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TPS61221: The output negative voltage.

Guru 10465 points
Part Number: TPS61221
Other Parts Discussed in Thread: LMR70503, TPS62745

Hi team,

Could you give me your advice about the output negative voltage?

My customer wants to output 3.3V negative voltage with 3.3V input.
The output current is very low(Around 1mA or less), so we need a super very low Iq.

Can we use TPS61221 on our situation?
Or, do you have any device that it can be achieved?