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Showing 74 results View by: Thread Post Sort by
    Answered
  • TPS62821: Sudden Open Circuit at VIN pin

    Francesco Anzalone
    Francesco Anzalone
    Resolved
    Part Number: TPS62821 Hello, In my configuration, EN pin is shorted with VIN pin, as shown in the figure. For contacting issues in my prototype, it is possible that the 5V line suddenly becomes an open circuit, bringing VIN and EN pin to ground as C2…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • WEBENCH® Tools/TPS62821: TPS62821

    DHARINI V
    DHARINI V
    TI Thinks Resolved
    Part Number: TPS62821 Tool/software: WEBENCH® Design Tools Hi, I'm from HCL technologies, while running the simulation for TPS62821 IC in WEBENCH tool I can't able to view the simulation output for -- START UP -- simulation only, the part numbers…
    • over 5 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • Answered
  • TPS62821: Without pull-up or pull-down on EN pin can damage IC ?

    KevinMEL
    KevinMEL
    Resolved
    Part Number: TPS62821 Hello, On my design the enable pin of the buck converter TPS62821 is controlled by a µC, but before the µC is programmed the EN pin is leave floated and VIN is powered. During this time, the output of the buck converter…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS62821: TPS62821 switching current limit

    Sam Shyu36
    Sam Shyu36
    Resolved
    Part Number: TPS62821 Dear Sir, Please help to check below waveform about TPS62821 Vout and Iout. Is it normal for the output voltage to rise again after falling? Is this the behavior of the switching current limit? Best Regards, Sam
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS62821: Fixed 1.2V version

    Randhir Kalsi
    Randhir Kalsi
    Resolved
    Part Number: TPS62821 Hello team, Hope you are doing well. When you get a chance can you help with customer question on if the TPS62821DLC has a 1.2V Fixed version? Regards, Randhir
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • TPS62821: Can I design with 250uF output capacitance?

    Lauren Mayfield
    Lauren Mayfield
    TI Thinks Resolved
    Part Number: TPS62821 Other Parts Discussed in Thread: TPS62825 , TPS82084 Hi, I’m working on a core power supply for a small FPGA and I have a few questions about some parts. The requirements are: Vin: 2.8 – 4.5V Vout: 1.1V +/- 2.5% Iout:…
    • over 5 years ago
    • Power management
    • Power management forum
  • TPS62821: tps62821 EMI Reduction Optimization

    user4370495
    user4370495
    TI Thinks Resolved
    Part Number: TPS62821 Dear E2E: Compared to the schematic and pcb layout, i found the via near L99 in wrong position, i should be behind the output cap C741. The input cap C739 was not very perfecter. I check the sw waveform, it's bad. The output point…
    • over 6 years ago
    • Power management
    • Power management forum
  • TPS62821: ripple of PSM

    Jerry Chen
    Jerry Chen
    TI Thinks Resolved
    Part Number: TPS62821 Hi, I didn't find the measured output ripple in datasheet. Could you pls provide the ripple data with below condition? Thanks. Vin=3.3V Vout=1.5V Iout=50-300mA L=0.47uH Cout=22uF
    • over 5 years ago
    • Power management
    • Power management forum
  • TPS62821: DCS Control AC Response Calculations

    Michael Balourdas
    Michael Balourdas
    TI Thinks Resolved
    Part Number: TPS62821 Are there any app notes with calculations that model the AC response for DCS control converters? I have a customer that wants to do some hand calculations for TPS62821, beyond the TINA simulation. Thanks, Michael
    • over 5 years ago
    • Power management
    • Power management forum
  • TPS62821: How to determine the maximum inductor value with DCS Control

    John Griffith
    John Griffith
    TI Thinks Resolved
    Part Number: TPS62821 Hello, I have a customer that is using the TPS68281 device and they would like to use a larger inductor than specified in the datasheet: a value between 1-3µH. They have 5V in, 3.3V out at 10-50mA. The datasheet "Inductor Selection…
    • over 5 years ago
    • Power management
    • Power management forum
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