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The operation of a buck-boost

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harrytrinh

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Hi everyone!

Can you guys tell me about the operation of the buck-boost in tha case that both buck mode or boost mode has on time very small. For example, if Vout=3.3 Vin=3.2 or Vin=3.4. If vin=3.4 the buck-boost can work in low drop out mode but I thinh that it can not work at high output surrent. Tell me more about this point.

Thanks in advance!
 

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