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SA24483TLQ

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High Efficiency, 36V Input, 3A Synchronous Step Down Regulators
Datasheet
SA24483TLQ High Efficiency, 36V Input, 3A Synchronous Step Down Regulators Datasheet
    Part numberSA24483TLQ
    Channel(#)1
    Vin (min) (V)4.5
    Vin (max) (V)36
    Switching frequency (min)(kHz)300
    Switching frequency (max)(kHz)2200
    Vout (min) (V)0.6
    Vout (max) (V)33.84
    Iout (max) (A)3
    Vout2 (min)(V)
    Vout2 (max )(V)
    Iout2 (max)(A)
    Vref accuracy (±%)1
    Vout accuracy(±%)
    Control modePeak current control
    Duty cycle (max)(%)94
    Operation modePFM
    Iq (typ) (uA)18
    FeaturesEnable,Power good,Auto-discharge,Fixed soft-start,Low Iq,UVP with hiccup,Low ISD,Adjustable switching frequency,Spread spectrum,Cycle by cycle overcurrent protection,Pre-bias startup
    PackageQFN2×2-12
    Operating temperature range(°C)-40 to 125
    Functional safety categoryCapable
    • Input Voltage Range: 4.5-36V
    • Low RDS(ON) for Internal Switches (Top/Bottom): 130/75mΩ
    • Low quiescent current: IQ = 18 µA (Typ.)
    • Internal Compensation 
    • Internal 1ms Soft-start Limits the Inrush Current
    • Adjustable Switching Frequency Range: 300kHz to 2.2MHz
    • Light Load Operating Mode: PFM
    • Output Current Capability: 3A
    • ±1% 0.6V Reference Over -40°C~125°C
    • Cycle-by-cycle Peak Current Limitation
    • Short Circuit Protection
    • Spread Spectrum Function
    • Thermal Shutdown and Auto Recovery
    • Compact Package: QFN2×2-12
    • Automotive AEC-Q100 Grade 1 Qualified
    • MSL Rating: MSL1

    The SA24483 is a high efficiency synchronous step-down DC-DC converter capable of delivering a load current of 3A. It operates over a wide input voltage range of 4.5V to 36V and integrates main and synchronous MOSFET switches with very low RDS(ON) to minimize conduction loss.

    The SA24483 uses a peak current control scheme. The switching frequency is adjustable from 300kHz to 2.2MHz using an external resistor.  The SA24483 features frequency reduction and ultralow quiescent operating to achieve high efficiency under light load. Additionally, the internal soft-start function limits inrush current during power-up. 

    The SA24483 is available in a QFN2×2-12 Package.

     

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    Technical & Design Documentation