15A, 24V High Efficiency PoL Regulators

Not Recommended For New Design as of 05-Oct-2015

    The FAN2365 is a highly efficient integrated synchronous buck regulator. The regulator is capable of operating with an input range from 4.5 V to 24 V and supporting up to 15 A continuous load currents.

    The FAN2365 utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. This device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode at light loads, while clamping the minimum frequency above the audible range with ultrasonic mode.

    Switching frequency and over-current protection can be programmed to provide a flexible solution for various applications. Output over-voltage, under-voltage, over-current, and thermal shutdown protections help prevent damage to the device during fault conditions. After thermal shutdown is activated, a hysteresis feature restarts the device when normal operating temperature is reached.


    • VIN Range: 4.5 V to 2 4V
    • High Efficiency: Over to 96% Peak
    • Continuous Output Current: 15 A
    • PFM Mode for Light-Load Efficiency
    • Precision Reference: ±1% Over Temperature
    • Output Voltage Range: 0.6 to 5.5 V
    • Programmable Frequency: 200 kHz to 1 MHz
    • Programmable Soft-Start
    • Low Shutdown Current
    • Adjustable Sourcing Current Limit
    • Internal Boot Diode
    • Thermal Shutdown
    • Halogen and Lead Free, RoHS Compliant
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    Product Product &
    Eco Status
    Replacement Part Number Packing Method Convention Package Marking
    FAN2365MPX Not Recommended For New Design as of 05-Oct-2015
    Green as of Jun 2011
     China RoHS

    PQFN 5x5.5 34L  -  Details
    1.1 x 5.5 x 5.0mm,  TAPE REEL

    PDF PQFN 5x5.5 34L  Drawing
    Last Update: Jan 2015 PDF PQFN Tape and Reel Packing Drawing
    Last Update: Mar 2017
    Line 1$Y (Fairchild logo)
    &Z (Plant Code)
    &3 (3-Digit Date Code)

    Line 2FAN23

    Line 365

    FIT [Calculate] 6.8 @55°C
    MTBF 1.47E8

    ESD (CDM) 2500V

    RƟJA 35°C/W

    RƟJC 2.7°C/W

    Moisture Sensitivity Level (MSL) 1

    Max Reflow Temp 260

    PDF RoHS IPC1752
    XML RoHS IPC1752
    PDF China RoHS

    If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
    * Click here for further top mark packaging information for FAN2365

    This product is general usage and suitable for many different applications.

    Distributor Inventory

    Product Distributor Quantity Cart RFQ Inventory Date

    Fairchild Product Availability (Projected Cumulative Factory Inventory)

    Product Product Availability Date Total Projected Inventory
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    (0.3 - 1.4)
    T use (°C)
    T Stress (°C)
    Kt (eV/K)
    Device Hours
    @ T Stress
    FIT @ T use
    MTBF @ T
    use (hours)
    FAN2365MPX 0.7 0.6 55 150 8.62E-05 519542.16 0 1.83 259.24 6.8
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