• RE: LM2679: LM2679S-ADJ/NOPB Model Load Current Problem

  

  Ridge Lahti

  Closing thread due to inactivity. Best regards, Ridge

  • 4 days ago
  • Power management
  • Power management forum
Answered

• LM2679: Buck Switching Regulator goes in current limit without any apparent reason

  

  Phil Rittenhouse

  Resolved

  Part Number: LM2679 Tool/software: I'm hoping this thread will help the next person who searches for this issue. I ran into this problem after following the component selection guidance from the LM2679 datasheet. Most parts listed were obsolete so…

  • Resolved

  • 27 days ago
  • Power management
  • Power management forum

• LM2679: LM2679S-3.3/NOPB product problem

  

  yingjiao LI

  TI Thinks Resolved

  Part Number: LM2679 Hi We did an ultrasonic scan of this product and found that there were holes in the molding compound across the bonded wire region, and the layered pins in the bonded wire region were completely separated from the plastic seal. Could…

  • 10 months ago
  • Arm-based microcontrollers
  • Arm-based microcontrollers forum

• LM2679: Low effiency

  

  Christian Mackin

  TI Thinks Resolved

  Part Number: LM2679 We are only achieving 86% with an input voltage of 24V and an output of 12V. Worse yet, with the same input voltage we get even worse efficiency at 18V, approximately 83%. Is there a reference design that matches the efficientcy the…

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

• RE: LM2679: Component LM2679-5S dead after short circuit test

  

  Franck SIMON

  hello, I tried all your tests on my board and TI eval Board. There is a problem with my diode MBRB1060-E3/45. If I use the same eval board diode ( MBRD835L )my board is OK. I will try another diodes to know why there are a problem with my diode.

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

• LM2676: The different between LM2676 and LM2679

  

  Zhang Liang

  Part Number: LM2676 Other Parts Discussed in Thread: LM2679 Hi, We use the LM2676-ADJ for the DC/DC buck from 24VDC to 8VDC, and now, we use the LM2679-ADJ with the same design, but the LM2679 has no output voltage, so please refer to below LM2676-ADJ …

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

• LM2679: Ouput Varying with varying input for constant 12 v IC

  

  Lenin B

  TI Thinks Resolved

  Part Number: LM2679 Hi, We needed 12v from 24v supply so we are using the constant out LM2679SX-12 but when then inout voltage is slightly increasing let say 25/26 v the outpu is also increaseing from 12to16v can suggest any ideato rectifi this. WBDesign49_Bode…

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

• LM2679: LM2679S-3.3/NOPB

  

  Shreehari G P

  TI Thinks Resolved

  Part Number: LM2679 Hi, For our internal project we are using LM2679S-3.3/NOPB, LM2679SX-12 buck converters with TO-263 package . There is a center pad in these footprints should we connect it to ground pin of IC or should we keep unconnected?

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

• LM2679: LM2679S-3.3/NOPB

  

  Shreehari G P

  TI Thinks Resolved

  Part Number: LM2679 Hi, For our internal project we are using LM2679S-3.3/NOPB buck converter. Kindly review the attached schematics and let me know the comments if any.

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

• LM2679: the Ciss, Coss, Crss data of LM2679 internal DMOS power MOSFET

  

  Jack Li-SH

  TI Thinks Resolved

  Part Number: LM2679 Dear sir, In LM2679 datasheet, it just list out the rdson data, no Ciss, Coss, Crss of internal DMOS power MOSFET, can you share it with me and customer? Customer want to use it for Power loss calculation. Nice day! Regards, Jack

  • over 3 years ago
  • Power management
  • Power management forum

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