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Showing 12 results View by: Thread Post Sort by
    Answered
  • TPS748A-Q1: TPS748A-Q1

    Mark Fratta
    Mark Fratta
    Resolved
    Part Number: TPS748A-Q1 Tool/software: I've read the other posts but am still confused about the drop out and the bias conditions. I would like to use the part since it has the soft-start feature to regulate from 5V to 3.3V using the part with IN…
    • Resolved
    • 4 months ago
    • Power management
    • Power management forum
  • TPS748A-Q1: Datasheet Spec Inquiry

    Evan Wang
    Evan Wang
    TI Thinks Resolved
    Part Number: TPS748A-Q1 Tool/software: Hi TI Expert, Few questions about the TPS748A-Q1 would like to check with you: 1. About the ISHDN, why we have 0.8V VOUT when VEN is lower than 0.4V, that's the leakage from VIN or we just add extra power source…
    • 5 months ago
    • Power management
    • Power management forum
  • TPS748A-Q1: high temperature tolerance ldo

    Yuhao Wang
    Yuhao Wang
    Part Number: TPS748A-Q1 Hello Do we have any LDO which could tolerate the 140 degree environment temperature and the 175 junction temperature. If not any recommendation in high temperature tolerance LDO device. Thanks Yuhao
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • TPS748A-Q1: Dropout voltage in the specific condition

    NAOKI CHIYODA
    NAOKI CHIYODA
    Resolved
    Part Number: TPS748A-Q1 Other Parts Discussed in Thread: TPS79633-Q1 , , TPS748A We want to know the dropout voltage under the case of Vin=3.8V, Vbias = 5V, and Vout=3.3V. Need to compare the characteristics between TPS79633-Q1 and TPS748A-Q1 to judge the…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • TPS748A-Q1: Output voltage setting

    Lei Tao Tao
    Lei Tao Tao
    Resolved
    Part Number: TPS748A-Q1 Other Parts Discussed in Thread: TPS748A , , TPS74801 Hello, Normally,LDO output Vout = Vfb*(R1+R2)/R2,there is no description in the datasheet, dose tps748a Vout be set by Vfb, R1, R2? And, is there any output fixed version, i…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • TPS748A: minimum output capacitor requirements confusion

    John Wehle
    John Wehle
    TI Thinks Resolved
    Part Number: TPS748A Other Parts Discussed in Thread: TPS74801EVM-177 , Tool/software: The TPS748A datasheet on the first page notes: Stable with any output capacitor >= 10 uF which is also reflected in table "6.3 Recommended Operating Conditions"…
    • 11 days ago
    • Power management
    • Power management forum
  • TPS748A-Q1: Is there a way to change OVP and OCP in pspice models

    ceadebi
    ceadebi
    TI Thinks Resolved
    Part Number: TPS748A-Q1 Is there a way to change the Overcurrent protection and over voltage protection in the Pspice models of this.
    • over 1 year ago
    • Power management
    • Power management forum
  • RE: TPS748A: Datasheet Query

    KARTHIK KRISHNA JAYACHANDRAN
    KARTHIK KRISHNA JAYACHANDRAN
    Thanks for the response. Kindly clarify the following doubts 1. In which scenario "VBIAS must be 1.9 V above VOUT" as mentioned in section 8.1.2. ? (Resolved in https://e2e.ti.com/support/power-management-group/power-management/f/power-management…
    • 4 months ago
    • Power management
    • Power management forum
  • RE: TPS7A52-Q1: Ground Current Query

    Alex Davis
    Alex Davis
    Hi Srijesh, It looks like for the 3.8V output, TL1963A-Q1 might be an option. Its quiescent current with a 0mA load is 1.5mA max, though, which is higher than your requested 500µA max. For the 3.3V supply, I'd suggest TPS74801-Q1 or TPS748A-Q1 as…
    • 3 months ago
    • Power management
    • Power management forum
  • Answered
  • RE: UA78L: Quiescent Current = Bias current?

    Daniel Esparza
    Daniel Esparza
    Resolved
    Hello Kei, The Bias and quiescent may be referred to the same current in a bipolar LDO, but in modern LDOs they are different. In modern LDO's, the bias current is inherent of NMOS LDOs as they do require a higher voltage bias rail to power their internal…
    • 1 month ago
    • Power management
    • Power management forum
>

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