• LM5008A: NOPB Switch Node Question

  

  Denny Huang

  Part Number: LM5008A Dear team Customer have some question, could you give some recommend? We found the following problems when measuring Switch nodes. As shown in the attachment, glitch will occur under full load, but no glitch occurs under light load…

  • 16 hours ago
  • Power management
  • Power management forum
Answered

• LM5008A: Component blows up (from dv/dt?)

  

  Mattias Rahm

  Resolved

  Part Number: LM5008A Other Parts Discussed in Thread: LM5008 Hi WIthout pre-charge before connecting, the component blows up above above a certain input voltage (the input pin burns up, and/or top cover burns up close to input pin). Output voltage instantly…

  • Resolved

  • 1 month ago
  • Power management
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Answered

• RE: LM5008A: Device not starting up

  

  Nicolai Fransen

  Resolved

  Hi Ankit, We have used the QuickStart Calculator as you suggested, and almost all the components is within the recommended values. The biggest difference is with the inductor, where we use 270uH and the calculator suggest a minimum of 666uH. With the…

  • 11 months ago
  • Power management
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• RE: WEBENCH® Tools/LM5008A: WEBENCH® Tools/LM5008A: Too much Input Capacitance?

  

  Ethan T

  Hi James, Yes i would say that the LMR36503-Q1 would perform better than the LM5008A at light loads in terms of efficiency and able to drive higher loads without any issues. I would also say it depends on thermal dissipation to make sure that the junction…

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

• LM5008A: Max voltage on SW pin

  

  Leo Ruyven

  Resolved

  Part Number: LM5008A Goodday In the datasheet at the section absolute max ratings is written SW to GND (Steady State) -1V Can you tel me what the momentary max rating is on this pin. If I measure in my circuit i see a value witch is approx 1.2V, can you…

  • Resolved

  • over 1 year ago
  • Power management
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• LM5008A: LM5008ASDX/NOPB

  

  Scaler_cao

  TI Thinks Resolved

  Part Number: LM5008A I used LM5008A designed a circuit ,used a application of TI MD015A's example to convert 24v to 12v,but my inductor is hot soon ,i don't know why ,how can i correct this design?

  • over 1 year ago
  • Power management
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• LM5008A: About Minimum Time off in COT

  

  GARAM AN

  TI Thinks Resolved

  Part Number: LM5008A Hello, I'm looking the LM5008A datasheet, and I could find the value of "Minimum Time off" which is 300ns. I do not understand what it is even I read whole datasheet. COT is working when Vfb goes lower than Vref, switch…

  • over 1 year ago
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• LM5008A: No Vout and VCC

  

  Elisha Tarroza71

  Part Number: LM5008A Hello, Can you please help advise what else we can check on LM5008A? It has no VOUT and VCC. We've checked the RT/SD pin and the voltage is approximately 23.5 V，and VIN is approximate 24.2V. We've tried with another chip, but it…

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

• LM5008A: efficiency is lower than expected

  

  Howard Zou

  Resolved

  Part Number: LM5008A My customer is using LM5008A to generate 5V, load is 800mW, when input is 10V, the input power is 1W, when input voltage is 85V, the input power is 5.5W, which is obviously lower than the efficiency curve in datasheet. Are there any…

  • Resolved

  • over 1 year ago
  • Power management
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• DRV8350R: Integrated LM5008A buck regulator

  

  Rolf Lerch

  TI Thinks Resolved

  Part Number: DRV8350R Other Parts Discussed in Thread: DRV8350 , LM5009A , LM5008A , LM5008 if the Input voltage on the Vin is above 44V the switching node shows an unexpected behaviour. Can you explain it? DRV8350_TI_Support.docx

  • over 1 year ago
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