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SA21309B00DAD

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Low IQ, Low Dropout, Automotive 1A LDO
Datasheet
SA21309B00DAD Low IQ, Low Dropout, Automotive 1A LDO Datasheet
    Part numberSA21309B00DAD
    Vin (max) (V)6
    Vin (min) (V)2
    Iout (max) (A)1
    Output typeAdjustable
    Vout (max) (V)5.5
    Vout (min) (V)0.55
    Iq (typ) (uA)25
    PSRR at 100kHz (dB)35
    Accuracy (±%)1
    FeaturesPrecise output,Enable,Fixed soft-start,Power good,Auto-discharge,Low Iq,Over current protection,Output short to ground protection, Foldback Current Limit, Thermal shutdown,Wettable flanks package
    Operating temperature range(°C)-40 to 125
    PackageDFN3×3-8
    Functional safety category
    • Input Voltage Range:2V to 6V 
    • Adjustable Output Voltage: 0.55V to 5.5V
    • Low Dropout Voltage: 220mV(Typ.) @1A(3.3V VOUT)
    • Power Supply Rejection Ratio (PSRR): 55dB @ 1kHz
    • Output Accuracy: 

              o ±0.85% at 25°C

              o ±1% from -40°C to 125°C

    • Stable with a Minimum of 2.2μF or Lager Ceramic Output Capacitor
    • Low Current Consumption: Typical 25μA Quiescent and 0.1μA at Shutdown
    • Over Current Limit and Short Circuit Protection
    • Over Temperature Protection with Auto Recovery
    • Moisture Sensitivity Level (MSL): 1
    • Compact DFN3×3-8 Package
    • Automotive AEC-Q100 Grade 1 Qualified

    The SA21309B is a 1A current linear regulator featuring ultra-low ground current and low drop out voltage.

    The device offers an adjustable output voltage with ±1% reference accuracy over temperature, also includes comprehensive protection features including over current limiting, short circuit protection, and over-temperature operation.

    The SA21309B is available in a compact DFN3×3-8 package.

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    Technical & Design Documentation