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SY20492AABC

Production
0.85V Minimum Input and 5. 5V Maximum Output High Efficiency 2A Valley Current Synchronous Boost
Datasheet
SY20492AABC 0.85V Minimum Input and 5. 5V Maximum Output High Efficiency 2A Valley Current Synchronous Boost Datasheet
    Part NumberSY20492AABC
    Vin_min (V)0.85
    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
    • 0.85V 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
    • RoHS Compliant and Halogen Free
    • Auto Bypass Mode When VIN ≥VOUT
    • Compact Package SOT23-6

     

    The SY20492A 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 0.85V input voltage. It uses NMOS for the main switch and PMOS for the synchronous switch.

    The SY20492A can disconnect the output from the input during shutdown mode. When the input voltage exceeds the regulated output voltage, the SY20492A 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 SY20492A is available in a compact SOT23-6 package.

    Evaluation Board

    • SY20492AABC-a

      Photo of evaluation board

    • SY20492AABC-c

      Photo of evaluation board

    • SY20492AABC-b

      Photo of evaluation board

    EVB_SY20492AABC_1

    The EVB_SY20492AABC_1 is intended for evaluating a a high efficiency, synchronous, step-up Boost converter SY20492A. It can disconnect the output from the input during the shutdown mode. When input voltage exceeds the regulated output voltage, SY20492A enters bypass mode automatically.

    Technical Documentation

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