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SY20489CUMC

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5.6V Maximum Output, 3A Valley Current, 1MHz Synchronous Boost with Auto Bypass Function
Datasheet
SY20489CUMC 5.6V Maximum Output, 3A Valley Current, 1MHz Synchronous Boost with Auto Bypass Function Datasheet
    Part NumberSY20489CUMC
    Vin_min (V)2.5
    Vin_max (V)5.5
    Limit Current (A)3
    Fsw (MHz)1
    Vo_max (V)5.6
    Vref Accuracy±1.5%
    Rdson1100
    Rdson270
    Features / Special FunctionAuto Bypass Mode When VIN ≥VOUT; OVP
    PackageCSP1.54×0.9-6
    • 2.5V Minimum Input Voltage
    • Adjustable Output Voltage from 2.5V to 5.6V
    • Min 3A Valley Current Limit
    • Capable for Seamless Transition between Boost and Bypass Mode
    • Load Disconnect During Shutdown
    • Low RDS(ON) (Main Switch/Synchronous Switch) at 5.0V Output: 70mΩ/100mΩ
    • Output OVP Protection
    • RoHS Compliant and Halogen Free
    • Compact package CSP1.54×0.9-6

    The SY20489C is a high efficiency synchronous, step-up Boost converter designed for one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline Ni-Cd or Ni-MH battery powered applications. It can convert down to 2.5V input voltage and up to 5.6V output voltage. It adopts NMOS for the main switch and PMOS for the synchronous switch.

    The SY20489C can disconnect the output from input during the shutdown mode. When input voltage exceeds the regulated output voltage, the SY20489C enters bypass mode automatically.

    Evaluation Board

    • SY20489CUMC_1-a

      Photo of evaluation board

    • SY20489CUMC_1-c

      Photo of evaluation board

    • SY20489CUMC_1-b

      Photo of evaluation board

    EVB_SY20489CUMC_1

    The EVB_SY20489CUMC_1 is intended for evaluating a is a high efficiency, synchronous, step-up boost converter SY20489C. It can disconnect the output from input during the shutdown mode. When input voltage exceeds the regulated output voltage, SY20489C enters bypass mode automatically.

    Technical Documentation

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