Answered

• TPS548A28: TPS548A28 PG pin

  

  dimitry chen

  Resolved

  Part Number: TPS548A28 Tool/software: Hi my current design Vin is 5V , but EN is low , and VCC is also 0v. and PG is pull to 3v3. What is PG behavior is this situation ? I am currious will be PG clamp to 0.9V even Vin is 5V.

  • Resolved

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

• TPS548A28: TPS548A28 remote sense parallel ADC

  

  King Tsai

  Resolved

  Part Number: TPS548A28 Tool/software: Hello, Team We want to know would this affect our POL by adding an extra connection of our remote sense pin with an ADC device for extra voltage sense ?

  • Resolved

  • 6 months ago
  • Power management
  • Power management forum
Answered

• RE: TPS548A28: Why is the PGOOD signal of TPS548A28 still pulled high when Vin is not equal to 0V ?

  

  Ryan Chen

  Resolved

  Hi Nick, That is okay, as long as it goes VIN, VCC, and EN that just means that EN will the signal that starts up the power up sequence. Best, Ryan

  • 6 months ago
  • Power management
  • Power management forum
Answered

• TPS548A28: INTERNAL LDO (VCC PIN) and enable pin checking

  

  dimitry chen

  Resolved

  Part Number: TPS548A28 Tool/software: Hi I am curious is INTERNAL LDO (VCC PIN) is trigger by enabl pin ? Does enable low will cause Pgood "clamp" ? becuae Vcc is not enable, even vin is powered. Is ther any other buck solution like TPS548A28…

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum

• TPS548A28: EN power up, Vout waveform confirm

  

  Victor Yu

  Part Number: TPS548A28 Tool/software: Hi Team, This thread will be share to customer. They want to confirm if the output waveform below is normal behavior on our device. Red circle below: Datasheet picture is too small to confirm this. BR, Victor …

  • 6 months ago
  • Power management
  • Power management forum
Answered

• TPS548A28: Simulation in webench

  

  Ryu Yamashita

  Resolved

  Part Number: TPS548A28 Tool/software: Hi team, I get an error in webench when I use 12V input and 5V output for 15A with this device. Is it my understanding that this device is limited to 12A with 3~4V input and 15A with 12V input regardless of the output…

  • Resolved

  • 7 months ago
  • Power management
  • Power management forum

• TPS548A28: Ripple waveform

  

  Hailiang Zhang

  Part Number: TPS548A28 Tool/software: Hi Team, Pls check the ripple of TPS548A28 below. I would like to know why the ripple voltage drops twice during the freewheeling phase. Please refer to the waveform shown in the red circle below. Could you pls help…

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

• TPS548A28: schematic and layout review

  

  Jeff YANG

  Resolved

  Part Number: TPS548A28 Tool/software: Hi, Would you please add me friend? I will pass schematic and board file to you for review schematic and layout. Thank you for your support.

  • Resolved

  • 7 months ago
  • Power management
  • Power management forum

• TPS548A28: SW level

  

  Jeff YANG

  Part Number: TPS548A28 Tool/software: I have a question to ask. The attachment is the signal measurement of the TPS548A28 Switch node. The level difference between the two signals is close to 1V. Is this normal? Please help confirm, thank you! CH1 TPS548A28…

  • 9 months ago
  • Power management
  • Power management forum
Answered

• RE: TPS548A28: TPS548A28 burned out due to a current over 4A

  

  Ryan Chen

  Resolved

  Hi Humberto, Okay, if there are no other issues I will close the thread. Best, Ryan

  • 11 months ago
  • Power management
  • Power management forum

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