• LM5019: Voltage at Vfb is showing as 1.288V.

  

  Charan Kumar Reddy K R

  TI Thinks Resolved

  Part Number: LM5019 We are using LM5019 in one of our designs. Voltage at Vfb is showing as 1.288V and Output voltage measured is 3.462 V. Required output voltage is 3.3V. Please let us know what could be the issue? Schematics of LM5019. R9 is replaced…

  • 6 months ago
  • Power management
  • Power management forum

• LM5019: Frequency Selection

  

  Neal Zhu

  TI Thinks Resolved

  Part Number: LM5019 Hi, LM5019,Modify the resistance of RON(PIN4), but the frequency does not change ,Is the frequency fixed? No load and full load,frequency does not change.

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

• LM5019: P2P replace LM5017 for lower Iout requirement?

  

  Jason Dai

  TI Thinks Resolved

  Part Number: LM5019 Other Parts Discussed in Thread: PMP7383 , , LM5017 Hello E2E, May I have your support to take a look whether customer could directly replace lm5017 by using lm5019 on PMP7383 reference design? Customer only require 3v3/0.1A at isolated…

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

• LM5019: Efficiency variation max/min

  

  Toshihiro Watanabe

  TI Thinks Resolved

  Part Number: LM5019 Hello, There is a efficiency graph in figure 1 of datasheet. When 48Vin 100mAoutput, we can read the efficiency is around 80%. In this configuration, how much efficiency is varied? We care about power consumption so we would like to…

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

• LM5019: The difference between LM5019 and LM34925

  

  K.Yaita

  Resolved

  Part Number: LM5019 Other Parts Discussed in Thread: LM34925 , Hi Team, It seems LM5019 and LM34925 is similar device but I believe the difference is the following. Is my understanding correct? - LM34925 is recommended for isolated fly-buck converter only. -…

  • Resolved

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

• LM5019: High & Low Side Cross Conduction

  

  hideyuki sakai

  Resolved

  Part Number: LM5019 Dear, Sir. LM5019 is a syncronous buck converter. My customer is concerning the high & low side cross condution under abnormal condition. So I would like to confirm followings; Please give your advice. 1. Does LM5019 have the…

  • Resolved

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

• LM5019: how do i run it with a 9 volt battery?

  

  Shmuel Lindkvist

  TI Thinks Resolved

  Part Number: LM5019 Other Parts Discussed in Thread: TPS62745 , TPS62125 how do i run it with a 9 volt battery? It only works with 14 volt and over.

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

• LM5019: Output volatage is higher than calculated value

  

  user4856186

  Resolved

  Part Number: LM5019 Other Parts Discussed in Thread: TPS23861 , Dear sirs, I am making a application boad using LM5019 for supplying isolated 3.3v for TPS23861. I followed same schematics as TPS23861EVM-613; My schematic is as followw; The values of L…

  • Resolved

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

• LM5019: About bootstrap capacitor

  

  Charles Jeon

  Resolved

  Part Number: LM5019 Hi team. My customer wants to apply the LM5019's bootstrap capacitor to 470pF. Does the problem occur when the bootstrap capacitor is applied below 10nF ? The System condition is input voltage 54V and the output voltage 3.3V. …

  • Resolved

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

• LM5019: Iin operating current (Max)

  

  higa daisuke

  Resolved

  Part Number: LM5019 Hi support team. Please give me the information about the maximum value of Iin operating current(Non-switching). Best regards. Higa

  • Resolved

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

Didn't find what you are looking for? Post a new question.