• RE: WEBENCH® Tools/LM25085: LM25085 EMC Issue

  

  Arief Hernadi

  Hi, How is your layout compared to webench? Here is one material that discusses layout www.ti.com/.../slyt614.pdf Also, here is some material about the filtering on EMI www.ti.com/.../snva489c.pdf Thanks -Arief

  • over 7 years ago
  • Power management
  • Power management forum

• LM25085: EMI - High Frequency Ringing Noise

  

  Nicholas Tyler1

  TI Thinks Resolved

  Part Number: LM25085 We are seeing c 200MHz ringing on a design using this part. Any advice on how to find and fix this? WebBench simulations are nice clean switching waveforms.

  • over 5 years ago
  • Power management
  • Power management forum

• LM25085: Design the Buck converter to zero/low loss at 12V In -> 12Vout

  

  Daniel Domurath

  TI Thinks Resolved

  Part Number: LM25085 Hello, For a project of mine the user is allowed to use either a 12V or 24V power adapter. Than I need to regulate the voltage if it's at 24V down to 12V. First I thought about using a normal Buck with NFET but It would be complicated…

  • over 4 years ago
  • Power management
  • Power management forum

• LM25085: Power supply not able to maintain voltage on output at higher input voltage range.

  

  Darwin Dowdie

  TI Thinks Resolved

  Part Number: LM25085 I used WEBENCH to create a power supply design for VIN 6V to 36V and VOUT 5.0V 3A. All the simulations looked good on WEBENCH. However in the real world the 5V output would drop to ~3.75V as you increase the input voltage to 18V~36V…

  • over 4 years ago
  • Power management
  • Power management forum

• LM25085: How to achieve the vout equare vin in LM25085?

  

  du zhang

  TI Thinks Resolved

  Part Number: LM25085 hello l use ti lm25085 to achieve the vin=9~36V and vout =12v/2.8A,the test reslute is Vin=15V, T=5.3us, Toff=1.3us. Vin=12V, T=24us, Toff=0.68us Vin=11.7V, T=36us, Toff=0.56us Vin=11.65V, 100% duty cycle. l want vin …

  • over 7 years ago
  • Power management
  • Power management forum

• LM25085: CCCV Realization

  

  hideyuki sakai

  Part Number: LM25085 Other Parts Discussed in Thread: LM5175 , Dear, Sir. My customer is applying LM5175 for Super Capacitor charging, so they are utilizing CCCV function. They are cos\dering the cost down system to change from LM5175 to others…

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

• LM25085: Strangely high ADJ current sink

  

  Ryan.Bishop

  TI Thinks Resolved

  Part Number: LM25085 Other Parts Discussed in Thread: LM5085 Hello, We are seeing the switcher go into what appears to be current-limiting at a lower current than expected. The design current limit threshold is 8.2A. We are seeing current limiting start…

  • over 5 years ago
  • Power management
  • Power management forum

• LM25085: LM25085SD: EMI Filter

  

  SRC

  TI Thinks Resolved

  Part Number: LM25085 Hi, We are using LM25085SD in our custom design. We are using two LM25085SD regulators to generate 3.3V and 5V power rail and both regulators are powered from same supply. Our System can accept 12V, 15V, 19V DC Input. We are able…

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

• LM25085: Burst or pulse mode at low loads

  

  Christopher Cardoza

  TI Thinks Resolved

  Part Number: LM25085 I have designed a circuit using this switching regulator and it seems to go into a mode which I can only describe as a pulse mode. This is a separate mode different to Continuous or Discontinuous mode. It happens more at low loads…

  • over 5 years ago
  • Power management
  • Power management forum

• RE: TINA/Spice/LM25085: The question about On-time for LM25085

  

  Eric Jin

  Hi Sam, thanks for your reply. I can't attach the TSC file on E2E forum. I sent a email for you. thanks. BR, Eric

  • over 7 years ago
  • Power management
  • Power management forum

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