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SY20492ABC

Production
1.8V Minimum Input and 5. 5V Maximum Output High Efficiency 2A Valley Current Synchronous Boost
Datasheet
SY20492ABC 1.8V Minimum Input and 5. 5V Maximum Output High Efficiency 2A Valley Current Synchronous Boost Datasheet
    Part NumberSY20492ABC
    Vin_min (V)1.8
    Vin_max (V)5.5
    Limit Current (A)2
    Fsw (MHz)1
    Vo_max (V)5.5
    Vref Accuracy±1.5%
    Rdson1100
    Rdson2170
    Features / Special FunctionAuto Bypass Mode
    PackageSOT23-6
    • 1.8V Minimum Input Voltage
    • Adjustable Output Voltage from 1.8V to 5.5V
    • Min 2A Valley Current Limit
    • 5µA Typical Quiescent Current
    • Load Disconnect During Shutdown
    • Low RDS(ON) (Main Switch/Synchronous Switch) at 3.3V Output: 100/170mΩ
    • Output OVP
    • Auto Bypass Mode When VIN ≥VOUT
    • RoHS Compliant and Halogen Free
    • Compact Package SOT23-6

     

    The SY20492 is a high-efficiency, synchronous Boost converter designed for single-cell lithium (Li-ion or Li-polymer) or two-cell to three-cell nickel (alkaline Ni-Cd or Ni-MH) battery-powered applications. It can operate down to 1.8V input voltage. It uses NMOS for the main switch and PMOS for the synchronous switch.

    The SY20492 disconnects the output from the input during shutdown mode. When the input voltage exceeds the regulated output voltage, the SY20492 will enter bypass mode automatically. The low operating current along with a 0.1 µA shutdown current (typ.) makes this device suitable for battery applications where extended battery life is important.

    The SY20492 is available in a compact SOT23-6 package. 

    Evaluation Board

    • SY20492ABC-a

      Photo of evaluation board

    • SY20492ABC-c

      Photo of evaluation board

    • SY20492ABC-b

      Photo of evaluation board

    EVB_SY20492ABC_1

    The EVB_SY20492ABC_1 is intended for evaluating a a high efficiency, synchronous, step-up Boost converter SY20492. It can disconnect the output from the input during the shutdown mode. When input voltage exceeds the regulated output voltage, SY20492 enters bypass mode automatically.

    Technical Documentation

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