SY83071BTMC-Products-Silergy Corp

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SY83071BTMC

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High Efficiency Fast Response, 10A, 28V Input Synchronous Buck Converter with 100mA 3.3V LDO
Datasheet
SY83071BTMC High Efficiency Fast Response, 10A, 28V Input Synchronous Buck Converter with 100mA 3.3V LDO Datasheet
    Part numberSY83071BTMC
    Channel(#)2
    Vin (min) (V)4
    Vin (max) (V)28
    Switching frequency (min)(kHz)510
    Switching frequency (max)(kHz)690
    Vout (min) (V)3.31
    Vout (max) (V)3.41
    Iout (max) (A)10
    Vout2 (min)(V)3.15
    Vout2 (max )(V)3.45
    Iout2 (max)(A)0.1
    Vref accuracy (±%)±1%
    Vout accuracy(±%)
    Control modeCOT+Ripple
    Duty cycle (max)(%)
    Operation modePFM/USM Selectable
    Iq (typ) (uA)80
    FeaturesPFM/USM Selectable Light Load Operation Mode, Power Good Indicator, Output Auto-Discharge Function
    PackageQFN3×4-13
    Operating temperature range(°C)-40°C to 125°C
    Functional safety category

    ·       Low RDS(ON) for Internal MOSFETs: 18mΩ Top, 8mΩ Bottom

    ·       Wide Input Voltage Range: 4V ~ 24V

    ·       Fixed 3.36V Output Voltage

    ·       10A Continuous Output Current Capability

    ·       600kHz Pseudo-Constant Frequency

    ·       ±1% Internal Reference Voltage

    ·       Internal 1.2ms Soft-Start Limits the Inrush Current

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

    ·       Integrated 3.3V LDO with 100mA Current Capability

    ·       Integrated 1.5Ω Bypass Switch

    ·       PFM/USM Selectable Light Load Operation Mode

    ·       Power Good Indicator

    ·       Output Auto-Discharge Function

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

    ·       Latch-off Mode Output Under Voltage Protection for buck

    ·       Latch-off Mode Output Over Voltage Protection for buck

    ·       Latch-off Mode Over Temperature Protection for buck

    ·       Auto-Recovery Mode Output Under Voltage Protection for LDO

    ·       Auto-Recovery Mode Over Temperature Protection for LDO

    ·       Input Under Voltage Lockout (UVLO)

    ·       RoHS Compliant and Halogen Free

    ·       Compact package: QFN3×4-13

    ·       Moisture Sensitivity Level (MSL): 3

    The SY83071B is a high efficiency synchronous buck converter operating over a wide input voltage range of 4V to 24V and capable of delivering up to 10A current. It integrates low RDS(ON) top and bottom MOSFETs to minimize the conduction loss. It operates at a pseudo-constant frequency of 600kHz, to enable the use of small size inductor and capacitors. The SY83071B also provides a fixed 3.3V LDO with 100mA current capability, which can be used to power the external peripheries, such as the keyboard controller in notebook. The 3.3V LDO can switch to buck converter output to reduce power loss.

    Technical Documentation