• TPS54531: Very high heat. High-frequency ripple output voltage.

  

  Suslik Shkratslov

  TI Thinks Resolved

  Part Number: TPS54531 Tool/software: Hello. I made a typical diagram as indicated in the documentation: In my circuit, I increased the output voltage by 0.6V to level out the voltage drop across the output diode (VD12 in my PCB). …

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

• TPS54531: Reverse leakage voltage on TPS54531DDAR

  

  Nguyen Hong Bang

  Resolved

  Part Number: TPS54531 Tool/software: Hello, I have a power supply design with the schematic as below using IC TPS54531DDAR. I have 2 power options, one of which is power from a 12VDC adapter via a TPS54531 for 5VDC output. The other is 5VDC backup power…

  • Resolved

  • 3 months ago
  • Power management
  • Power management forum

• RE: TPS54531: PCN

  

  Young Zhao

  Hi Jeff, Yes, if new FAB site enabled which would initiate a new PCN .

  • 9 months ago
  • Power management
  • Power management forum

• TPS54531: The output voltage is lower than the design output

  

  Lumina Gui

  TI Thinks Resolved

  Part Number: TPS54531 Dear TI Teams, We found an issue with the output voltage is lower than the design voltage when using TPS54531 in our new project. The input voltage is 4.3V and the design output is 3.8V, with a maximum load of 2A. The design voltage…

  • 9 months ago
  • Power management
  • Power management forum

• TPS54531: How to calculate the efficiency?

  

  Shashank Vaidya

  TI Thinks Resolved

  Part Number: TPS54531 Hi there, I want to calculate the input current of the device TPS54531 for the Input voltage 6.1V, output voltage is3.3V, since the efficiency is not clear, please let me know how to calculate it?

  • 12 months ago
  • Power management
  • Power management forum
Answered

• TPS54531: Would like to enable IC at higher than 12V

  

  Shunsuke Yamamoto

  Resolved

  Part Number: TPS54531 Hi team, My customer would like to enable IC when the input voltage gets higher than 12V. The input voltage is supposed to be 24V. In this case, Is it possible to use ren1 resistor and ren2 to set the threashold voltage of IC startup…

  • Resolved

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

• TPS54531: Audible switching noise during on high load

  

  Jab

  TI Thinks Resolved

  Part Number: TPS54531 Hi, We are using the TPS54531DDA for generating a 5V with current requirement of 2.7A (at max load) from 12V to 19V input voltage. at high load condition, we are able to hear the switching noise from this regulator section. we are not…

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

• TPS54531: EN pin floating

  

  Kevin Huang8

  TI Thinks Resolved

  Part Number: TPS54531 Hi Team, When the VIN pin has a voltage input, the output is no-load, Float the EN pin to measure the voltage value, will measure 5 volts, Is this phenomenon normal?

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

• TPS54531: PCN question

  

  Jeff YANG

  TI Thinks Resolved

  Part Number: TPS54531 Hi, For TPS54531 PCN : 20230217003.1, May I know it have any date code information can clarify chip is before or after PCN? Thanks! Jeff

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

• TPS54531: Low probability of output voltage reduction

  

  Cherry Zhou

  Part Number: TPS54531 Hi team, Design with reference circuitry. The input is fixed at 24 V, the output is 7 V, the EN pin voltage is 5.5 V, and the load current is between 100 and 200 mA. There is now a probability (about one-thousandth) that the output…

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

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