• TPS57140-Q1: TPS57140QDRCRQ light load operation

  

  Will Jarrett

  TI Thinks Resolved

  Part Number: TPS57140-Q1 Tool/software: Question from my customer: In a design that I am working on we are using a TPS57140QDRCRQ to convert a 12V input to a 1V output. The 1V rail is being used to power an FPGA with a tight tolerance window (±3…

  • 4 months ago
  • Power management
  • Power management forum

• TPS57140-Q1: How to calculate the dummy load resistor value?

  

  shihui xu

  TI Thinks Resolved

  Part Number: TPS57140-Q1 Tool/software: We want to solve the low dropout operation with light load problem of TPS57140-Q1. Could you tell me how to calculate the dummy load resistor value? I saw the solutions in SLVA547A, but it only give the value…

  • 7 months ago
  • Power management
  • Power management forum
Answered

• TPS57140-Q1: how the cboot charge current flow when highside mos off?

  

  shihui xu

  Resolved

  Part Number: TPS57140-Q1 Tool/software: can you draw the current path of the charge on the picture below? wondering how it works.

  • Resolved

  • 8 months ago
  • Power management
  • Power management forum

• TPS57140-Q1: PH no output

  

  Beida Song

  TI Thinks Resolved

  Part Number: TPS57140-Q1 Tool/software: Hi Expert, During TPS57140-Q1 work in normal mode, there is no output of PH pin suddenly. Vin and Vout voltage are abrove UV threshold. The left is overview waveform, and the right is zoom in waveform. …

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

• TPS57140-Q1: AC-couple to GND

  

  jian chen

  TI Thinks Resolved

  Part Number: TPS57140-Q1 Other Parts Discussed in Thread: LM26420 The following schematic diagram of the lack of EMI filter Cd, how much impact. Are there any acceptance criteria? The LM26420 module in the following figure selects a filter inductance…

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

• TPS57140-Q1: TPS57140QDRCRQ1

  

  Shreeharsha kandlaje

  TI Thinks Resolved

  Part Number: TPS57140-Q1 Hello, Issue reported from production plant. "During SMT it was found that IS TPS57140QDRCRQ1 exceeded moisture control date (04.11.2023)" could you please confirm (1) any risk of using this component in our product …

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

• TPS57140-Q1: Power management forum

  

  jian chen

  TI Thinks Resolved

  Part Number: TPS57140-Q1 Other Parts Discussed in Thread: LM26420 The following schematic diagram of the lack of EMI filter Cd, how much impact. Are there any acceptance criteria? The LM26420 module in the following figure selects a filter inductance…

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

• TPS57140-Q1: TPS57140-Q1 schematic

  

  Ivy Jin

  Resolved

  Part Number: TPS57140-Q1 Hi team， Could you please help review the TPS57140-Q1 schematic and give some experienced comments？ Vin：9~16V(14V),125mA 。 Thank you in advance! Regards, Ivy

  • Resolved

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

• TPS57140-Q1: Conformal Coating of Conformal TPS57140QDRCRQ1

  

  ?? ?

  Part Number: TPS57140-Q1 Hi TI Team, I would like to know if DS90UB941ASRTDRQ1,TPS57140QDRCRQ1,LM26420Q1XSQ/NOPB,SN331QDBVRQ1, could be safely conformal coated ? Conformal coating material is Elpeguard SL1307. Thanks & Best Regards

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

• TPS57140-Q1: TPS57140-Q1 Output voltage is too high

  

  Raymond He

  Part Number: TPS57140-Q1 dear my customer automotive project use TPS57140+TLV7333 while mass producttion, 10+PCS TLV7333 had burn out as Input voltage is too high ,but TPS57140 normal （TPS57140 output connect to TLV7333 input） we double that is there…

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

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