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  • TPS54821: Low output voltage in TPS54821RHLR

    TI Thinks Resolved
    Part Number: TPS54821 Hello, In my design I use TPS54821 to convert from 12V to 8V. Unfortunately the output voltage not stable around 2V instead 8V Thanks

  • TPS54821: Disconnect SW waveform in light load at 1000Mhz

    TI Thinks Resolved
    Part Number: TPS54821 Hi Team: here attach the customer test summary. can you help to check why the SW will disconnect under 1000Mhz in light load like 0.7A? tks ! TPS54821 ripple&SW issue.pptx

  • TPS54821: New designs assistance

    TI Thinks Resolved
    Part Number: TPS54821 Hi, I would like to have technical assistance for a design using that components TPS54821, we want confirmation that will be working properly as the simulation is telling on TI tool, we try to generate levels of tension that we are…

  • TPS54821: what is the peak current of this part?

    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 switch…
    • Answered

  • TPS54821: Pull down EN pin

    Resolved
    Part Number: TPS54821 Other Parts Discussed in Thread: LP5912 , TPS74801 Hi ti team, I need to control the EN pin of TPS54821 by one GPIO of MCU. Before I read 7.4.1 for Enable control, I am going to pull down the EN pin by a resister to keep TPS54821 off…
    • Resolved

  • TPS54821: Enable Pin

    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? Regards…
    • Answered

  • TPS54821: inquire Vin=12V and Vout=12V/6A spec

    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 / Iout…
    • Resolved
    • Answered

  • TPS54821: Vout drop issue

    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 spec. Below is…
    • Resolved
    • Answered

  • TPS54821: Current limit conditions

    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 is…
    • Resolved
    • Answered

  • TPS54821: TPS54821: RT/CLK Left Floating

    Resolved
    Part Number: TPS54821 I have a design with the TPS4821 that had left the RT/CLK Pin Floating. After installing a 47.5K Resistor to GND, I see the PH signal toggling @ around 1 MHz for 5 - 6 times and then switches to 500KHz. Wondering if this is in Pulse…
    • Resolved

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