SY20111ADQC-Products-Silergy Corp

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SY20111ADQC (SY8081ADQC)

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High Efficiency 3MHz, 1A Buck
Datasheet
SY20111ADQC High Efficiency 3MHz, 1A Buck Datasheet
    Part numberSY20111ADQC
    Channel(#)1
    Vin (min) (V)2.5
    Vin (max) (V)5.5
    Switching frequency (min)(kHz)3000
    Switching frequency (max)(kHz)3000
    Vout (min) (V)1.2
    Vout (max) (V)1.2
    Iout (max) (A)1
    Vout2 (min)(V)
    Vout2 (max )(V)
    Iout2 (max)(A)
    Vref accuracy (±%)
    Vout accuracy(±%)2
    Control modeClock+Ipeak
    Duty cycle (max)(%)100
    Operation modeAuto PFM
    Iq (typ) (uA)40
    FeaturesOutput discharge
    PackageDFN1.5×1.5-6
    Operating temperature range(°C)-40 to 125
    Functional safety category
    • Low RDS(ON) for internal switches (top/bottom) 230mΩ/150mΩ
    • 2.5~5.5V input voltage range
    • Fixed output voltage: 1.2VOUT
    • High switching frequency 3MHz minimizes the external components
    • Internal soft-start limits the inrush current
    • 100% dropout operation
    • RoHS Compliant and Halogen Free
    • Output auto discharge function
    • Compact package: DFN1.5x1.5-6

      SY20111A are high efficiency 3MHz synchronous step down DC/DC regulator ICs capable of delivering up to 1A output current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

    Evaluation Board

    • 20111A-1

      Photo of evaluation board

    • 20111A-2

      Photo of evaluation board

    • 20111A-3

      Photo of evaluation board

    EVB_ SY20111ADQC

    The EVB_ SY20111ADQC is intended for evaluating 3MHz, 1A, 1.2V output synchronous Buck regulator. It features Enable control, output voltage selection inputs.

    Technical Documentation