• LM1117: LM1117IMPX-5.0/NOPB

  

  SHAWN FONG

  Part Number: LM1117 Dear experts, Is there a datasheet or PCN to show the change of die topology for LM1117IMPX-5.0/NOPB from 2019/20 - 2021? Our old record shows the part# LM1117 was marked on the die but newly received part# with DC:2110, COO: Malaysia…

  • 1 month ago
  • Power management
  • Power management forum

• LM1117: Thermal Resistance Curves

  

  Harsh Songara

  TI Thinks Resolved

  Part Number: LM1117 Hello, I plan to use the LM1117-3.3V for my 3V3 Regulated output from a 5V input. The required current output is 0.8A (worst case scenario). I was looking at the thermal resistance curves and wanted to know by how much would the thermal…

  • 1 month ago
  • Power management
  • Power management forum
Answered

• LM1117: 3.3V applied on Vout when no Vin

  

  Takashi Yamaguchi

  Resolved

  Part Number: LM1117 Hi team, I received a question about LM1117 from my customer. The customer is considering to use the LM1117 3.3V option. Their question is " Is it ok to apply external 3.3V to Vout when Vin is 0V?". I think that the LM1117…

  • Resolved

  • 1 month ago
  • Power management
  • Power management forum
Answered

• LM1117: Output voltage ripple

  

  Gene Qiu

  Resolved

  Part Number: LM1117 Hi team, Here come across some LM1117 chips output voltage ripple too much case need your help to guide whether what is risk/potenial reason with below schematic or layout ? if moved the not working fine chip to other w/o LED board,…

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum

• RE: LM1117: When using at low temperature

  

  ACGUY

  Hi angelo, What I would like to know is whether the LM1117 has the property of becoming unstable at low temperatures. Regards, ACGUY

  • 4 months ago
  • Power management
  • Power management forum
Answered

• LM1117: Difference in orderable part numbers

  

  Darren Jenkins

  Resolved

  Part Number: LM1117 LDO team, Can you please tell me the difference between these two orderables? LM1117IMP-3.3/NOPB LM1117IMPX-3.3/NOPB Note the "X". Thanks, Darren

  • Resolved

  • 5 months ago
  • Power management
  • Power management forum
Answered

• LM1117: Voltage Out without input voltage

  

  Shibin Varghese

  Resolved

  Part Number: LM1117 Hi Team, I am using LM1117MP-5.0/NOPB LDO as the 5V regulator in one of my circuits. What follows the 5V regulator is a 3.3V regulator of the same kind and some 5V logic devices. The input supply is 15V so I am using a 9V regulator prior…

  • Resolved

  • 6 months ago
  • Power management
  • Power management forum

• RE: WEBENCH® Tools/LM1117: LM1117-ADJ Voltage out Error

  

  Umayal Ramanathan

  Hi Brett, The issue in panel for device LM1117 on ti.com is now resolved. Thanks and Regards, Umayal

  • 10 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• LM1117: LM1117

  

  vijayavani raju

  TI Thinks Resolved

  Part Number: LM1117 Hi Team, The maximum dropout voltage is stated as 1.3V for Iout of 800mA in the datasheet. For 5V to 3.3V conversion, the dropout will be 5-3.3=1.7V which is above the drop out stated in datasheet. Can LM1117-3.3 be used to derive…

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

• RE: LM1117: LM1117 worst case Vout specification

  

  Jason Song

  Hi Dave, Sorry for the delay in response. I have received feedback from James who was in the team originally developed LM1117. According to him, “Temperature stability and long term stability would likely have come out of the electrical characterization…

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

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