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Showing 180 results View by: Thread Post Sort by
  • TPS7A49: TPS7A49 current drift under high temp test

    Leo Chow
    Leo Chow
    TI Thinks Resolved
    Part Number: TPS7A49 Hi, i'm in midst of running some high temp test on TPS7A4901DGN with regulator step down from 12V to 9.3V. Recently we found thermal issue on this device, my initial suspect that this issue was caused by output current consumption…
    • over 6 years ago
    • Power management
    • Power management forum
  • TPS7A49: TPS7A4901 can't start up successfully

    Lenna Yan
    Lenna Yan
    TI Thinks Resolved
    Part Number: TPS7A49 Hi Expert, Customer is using TPS7A4901 on their design. the input voltage is 24V and output voltage is 15V, output current is lower than 100mA in normal operation condition. Besides the 10uF output capacitor, another 100uF is added…
    • over 5 years ago
    • Power management
    • Power management forum
  • TPS7A49: Current Limit Specification for TPS7A49

    user4544767
    user4544767
    TI Thinks Resolved
    Part Number: TPS7A49 Hi - do you have a link to an app note for the dimensioning of an LDO ripple reject filter?
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS7A49: Power PAD size

    Takashi Shinde
    Takashi Shinde
    Resolved
    Part Number: TPS7A49 Hello, Based on the data sheet on TPS7A49, I can see 2 types of the power PAD size. Page #33 is 1.89(max)x1.57(max), page #36 is 2.15(max)x1.846(max). Which size should we design the land pattern of PCB? Please advice. regards…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: TPS7A49: TPS7A49 TPS7A4901 regulator output voltage error / creeps up

    Ryan Eslinger
    Ryan Eslinger
    Resolved
    Hi Mark, The NR pin allows for an external capacitor to be used to filter the internal reference of the TPS7A49. Since the output voltage is a gained version of the reference, the NR pin should ideally be completely isolated from any other voltage rail…
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS7A49: current limit behavior question

    BX27
    BX27
    Resolved
    Part Number: TPS7A49 Hi there, we use TPS7A4901 in 19V--->12V application, normal I_load is 100mA or so. We have some questions to consult on its current limit behavior in case of over load current occurs. Quote: "section 8.3.1 and 8.3.4 of datasheet…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: TPS7A49: Current Limit Specification for TPS7A49

    user4544767
    user4544767
    Resolved
    Thank you for the concrete recommendations. As the TI article for the tracking supplies as the feedback as a "servo" voltage feedback - I guess that the bandwidth of most positive regulators would be sufficient (with regard to loop stability), so I…
    • over 7 years ago
    • Power management
    • Power management forum
  • TPS7A49: TPS7A49

    George Richardson
    George Richardson
    TI Thinks Resolved
    Part Number: TPS7A49 I have managed to get a solder bridge shorting Pins 2 and 3 (SSOP pkg). I have tried to correct the short without joy. The DS says that Pin 3 is not internally connected. That would lead me to believe I don't have a problem. Am I…
    • over 8 years ago
    • Power management
    • Power management forum
  • TPS7A49: Regarding current limit feature during LDO output short circuit

    Surya Mohan
    Surya Mohan
    TI Thinks Resolved
    Part Number: TPS7A49 Hi there, We are using TPS7A49 LDO to convert 15 V DC to 5 V DC (Current Requirement: 20 mA). Our 15V DC source can supply maximum current of 200 mA. Please let us know that if the 5V output of LDO is short-circuited, then would…
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS7A49: Output Voltage is High

    Judd Foster
    Judd Foster
    Resolved
    Part Number: TPS7A49 Hi, We are using the TPS7A49 to regulate 20V to 18V for a low noise supply. However, when testing the circuit on the PCB, the output voltage is too high (measured 19.3V). After reading other threads, we determined the cause to be…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
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