SY81586SVD-Products-Silergy Corp

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SY81586SVD

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High Efficiency, 6A, 18V Input Synchronous Buck Converter
Datasheet
SY81586SVD High Efficiency, 6A, 18V Input Synchronous Buck Converter Datasheet
    Part numberSY81586SVD
    Channel(#)1
    Vin (min) (V)4.5
    Vin (max) (V)18
    Switching frequency (min)(kHz)
    Switching frequency (max)(kHz)400
    Vout (min) (V)0.6
    Vout (max) (V)9.5
    Iout (max) (A)6
    Vout2 (min)(V)
    Vout2 (max )(V)
    Iout2 (max)(A)
    Vref accuracy (±%)
    Vout accuracy(±%)±1%
    Control modeCOT+Ripple
    Duty cycle (max)(%)
    Operation modePFM
    Iq (typ) (uA)200
    FeaturesAuto-Recovery Protection, Cycle by Cycle Bottom and Peak Current, Output Auto Discharge, MSL1, PFM
    PackageDFN2.5×1.5-10
    Operating temperature range(°C)-40°C to 125°C
    Functional safety category

    ·       Low RDS(ON) for Internal MOSFETs: 29mΩ Top, 19mΩ Bottom

    ·       Wide Input Voltage Range: 4.5V ~ 18V

    ·       Up to 6A Output Current

    ·       ±1% 0.6V Reference

    ·       Pulse-Frequency Modulation (PFM) Mode Operation

    ·       Internal Soft-Start Limits the Inrush Current

    ·       Support Smooth Startup with Pre-Biased Output

    ·       400kHz Switching Frequency Minimizes the External Components

    ·       Constant On-time and Ripple-Based Control to Achieve Fast Transient Responses

    ·       Output Auto-Discharge Function

    ·       Cycle-by-Cycle Valley and Peak Current Limit Protection

    ·       Hic-Cup Mode Output Under Voltage Protection

    ·       Auto-Recovery Mode Over Temperature Protection

    ·       Input Under Voltage Lockout (UVLO)

    ·       RoHS-Compliant and Halogen-Free

    ·       Compact Package: DFN2.5×1.5-10

    ·       Moisture Sensitivity Level (MSL): 1

    The SY81586 high efficiency synchronous buck converter operates over a wide input voltage range of 4.5V to 18V, and can deliver an output current up to 6A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 400kHz pseudo-constant switching frequency enables using small external inductor and capacitor values.

    Technical Documentation