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SY2A23002BDFD (SA23002BDFD)

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High-Efficiency, 5.5V, 2A Single Synchronous Buck Converter
Datasheet
SY2A23002BDFD High-Efficiency, 5.5V, 2A Single Synchronous Buck Converter Datasheet
    Part numberSY2A23002BDFD
    Channel(#)1
    Vin (min) (V)2.8
    Vin (max) (V)5.5
    Switching frequency (min)(kHz)2350
    Switching frequency (max)(kHz)2350
    Vout (min) (V)0.6
    Vout (max) (V)5.5
    Iout (max) (A)2
    Vout2 (min)(V)
    Vout2 (max )(V)
    Iout2 (max)(A)
    Vref accuracy (±%)1.5
    Vout accuracy(±%)
    Control modePeak current control
    Duty cycle (max)(%)100
    Operation modePFM
    Iq (typ) (uA)22
    FeaturesEnable,Power good,Auto-discharge,Fixed soft-start,Low Iq,UVP with hiccup,100% duty cycle,Low ISD,Cycle by cycle overcurrent protection,Pre-bias startup
    PackageDFN2×2-8
    Operating temperature range(°C)-40 to 125
    Functional safety categoryCapable
    • 2.8V to 5.5V Input Voltage Range
    • Up to 2A Output Current
    • External Adjustable Voltage with ±1.5% Reference Accuracy
    • 1μA Shutdown Current (Typical)
    • Fixed 2.35MHz Switching Frequency
    • 100% Duty-Cycle Capable
    • PFM Mode for High Efficiency at Light Load
    • Cycle-by-Cycle Current Limit Protection
    • Hiccup Mode Short-Circuit Protection
    • Power Good Indicator
    • Thermal Shutdown
    • Compact DFN2×2-8 Package
    • AEC-Q100 Qualified for Automotive Applications

    The SY2A23002B high efficiency 2.35MHz synchronous buck converter operates over an input voltage range of 2.8V to 5.5V and can deliver an output current up to 2A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 2.35MHz constant switching frequency reduces the required external inductor and capacitor values. 

    The SY2A23002B uses a peak current mode control architecture. It operates in fixed frequency pulse width modulation (PWM) mode at medium to heavy loads, and in pulse frequency modulation (PFM) mode during light loads, thereby maintaining high efficiency over the entire load current range. It also provides cycle-by-cycle current limit protection, output short-circuit protection, and overtemperature protection. 

    The SY2A23002B is available in a compact DFN2x2-8 package.

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    Technical & Design Documentation