• LM3691: Min operating temp is -30C?

  

  Paul Jost

  TI Thinks Resolved

  Part Number: LM3691 Tool/software: The minimum operating temperature on the LM3691 datasheet is -30C. Can it run reliably at -40C? Was it just not tested lower? Will operating characteristics be out of the specified range if used down to -40C?

  • 8 months ago
  • Power management
  • Power management forum
Answered

• LM3691: Absolute maximum rating

  

  Terry Hu

  Resolved

  Part Number: LM3691 Tool/software: Hi Team, Customer is asking the absolute maximum rating for switching node. They assume the a bsolute spec is only DC rating, The AC (less than 10ns) Absolute Maximum Ratings for the SW pin (while switching) would…

  • Resolved

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

• LM3691: adding delay to LM3691 enable pin

  

  Kavitha Ajay

  Part Number: LM3691 Hi, for one of my projects, I am using a Load switch for 3.3 after that LM3691 regulator to stepdown to 1.8V. due to more rise time, the complete 3.3V generates after 1.8 V at the output, as the enable is tied to Vin of regulator…

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

• LM3691: LM3691 Adjustable Output

  

  Don Schelle

  Part Number: LM3691 Hello, I need to create a 0.8V output. Can I use feedback resistors on the LM3691TL-0.75 device to generate the desired output voltage? Don

  • over 8 years ago
  • Power management
  • Power management forum

• LM3691: Slow ramping Vin LM3691, seek reproduction of an issue

  

  M.A.M

  TI Thinks Resolved

  Part Number: LM3691 Hi, My customer see an issue with slow ramping Vin (20 sec from 0V to 5V). I request your advice and reproduction of this test on a 3V3 part to see if you also can find it. More details can be provided by me offline via email…

  • over 8 years ago
  • Power management
  • Power management forum
Answered

• LM3691: Ramp-down issue clarification

  

  M.A.M

  Resolved

  Part Number: LM3691 Hi, My customer has ensured that this requirement is met during power-up: Datasheet page 16: " 8.4.2 Shutdown Mode .... EN pin must be set low to turn off the LM3691 during system power up and undervoltage conditions when the supply…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

• LM3691 Start Up operation

  

  K.Hamamoto

  Hi We found a unknown operation at start up. (Vin ramp up very slowly.) Yellow: Vin, Blue:Vout, Pink: Iin There is two step operation. It looks that different current limit works at each step. (MODE pin is connected to Vin directly.) Is it…

  • over 10 years ago
  • Power management
  • Power management forum

• LM3691 - Possible mistake on the datasheet information about the layout example

  

  Hugo Jordao

  Other Parts Discussed in Thread: LM3691 I found this image about the layout of the LM3691. Are the "KEY" description colored in the opposite way? Thanks

  • over 9 years ago
  • Power management
  • Power management forum
Answered

• [ LM3691 ] Input Current Anomaly

  

  Kenichiro

  Resolved

  Other Parts Discussed in Thread: LM3691 [ LM3691 ] Input Current Anomaly Hi, I'm considering whether I should send LM3691TLX-1.2, customer reported anomaly of input current, to failure analysis process. Does anyone have comment? My customer…

  • Resolved

  • over 11 years ago
  • Power management
  • Power management forum
Answered

• WEBENCH® Tools/LM3691: Looking for Vout min and Vout max, i.e the historical feature that used to exist in Webench

  

  M.A.M

  Resolved

  Part Number: LM3691 Other Parts Discussed in Thread: TLV431 Tool/software: WEBENCH® Design Tools Hi, My customer wants to study the Vout tolerance but cannot find Vout min/max anymore. How to get this info from the tool? Thanks! /M.A.M

  • Resolved

  • over 8 years ago
  • Power management
  • Power management forum

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