8 years ago

TI__Guru**** 191445 points

Yes you can generate 1.1 V output from 5 V input with TPS54526. The VERG5 voltage will be lower than normal as Vin is less than 6 V. It is generated internally by an LDO. So the VREG5 voltage will be 200 mV or so less than Vin. It is ok so long as VREG5 is above the UVLO range. You may use PG for power sequencing.

0 prasanna kumara G over 8 years ago in reply to JohnTucker

Expert 1585 points

Hello John,

Thank you for the quick response.

Regards,
Prasanna G

Power management

Power management forum

TPS54526: Generation of 1.1V from 5V and VREG value at vin=5V