• LM20154: NC pin connection and Design spreadsheet

  

  Satoshi

  TI Thinks Resolved

  Part Number: LM20154 Please let me know about two points below about LM20154 design. ①Datasheet P2 is described about "NC pin must be connect to GND". 　What is occur abnormal operation on NC pin floating condition? 　Is LM20154 occur only noise?…

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

• WEBENCH® Tools/LM20154: The reason for Vout oscillation

  

  Satoshi

  TI Thinks Resolved

  Part Number: LM20154 Tool/software: WEBENCH® Design Tools I attached Webench design for LM20154, simulation results was Vout oscillation. If there found correction points or any bug, please let me know. webench_design_LM20154.pdf webench_design_LM20154_startup…

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

• LM20154 NC pin not connected to GND

  

  Jaden Ghylin102047

  We are seeing failures of this part where the PVIN shorts to gnd and the part smokes. The NC pin (5) in the design is floating. Could this cause failure? -Jaden

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

Didn't find what you are looking for? Post a new question.