• 

  Andrejs Gasilovs

  • 1 month ago
  • Power management
  • Power management forum

  LM43603: Cff calculation

  • Resolved

  Part Number: LM43603 Hi everyone, I'm following the datasheet and trying to calcualte Cff value
• 

  Frank De Stasi

  • 23 days ago
  • Power management
  • Power management forum

  RE: LM5576-Q1: How to calculate the derating according to different ambient tempratures?

  Hello It is somewhat tricky to calculate the thermal performance. You could try to use webench, if that feature is enabled for this device. Also, the data sheet gives advice about what kind of thetaJA you can expect for the size of copper area ...
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  Ilian Chakarov

  • over 1 year ago
  • Power management
  • Power management forum

  LM43603: Input voltage slew rate

  TI Thinks Resolved

  Part Number: LM43603 Hi, we are using the LM43603 chip. The chip work according to the calculations, but there is a strange behaviour around Ven,when the slew rate is very low or the input voltage is 500 -300mV before Ven. 500mv below Ven (very...
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  Praveen Badiger

  • 24 days ago
  • Power management
  • Power management forum

  RE: WEBENCH® Tools/LM43601: 1.2A output current possible?

  Hi Stefan, LM43601 should be created up to 1A load current only. We will fix this issue on WEBENCH. Currently, the WEBENCH model only supports the Buck topology for LM43602 and LM43603. The IBB topology is not enabled and hence it does not allow you...
• 

  Thierry HAUSER

  • 6 months ago
  • Power management
  • Power management forum

  LM43603-Q1: PGOOD issue on large capacitor LOAD

  TI Thinks Resolved

  Part Number: LM43603-Q1 Hello, We use LM43603 as buck +24V => +13V with a very large capacitor loads (4700µF//4700µF). PGOOD is left floating . I would like to know if PGOOD pin enable Hiccup protection (it seems to be the case), and...
• 

  Carolus Andrews

  • over 1 year ago
  • Power management
  • Power management forum

  LM43603: Question about odd via and drill hole structure

  • Resolved

  Part Number: LM43603 Team, Can you explain the purpose of the vias and drill holes surrounding
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  K.Shidara

  • over 1 year ago
  • Power management
  • Power management forum

  LM43603: Efficiency difference btw pkg

  • Resolved

  Part Number: LM43603 Hi team Would you advise are there any efficiency difference btw PWP and DSU
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  Jason Fan

  • over 2 years ago
  • Power management
  • Power management forum

  LM43603: LM43603 damaged

  TI Thinks Resolved

  Part Number: LM43603 Hi TIers: I met a issue on charging board for the automotive, the LM43603 is used to convert the 12V to 5V for the external USB slave device. The schematic is below , The issue is that the LM43603 will be damaged during frequently...
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  Lin Zhao

  • over 2 years ago
  • Power management
  • Power management forum

  LM43603: LM43603 unstable output voltage

  • Resolved

  Part Number: LM43603 Hi, My customer met a urgent issue on LM43603 , during no load condition, IC
• 

  Sridevi K93

  • over 1 year ago
  • Power management
  • Power management forum

  RE: LM43603: LM43603 Circuit - Critical Issue in Board Bringup

  Hello, The problem is resolved. The value of capacitor on VCC pin was wrong as per design. So as per datasheet recommendation it was changed to 2.2uF, 10V and the now the regulator seems to be work fine thereafter. Thank you for the support.

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