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  Given Ding

  • 9 months ago
  • Power management
  • Power management forum

  LP2985-N: Vout vs temp and temp drift

  TI Thinks Resolved

  Part Number: LP2985-N Hi Team, Here is a question from customer. Customer use LP2985-3.3V as Vref for high accurate ADC and they find Vout changes with temp and different part changes at different amplitude. So customer hope to get help on below:...
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  JCHK

  • 2 months ago
  • Power management
  • Power management forum

  RE: LP2985A: Difference between LP2985AIM5-... and LP2985A-...

  Hi Eckhard, Here is a summary of the differences : The LP2985AIM5 is the LP2985-N it has a lower VOUT max but has more voltage offerings and better thermal performance. I made the table above with our LDO quick search tool which can be found...
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  Stephen Ziel

  • 10 months ago
  • Power management
  • Power management forum

  RE: LP2985-N: Battery and USB power circuit

  Hello, You would want to use the blue line. From that plot, at room temperature your ESR is about 13m ohms. In the Controls and Parameters box, you can change the temperature to see how this performs at other environments. You should also enter your...
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  Yee Yong Teo

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

  LP2985-N: Enable threshold

  TI Thinks Resolved

  Part Number: LP2985-N Hi, In datasheet, 1.6V is the minimum to enable and 0.15V is the maximum to disable. Questions: What is the accuracy for this threshold value? What happen to Vout if Ven falls in between 0.15V and 1.6V? Can I have the Ven...
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  Felipe Neves80

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

  RE: LP2985-N: Low voltage output for 3.3V regulator

  It was a very strange issue. I tried re-soldering and substituting the IC with no success. To solve it I had to unfortunately change for a compatible IC (NCP511SN33) that worked properly without changing anything else. I wonder the other ICs were defective...
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  Leo Chow

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

  LP2985-N: LP2985 design guidelines & capacitor constraints

  • Resolved

  Part Number: LP2985 - N Hi, i have a question with regards to LP2985 recommended design guideline
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  Ryan Eslinger

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

  RE: LP2985-N: Stepping down 9V battery to 3.3V

  Hi Ashish, The amount of power that can be dissipated depends on application specific conditions including heatsinking, ambient temperature, air flow, etc. Often before a board is laid out the best way to estimate if a device is adequately able to dissipated...
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  Alan Firpo

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

  LP2985-N: Failure

  Part Number: LP2985-N I am using an LP2985IM5-5.0 with the recommended circuit from the data sheet. I have 10V input, 5V out, about 10mA load. I have seen 2 failures where the output voltage is about 6.5V on both failures. There is no oscillation on the...
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  John Chou62

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

  TI compatible part for LDO

  TI Thinks Resolved

  hi Team, trying to find TI compatible parts with S-1200B35-M5T1U /SOT-23-5 is the following part a good fit? LP2985-N S-1212B28-M5T1U /SOT-23-5 closest i found is the TPS7B4250-Q1, but not enough current please kindly suggest if...
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  Christophe Pradervand

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

  LP2985: LP2985AIM5-3.3/NOPB regulation failure

  TI Thinks Resolved

  Part Number: LP2985 Hello I face recently failures of regulation with the LP2985, appeariing on some boards. The LDO is fed by a 12V supply, not well regulated, with ripple at 1kHz. See below the startup sequence We see clearly that the LDO...

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