• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 517 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ25150: PMID 3.3V volt output?

SmartEnrg
Expert 1165 points
Part Number: BQ25150
Other Parts Discussed in Thread: PMP21884, BQ25155

Hi,

As I understand PMID is the regulated output from BQ25150, and where VIN and Batt paths merge to feeds systems load.
Referring to ref design (PMP21884) below - as I circled in red PMID listed under Inputs(?) states the range for it as 3V-6V.

The question/s I have -
1) Is it actually possible to get 3.3V regulated output from BQ25150, if so what am I supposed to do to achieve this? 
2) If not, which other Li-Ion charger chip/s would you recommend; with power path, i2c, 1.5-2A regulated 3.3V output?

Thanks.

  • 0
    TI__Mastermind 21590 points

    Hello,

    The image you posted did not properly upload.

    The BQ25150 does not regulated the input voltage to PMID. It's just a switch. The BQ25155 has a regulated PMID pin with output option of 4.2V to a switch and also a battery voltage offset. To get 3.3V, with up to 2A, i'll suggest using a DC/DC converter like TPS6208833