Answered

• LM26420-Q1: SW waveforms appear overshoot and undershoot

  

  kaixun

  Resolved

  Part Number: LM26420-Q1 Other Parts Discussed in Thread: LM26420 , Hi LM26420-Q1 When testing the output SW of LM26420, the test found that the SW waveform overshoot and undershoot are very serious, the undershoot reaches 1.05V, the overshoot is 0.7V…

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  • over 4 years ago
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• WEBENCH® Tools/LM26420-Q1: Need simulation model for LM26420

  

  user3498266

  TI Thinks Resolved

  Part Number: LM26420-Q1 Tool/software: WEBENCH® Design Tools Hi, I want to do simualtion on LM26420 , but there is no any simulation model and no webench support, who can provide me the simulation model or alternative simulation model,thanks!

  • over 6 years ago
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• LM26420: 3.3V Output with Input between 3.0V and 4.2V

  

  Brenton Yiu

  TI Thinks Resolved

  Part Number: LM26420 I'm looking to use the LM26420 in a design. The input voltage will be from 3.0V to 4.2V and I would like the output voltage to be 3.3V. Will this part work for my design requirements?

  • over 4 years ago
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• RE: LM26420-Q1: LM26420-Q1 EMC- Conducted emissions from components/modules – current probe method

  

  Juergen

  Hello Zanlin, There is no 550kHz version of LM26420 available which has been qualified for Q100. As you already figured out with the measurement data you are showing above your input filter/input capacitor network works better for the lower (switching…

  • over 6 years ago
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Answered

• WEBENCH® Tools/LM26420-Q1: LM26420-Q1 Efficiency problem

  

  Chiha khalil

  Resolved

  Part Number: LM26420-Q1 Tool/software: WEBENCH® Design Tools Hi, I used LM26420-Q1 as dual step-down DC/DC converter with 1.8V & 3.3V output voltage. I have problem of efficiency (60%) with the outpout voltage 2 (1.8V) !!

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  • over 6 years ago
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Answered

• LM26420-Q1: the calculation of the D1&D2 in LM26420-Q1 Detailed Design Procedure

  

  user4681182

  Resolved

  Part Number: LM26420-Q1 Other Parts Discussed in Thread: LM26420 HI There is an example to calculatie the D1 and D2 in LM26420 datasheet, but i can not get the same result. would you mind to explain the detail calculation for me? TKS!!

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  • over 6 years ago
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Answered

• RE: LM26420-Q1: LM26420-Q1

  

  JohnTucker

  Resolved

  Ingmar, I do not believe LM26420 offers a forced discharge function. If I find out differently I will post it here.

  • over 7 years ago
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• LM26420-Q1: Power Section Review

  

  Dineshkumar R

  TI Thinks Resolved

  Part Number: LM26420-Q1 Hi, Need a review on LM26420Q1XMHX/NOPB part. Vin -5V Vout1 - 3.3V Vout2 - 1.2V Fsw - 2.2MHz Iout1 - 1.21A Iout2 - 1A Based on above details, I have updated those values in webench, Inductor values shows as 3.3uH…

  • over 4 years ago
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• LM26420-Q1: SHORTING of OUTPUTS

  

  GANESH

  Part Number: LM26420-Q1 Hi Everyone, LM26420-Q1 has 2 voltage outputs. I am planning to use the part with MPN: " LM26420Q1XMH/NOPB " Pl. suggest me whether I can short 2 outputs, so as to cater the high load (which is >2A)? If YES, any caution…

  • over 4 years ago
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Answered

• LM26420-Q1: When EN1/EN2 goes Low, how about PG1/PG2?

  

  Masatoshi Oguri

  Resolved

  Part Number: LM26420-Q1 Hello, When EN1/EN2 goes Low, what behavior is expected for PG1/PG2? If the Vout is still high enough, will PG1/PG2 keep high even if EN1/EN2=Low? Ot will it be Low immediately when EN1/EN2 goes Low regardless of FB1/FB2 voltage…

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  • over 4 years ago
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