Answered

• LM4140: GND connection

  

  Taketo Sato

  Resolved

  Part Number: LM4140 Hello team, What will happen if we don't connect pin-1,7,8 to GND and left these pins open? I am wondering if LM4140 can work with footprint made for LT1461. Best regards,

  • Resolved

  • 11 months ago
  • Power management
  • Power management forum

• LM4140: Why output voltage will change when output sink current

  

  Stanley Xu

  TI Thinks Resolved

  Part Number: LM4140 Hi TI engineer, Recently I have solve a problem about LM4140(1.024V)which be proved that caused by output voltage changing when output sink current. I'm curious about this phenomenon, so Why output voltage will change when output…

  • 11 months ago
  • Power management
  • Power management forum

• LM4140: LM4140ACM-1.0/NOPB part power input requirement

  

  Pradeep Prabhu G

  TI Thinks Resolved

  Part Number: LM4140 Hi Ti Team, We have used LM4140ACM-1.0/NOPB part in our design to generate 1V reference voltage. We have given 5V supply as input voltage and controlling the enable signal using 2V5 level GPIO. with 5V input supply and 2V5 enable signal…

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

• LM4140: LM4140 Boosted Output Current

  

  Caglar Cihan

  TI Thinks Resolved

  Part Number: LM4140 Dear team, My customer would like to increase output current for LM4140. Figure 30 on the datasheet is given for this case, but node connections looks like to be missing on the schematics. Could you please fix it? They would like…

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

• LM4140: operation below zero temperature

  

  JAP

  TI Thinks Resolved

  Part Number: LM4140 Is there any data how LM4140 performs under 0 C? The exact temperature I'm interested in is -15C. Thanks! --Juha

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

• TINA/Spice/LM4140: Looking for an LM4140 SPICE model

  

  Robert Peruzzi

  Resolved

  Part Number: LM4140 Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models I'm looking for a SPICE model for the LM4140. It doesn't exist in webench5/spicemodels. Thank you, Robert Peruzzi

  • Resolved

  • over 4 years ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• LM4140: ESR requirement of Low ESR Ceramic Capacitors?

  

  Div222

  Resolved

  Part Number: LM4140 Other Parts Discussed in Thread: DAC7811 Hi there, We use LM4140 for DAC REF2.5V. SCH as below. On Datasheet page9 Figure24-26 shows a Cout's ESR value range for STABLE operation. 1.We use high quality C1005X5R1A475K050BC 4.7u…

  • Resolved

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

• RE: LMP7721: LMP7721

  

  kai klaas69

  Hi Ayodhya, Ayodhya Weerakoon said: Recently I diagnosed that with the temperature of the IC the reading varies. Can you give a number? Please specify how much the reading varies. Is the voltage variation higher than the maximum temperature drift of LM4140…

  • 2 months ago
  • Amplifiers
  • Amplifiers forum

• REF5020: Does REF5020 could replace LM4140

  

  Will Wang47

  TI Thinks Resolved

  Part Number: REF5020 Other Parts Discussed in Thread: LM4140 Hi Team, Customer is using our LM4140 in there project. However, they get a VSSOP package for LM4140 by mistake. Since we don't offer a VSSOP LM4140, so they need to get a replace part for them…

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

• LM4140: connecting multiple reference voltages to the same ADC

  

  rifo

  TI Thinks Resolved

  Part Number: LM4140 Hello, For my application I want to change the reference voltage going to an ADC. I thought of using multiple LM4140s One for 1024mV and the other 4096mV. My question is if I use EN pin for this (only 1 LM4140 is enabled) task, would…

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

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