• LMQ66430-Q1: PG behaviour in simulation does not agree with the datasheet

  

  Michael Linder

  TI Thinks Resolved

  Part Number: LMQ66430-Q1 Hello, The datasheet of the LMQ66430-Q1 states that Open-drain power-good flag output. Connect to suitable voltage supply through a current limiting resistor. High = power OK, low = power bad. This pin goes low when EN = low…

  • over 1 year ago
  • Power management
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Answered

• LMQ66430-Q1: LMQ66430-Q1 data sheet in the Orderable Part Number

  

  bhupathi m

  Resolved

  Part Number: LMQ66430-Q1 Hello Team, LMQ66430-Q1 data sheet in the Orderable Part Number column, I could see LMQ66430MC3RXBRQ1 is used for fixed and Adjustable version can you explain me how this IC can understand is it fixed or adjustable version from the…

  • Resolved

  • over 1 year ago
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Answered

• LMQ66430-Q1: LMQ66430-Q1 SIMetrix simulation

  

  Febriyanti Panjaitan

  Resolved

  Part Number: LMQ66430-Q1 Other Parts Discussed in Thread: LMQ66430 , Hello, Is the PSpice model of LMQ66430 only supported by PSpice for TI? I can't run the simulation with SIMetrix environment even though I succeed to import the library to SIMetrix.…

  • Resolved

  • over 1 year ago
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• LMQ66430-Q1: LMQ66430

  

  sudharshana panduranga

  TI Thinks Resolved

  Part Number: LMQ66430-Q1 Hello, We are using LMQ66430-Q1 buck regulator. Is it possible to provide Ibias of the IC? It's required to calculate Iqvin at no load. Thank you, Sudharshana

  • over 2 years ago
  • Power management
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Answered

• LMQ66430-Q1: Average Model

  

  Randy Hirmiz

  Resolved

  Part Number: LMQ66430-Q1 Hello, Does anyone have an average Pspice model for this device? Or a Simplis model? I am looking to plot the phase and gain plots of the device.

  • Resolved

  • over 1 year ago
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Answered

• LMQ66430-Q1: External CBOOT

  

  Masatoshi Oguri

  Resolved

  Part Number: LMQ66430-Q1 Hello, In the “ 9.2.1.2.6 CBOOT” in p.30 of the datasheet, it is implied there might be a case that requires an external CBOOT. In what situation an external CBOOT comes necessary? What improvement will it provide? …

  • Resolved

  • over 1 year ago
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• LMQ66430-Q1: Current consumption at no load

  

  sudharshana panduranga

  TI Thinks Resolved

  Part Number: LMQ66430-Q1 Hello, What will be the efficiency at load current is around 15uA? We are expecting efficiency >80% Is it possible? To achieve quiescent how MODE pin has to be implemented? Regards, Sudharshana

  • over 1 year ago
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Answered

• LMQ66430-Q1: usage of NC pins.

  

  chen xuelong

  Resolved

  Part Number: LMQ66430-Q1 Hi TI engineer, For the NC pins of LMQ66430-Q1, pin 9 and pin 12 are connected to GND in EVM design, but the others are floating. Is there any difference between pin 9/12 and the other NC pins? And how could I connect these NC…

  • Resolved

  • over 1 year ago
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Answered

• LMQ66430-Q1: customer connect the NC to GND

  

  Yuan Tan63

  Resolved

  Part Number: LMQ66430-Q1 Hi, Is there any impact like EMC if customer connect NC to GND? Thank you B&R Yuan

  • Resolved

  • over 1 year ago
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Answered

• LMQ66430-Q1: FPWM light load operation CCM? or DCM?

  

  Masatoshi Oguri

  Resolved

  Part Number: LMQ66430-Q1 Hello, There are 2 contradicting descriptions for FPWM light load operation in the datasheet shown below. Which one of CCM and DCM is correct? p.20: 8.4.3 Active Mode • FPWM mode – light load operation: Discontinuous conduction…

  • Resolved

  • over 1 year ago
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