SY20149A1AAC-Products-Silergy Corp

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SY20149A1AAC (SY8089A1AAC)

Production
High Efficiency, 1.5MHz, 2A Buck
Datasheet
SY20149A1AAC High Efficiency, 1.5MHz, 2A Buck Datasheet
    Part numberSY20149A1AAC
    Channel!(#)1
    Vin (min) !(V)2.5
    Vin (max) !(V)5.5
    Switching frequency (min)!(kHz)1500
    Switching frequency (max)!(kHz)1500
    Vout (min) !(V)0.6
    Vout (max) !(V)5
    Iout (max) !(A)2
    Vout2 (min)!(V)
    Vout2 (max )!(V)
    Iout2 (max)!(A)
    Vref accuracy! (±%)1.5
    Vout accuracy!(±%)
    Control modeCOT OFF+Ipeak
    Duty cycle (max)!(%)100
    Operation modeAuto PFM
    Iq (typ) !(uA)50
    FeaturesOutput discharge
    PackageSOT23-5
    Operating temperature range!(°C)-40 to 125
    Functional safety category
    • 2.5V to 5.5V Input Voltage Range
    • 50μA Low Quiescent Current
    • Low RDS(ON) for Internal Switches (Top/Bottom) 130mΩ /85mΩ
    • High Switching Frequency 1.5MHz Minimizes the External Components
    • Internal Soft-start Limits the Inrush Current
    • 100% Dropout Operation
    • Hic-cup for Short Circuit Protection
    • Output Auto Discharge Function
    • RoHS Compliant and Halogen Free
    • Compact Package: SOT23-5

     SY20149A1 is a high efficiency 1.5MHz synchronous step down DC/DC regulator capable of delivering up to 2A 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.

    The low output voltage ripple, the small external inductor and the capacitor sizes are achieved with 1.5MHz switching frequency.

    Evaluation Board

    • 20149A1-1

      Photo of evaluation board

    • 20149A1-2

      Photo of evaluation board

    • 20149A1-3

      Photo of evaluation board

    EVB_SY20149A1AAC

    The EVB_SY20149A1AAC is intended for evaluating 1.5MHz, 2A, 2.5~5.5V input, 1.8V output synchronous Buck regulator. It features enable control.

    Technical Documentation