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Showing 145 results View by: Thread Post Sort by
  • TPS54821: Enable Pin

    Allan Fan
    Allan Fan
    TI Thinks Resolved
    Part Number: TPS54821 Hi expert, Customer used TPS54821 with 12Vin to 3.3Vout. The ENABLE pin seems can leave floating or pull up to 12Vin or make a R divider to enable the device. Which way can boot up the device to 3.3Vout in the quickest way? …
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS54821: what is the peak current of this part?

    bluesky
    bluesky
    TI Thinks Resolved
    Part Number: TPS54821 Does the maximum output 8A of TPS54821 refer to the average current or peak current? If referring to the average current, what is the peak current? How to understand the High-side switch current limit threshold and Low-side…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54821: Vout drop issue

    Jeff YANG
    Jeff YANG
    Resolved
    Part Number: TPS54821 Hi, Mu customer have TPS54821 vout drop issue. Please see below waveform. CH1: Iout CH2: Vout CH3: SW But when Iout increase, Vout drop to 1.324V. And trig PWRGD low threshold. we also check inductor should be meet…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54821: Current limit conditions

    Dice-K
    Dice-K
    Resolved
    Part Number: TPS54821 Hi support team, There is an inrush current of 9.2A on the output side at startup. The calculation of the peak current and valley current of the inductor is as follows. Peak current : 10.2A Valley current : 8.2A The peak current…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54821: inquire Vin=12V and Vout=12V/6A spec

    Lawrence He
    Lawrence He
    Resolved
    Part Number: TPS54821 Other Parts Discussed in Thread: TPS2597 , TPS25981 Hi, Support Team Please help recommend a power switch which can meet Vin max 15V, continue current 6A. TPS54821 can meet spec? our customer spec: normal Vin=12V; Vout:12V…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS54821: Thermal Pad dimensions

    Trent Alldredge
    Trent Alldredge
    TI Thinks Resolved
    Part Number: TPS54821 Hi and thank you for your help! The TPS54821 datasheet doesn't give dimensions for the thermal pad. What are the dimensions? Also, is it exactly centered on the device or where is it? Thank you, -Trent
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS54821: equivalent part

    Sergi Gorreta
    Sergi Gorreta
    Part Number: TPS54821 Hi, I am interested in using the switching regulator TPS54821 in a design, as it matches the requirements for the required application. However, I would prefer using a leaded package like SOIC, TSSOP, MSOP, etc., instead of a leadless…
    • over 4 years ago
    • Power management
    • Power management forum
  • TPS54821: Technical support for TPS54821

    CHLOE CHOI
    CHLOE CHOI
    TI Thinks Resolved
    Part Number: TPS54821 Hello? This is Chloe from BARO TECH. I purchased 210ea of TPS54821RHLR from TI online shop. (Invoice no. 5436016085) My customer had CSAM test, they found some delamination in their lead frame before the soldering. You can…
    • over 5 years ago
    • Power management
    • Power management forum
  • TPS54821: BOOT-PH UVLO

    Mitchell
    Mitchell
    TI Thinks Resolved
    Part Number: TPS54821 Hi Team, My customer is seeing an issue in their system while running off of our internal battery where under high system loads, high loads on our 5V rail (supplied by a TPS54821), and low battery state-of-charge, they see the…
    • over 4 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54821: Demo Board

    Andres Hernandez
    Andres Hernandez
    Resolved
    Part Number: TPS54821 Is there a demo board out there that has this part TPS54821RHLT, Digikey says it has been out of stock for a while so we are resorting to finding demo boards?
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
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