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LP2985: the differences of electrical characteristics between LP2985 and LP2985A and LP2985-N

Noriyuki Takahashi
Genius 9245 points
Part Number: LP2985
Other Parts Discussed in Thread: , , TPS7A24

Hi team

Could you tell the differences of electrical characteristics between LP2985 and LP2985A and LP2985-N?

I know that LP2985-N was developed at NS and LP2985 and LP2985A are the second source from TI. But I am not sure that whether there are any differences of electrical characteristics.

Customer wants to replace LP2985-33DBVR with LP2985IM5-3.3/NOPB and also replace LP2985A-50DBVR with LP2985IM5X-5.0/NOPB. So they want to understand the differences.

Regards,

Noriyuki Takahashi

  • +1
    TI__Expert 3455 points

    Takahashi-san,

    Please see differences below. Also, we suggest TPS7A24 as the replacement part as it's newer and better.

      LP2985 LP2985-N LP2985A TPS7A24
    AEC Q100 NO NO NO NO
    Output Options Fixed Output Fixed Output Fixed Output Adjustable Output, Fixed Output
    Iout (Max) (A) 0.15 0.15 0.15 0.2
    Vin (Max) (V) 16 16 16 18
    Vin (Min) (V) 2.2 2.2 2.2 2.4
    Vout (Max) (V) 10 6.1 10 17.75
    Vout (Min) (V) 1.8 1.8 1.8 1.24
    Fixed Output Options (V) 1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 6.1 1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10 1.25, 1.8, 2.5, 3, 3.3, 3.6, 5
    Enable YES YES NO YES
    Power Good NO NO NO NO
    Output Capacitor Type Ceramic Ceramic Ceramic, Non-Ceramic Ceramic
    PSRR @ 100KHz (dB) 40 30 40 22
    Noise (uVrms) 30 30 30 300
    Accuracy (%) 5 2 3 2
    Vdo (Typ) (mV) 280 280 280 160
    Iq (Typ) (mA) 0.065 0.065 0.065 0.002
    Thermal Resistance θJA (°C/W) 206 169 206 167.8
    Min Package Area (mm2) 4.64 4.64 4.64 4.64
    Package Type SOT-23 SOT-23 SOT-23

    SOT-23

    Thanks,

    Prakash L