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SY20194AQDC

Not recommended for new designs
Ultra Low Quiescent Current 5.5V, 3A, 1.25MHz Synchronous Step Down Regulator
Datasheet
SY20194AQDC Ultra Low Quiescent Current 5.5V, 3A, 1.25MHz Synchronous Step Down Regulator Datasheet
    Part NumberSY20194AQDC
    Vin_min (V)2.5
    Vin_max (V)5.5
    Io_max (A)3
    Channels
    Vo_min (V)0.8
    Fsw (MHz)1.25
    Vref (V)
    Vref Accuracy
    Iq (uA)18
    Rdson175
    Rdson255
    Soft StartExternal
    PackageDFN3x3-16
    Topology
    Protection ModeHic-cup SCP
    Features / Special FunctionPower Good Indicator,Auto-Discharge
    Temp Range
    • Input Voltage Range: 2.5V to 5.5V
    • 1.25MHz Switching Frequency
    • Max Output Current: 3.0A
    • Peak Current Mode Control for the Fast Transient Speed
    • 100% Drop Out Function
    • Typical 18µA Quiescent Current.
    • Low RDS(ON) for Internal Switches (PFET/NFET): 75mΩ/55mΩ
    • Hic-cup Mode Protection for Hard Short Condition
    • Internal Integration with 10pF Feed-forward Capacitor
    • RoHS Compliant and Halogen Free
    • Compact Package: QFN3x3-16

    SY20194A is a high efficiency, 1.25MHz synchronous step-down DC/DC regulator with ultra low quiescent current, capable of delivering up to 3A output current.

    SY20194A operates over a wide input voltage range from 2.5V to 5.5V and integrates main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.

    Technical Documentation

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