• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 400 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

NEED LDO POWER FOR 3.3V, DRIVING LOW ENABLE THE DEVICE

Perry Chuang
Prodigy 90 points
Other Parts Discussed in Thread: TPS7A20, TPS702, TPS701, TPS777, TPS778, TPS776, TPS775, TPS780

HI,

Which item  can design in M.2 circuit?

We need LDO POWER for M.2 VIO_CFG 1.8V(nc) & 3.3V(low) switching for sideband signals.

Thanks

perry 

  • 0
    TI__Prodigy 260 points

    Hello Perry,

    How about TPS7A20? See some device specs below:

    Do you happen to have some Vin and Iout requirements? Or specific key attributes that are needed for switching sideband signals?

    Or were you looking for a dual output device with a 1.8V and 3.3V rail?

      TPS7A20
    AEC Q100 NO
    Output Options Fixed Output
    Iout (Max) (A) 0.3
    Vin (Max) (V) 6
    Vin (Min) (V) 1.6
    Vout (Max) (V) 5.5
    Vout (Min) (V) 0.8
    Fixed Output Options (V) 1.2, 1.5, 1.8, 1.825, 1.85, 2.4, 2.5, 2.8, 3, 3.3, 4.5, 5
    Enable YES
    Power Good NO
    Output Capacitor Type Ceramic
    PSRR @ 100KHz (dB) 60
    Noise (uVrms) 7
    Accuracy (%) 1.5
    Vdo (Typ) (mV) 140
    Iq (Typ) (mA) 0.0065
    Thermal Resistance θJA (°C/W) 179.1
    Min Package Area (mm2) 1
    Package Type SOT-23, X2SON
  • 0 in reply to Maxx Coral
    Prodigy 90 points

    hi, 

    We need 5V to 3.3V LDO, 100mA ~500mA,

    DRIVING LOW ENABLE THE DEVICE

    TPS7A20 is high to drive the device

    perry

  • 0 in reply to Perry Chuang
    TI__Prodigy 260 points

    Hello Perry,

    Thank you for the additional information. We do have LDO's where you drive EN Low to power the device. Since you have a 1.8V and 3.3V output, would you want a single dual output LDO or se two single output LDO's? I will provide both parts for you to make a decision.

    Please look at TPS702 / TPS701 (Dual Output)

    TPS777 / TPS778 (single output) - 750mA

    TPS775 / TPS776 (single output) - 500mA

    You might want to check out TPS780 , it has a Vset HIGH and Vset LOW for 3.3V and 1.8V usually for micro controllers. However, it is below your 500mA spec.

    Hope this helps,

    -Maxx