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  Barry Henderson

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

  LM2736: LM2736 failing - passing ~90 supply

  TI Thinks Resolved

  Part Number: LM2736 Good afternoon We have been using the LM2736 in some of our devices for a number of years now. A recent batch of circuit boards using this IC, has failed after a short period of operation. We have identified that the regulator...
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  WANG NING

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

  LM2736: How to use LM2736 to generate negative voltage supply

  • Resolved

  Part Number: LM2736 I think all step-down DC-DC converter can be used for generating negative
• 

  Juan Cerrudo

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

  LM2736: LM2736, voltage drop with high load

  • Resolved

  Part Number: LM2736 I used Texas Webench to design a power supply with an LM2736 (see attached
• 

  Robert Blattner

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

  RE: LM2736Y 10K enable resistor, why?

  Hello Matt, EN will function with low impedance to VIN. There are two issues to watch for while laying out your design: 1. EN should not exceed VIN by 0.3 V. Since the LM2736 is a high performance part, keep the parasitic inductance between VIN...
• 

  Matthew Findlow

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

  RE: LM2736Y (but buck in general). Can I use a reverse polarity protection diode in series with Vin?

  Thanks for your advice. I would like to use a schottky diode between the + supply and Vin pin. I'm a little concerned about the reverse leakage of the schottky though and whether the leakage current would allow a reverse voltage in excess of the...
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  Rodo

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

  LM2840: Inverting Buck-Boost Converter: -12vdc possible?

  Part Number: LM2840 Hi, I need a -12vdc output at about 50mA to drive some op-amps. I have a choice of Vin to be either unregulated 16vdc, 3.3vdc (from an LM2736 output) or 12vdc (from an LDO). I prefer to use an LM2840 or LM2841 or another LM2736....
• 

  Denislav Petkov

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

  RE: LMR14206 unstable output with no load

  Hello Magnus, What is the input voltage range that you need to support? Looking at the datasheet spec for the maximum duty cycle, it is 0.87 typical and 0.81 min. This means that in order to get 14V regulated output, minimum Vin is 14V/0.81 = 17.28V...
• 

  m.k

  • over 4 years ago
  • Japanese E2E (日本語コミュニティ)
  • アナログ （Analog) (Read-Only)

  Power : SEPICとは？ 昇降圧DCDCトポロジー

  SEPICは、Buck-Boost DCDC Topologyのひとつです。 回路設計は、少し複雑になりますが、降圧から昇圧までが シームレスな動作で、Modeの切り替わりが無く、降圧/昇圧 の移行時の、懸念がありません。 近似的には、、 　　　　Duty = ~Vout/(Vin+Vout)　なので Duty = ~50%　　　@ Vout=Vin Duty = ~66%　　　@ Vout=2Vin Duty = ~33%　　　@ Vout=Vin/2 ということになります。 　　　資料としては...

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