SY20121ARC-Products-Silergy Corp

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SY20121ARC (SY8841ARC)

Production
High Efficiency 2.0MHz, 1.5A Buck
Datasheet
SY20121ARC High Efficiency 2.0MHz, 1.5A Buck Datasheet
    Part numberSY20121ARC
    Channel(#)1
    Vin (min) (V)2.6
    Vin (max) (V)5.5
    Switching frequency (min)(kHz)2000
    Switching frequency (max)(kHz)2000
    Vout (min) (V)0.6
    Vout (max) (V)5
    Iout (max) (A)1.5
    Vout2 (min)(V)
    Vout2 (max )(V)
    Iout2 (max)(A)
    Vref accuracy (±%)1
    Vout accuracy(±%)
    Control modeCOT+Ripple
    Duty cycle (max)(%)100
    Operation modeAuto PFM
    Iq (typ) (uA)55
    FeaturesOutput discharge
    PackageSOT563
    Operating temperature range(°C)-40 to 125
    Functional safety category
    • 2.6~5.5V Input Voltage Range
    • 55µA Low Quiescent Current
    • Ultra Fast Load Transient Speed
    • Low RDS(ON) for Internal Switches (Top/Bottom) 180mΩ /100mΩ
    • High Switching Frequency 2.0MHz Minimizes the External Components
    • Internal Soft-start Limits the Inrush Current
    • Output Auto Discharge Function
    • RoHS Compliant and Halogen Free
    • Compact Package: SOT563

     SY20121 is a high efficiency 2.0MHz synchronous step down DC/DC regulator capable of delivering up to 1.5A output currents. It can operate over a wide input voltage range from 2.6V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. 

    Low output voltage ripple, small external inductor and capacitor sizes are achieved with 2.0MHz switching frequency.

    Evaluation Board

    • 20121-1

      Photo of evaluation board

    • 20121-2

      Photo of evaluation board

    • 20121-3

      Photo of evaluation board

    EVB_SY20121ARC

    The EVB_SY20121ARC is intended for evaluating 2.0MHz, 1.5A, 2.6~5.5V input, 1.8V output synchronous Buck regulator. It features Enable control.

    Technical Documentation