• LM20145DESIGN-CALC: Design spreadsheet seems to be suggesting small inductor giving a very high ripple factor

  

  Relay Man 2

  TI Thinks Resolved

  Part Number: LM20145DESIGN-CALC Other Parts Discussed in Thread: LM20145 Hi, I am looking to design a 3.3V to 1.8V 0.5A max SMPSU I have been looking at the LM20145. The design spreadsheet is suggesting a 0.45uH inductor at a switching frequency of…

  • over 6 years ago
  • Power management
  • Power management forum

• RE: LM20145 quiescent current with switching state

  

  Haifeng Fan

  LM20145 has PVIN pin(power stage input supply) and AVIN pin(Bias input supply to the chip), the input currents to both pins really depend on the application conditions when the converter is switching. If the customer wants to know the total input current…

  • over 12 years ago
  • Power management
  • Power management forum

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