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Showing 76 results View by: Thread Post Sort by
    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
  • RE: TPS62821: TPS63805

    Davor Pavlovski
    Davor Pavlovski
    Hi, For the TPS62821 the SW pin is between the VIN and PGND pins, so the input capacitor blocks access to the SW pin unless the SW pin is routed underneath the input capacitor. More information about your particular question you can find in the following…
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS62822: TPS62822/ TPS62823/ TPS62821 parts- ordering help required

    shubhangi bagal
    shubhangi bagal
    Resolved
    Part Number: TPS62822 Other Parts Discussed in Thread: TPS62823 , , TPS62821 We have a requirements for TPS62822/ TPS62823/ TPS62821 parts. As suggested by Excel Regidor in my earlier query, I have the get notifications option on TI store enabled, but…
    • Resolved
    • over 4 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…
    • over 7 years ago
    • Power management
    • Power management forum
  • 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…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • TPS62821: Two TPS62821 to work together

    Terry Weng
    Terry Weng
    TI Thinks Resolved
    Part Number: TPS62821 Other Parts Discussed in Thread: TPS61291 , TPS62740 , TPS62745 , TPS61099 Can we use two TPS62821 to step down two primary lithium batteries from 3.6V to 1.6V and then add them up to have regulated 3.2V output?
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS62821: TPS62821 pre-biased during start-up

    Terry Wu2
    Terry Wu2
    Resolved
    Part Number: TPS62821 Other Parts Discussed in Thread: TPS62740 , , TLV62565 Hello Sirs, We evaluate tps62740 for low power products but its output voltage will become Vin during output pre-biased . Is this reasonable for this chip ? We consider…
    • Resolved
    • over 7 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: 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 6 years ago
    • Power management
    • Power management 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 is probably…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
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