BQ25015: LDO operation when charger is disabled

Craig Rackstraw

Part Number: BQ25015
Other Parts Discussed in Thread: BQ25120A

Hi,

Please could someone confirm if the LDO function continues to operate (EN pin held high) if the Charging Function is disabled (CE pin held high)?

Thanks!

over 7 years ago

0 Craig Rackstraw over 7 years ago

Prodigy 130 points

Just bumping this as I need to understand how these two enable pins interact (CE and EN). The datasheet is not clear.

I would like it to be the case that if the charging function is disabled the LDO could still operate.

Many thanks!

0 Pearl Cao over 7 years ago in reply to Craig Rackstraw

TI__Prodigy 180 points

I think you meant the DCDC output, not the LDO output. If the EN pin is high, there should be DC-DC output.
You may want to take a look at bq25120A, which integrates a linear charger, a DC-DC buck and a LDO with I2C. It's a newer device.

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BQ25015: LDO operation when charger is disabled