MP2313 generate negative voltage? 5v to -5v, or 5v to -10v?

DC-DC Power Converters
1

MP2313 generate negative voltage? 5v to -5v, or 5v to -10v?

can I use the IBB configuration to do this?

If yes, how do make the connection? VCC–0.22uF-(-5v) ?

Can you provide a sample schematics please.

2

can anyone help me ?

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Hi @andrewxiang ,

An IBB configuration should work with the MP2313.

You should have capacitors from VCC to GND, VCC to negative VOUT, and GND to negative VOUT.

This forum post should help in designing an IBB with a buck converter. Note that the MPS buck converter used is different, but the principal should be the same: MP2460: inverting buck regulator configuration - DC-DC Power Converters - Monolithic Power Systems’ Technical Forum

Thanks,
Rubas