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Sr. Design Engineer

2 days ago

Sr. Design Engineer

Posted byvijay.moghe@flex.com15 points 2 replies
0 upvotes

Hi,

I was looking at using the DA9021 PMIC Charger IC for one of our current projects. I noticed that it is mentioned that it is not recommended for new designs. I wanted to know why that is the case?

Do you have any other PMIC Charger ICs with integrated Buck Regulator with the following specifications?

Input Voltage : 5V

Buck Output Voltage: 3.3V

Charge Current : Programmable up to 500 mA

Battery Type : Lithium Polymer/ Lithium Ion

Thanks,

维贾伊

2 days ago

ED_Dialog

Hello Vijay,

Could you confirm some requirements for me.

I take it, you are looking for a single cell charger, with a programmable charge current of 500mA?

Due to the charge current, a linear charger would be acceptable?

The device also needs to have a 1 x 3V3 buck only?

Kind regards,
Elliott

2 days ago

vijay.moghe@flex.com 15 points

Hi Ellicot,

The charger needs to have at least one integrated buck switching regulator with a 3.3V output.

If there is more than 1 regulator, that is fine. But we cannot use an LDO for our application.

一个电池充电器的需要s to have a programmable charge current of 500 mA or less.