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MP2370 4.5-24V, 1.2A, 1.4MHz Step-Down White LED Driver TSOT23
MP2370 4.5-24V, 1.2A, 1.4MHz Step-Down White LED Driver TSOT23

MP2370 4.5-24V, 1.2A, 1.4MHz Step-Down White LED Driver TSOT23

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pMPS MP2370 — Step-Down White LED Driver, 4.5-24V input, 1.2 A output, TSOT23./p
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    MP2370 4.5-24V, 1.2A, 1.4MHz Step-Down White LED Driver TSOT23

    The MPS MP2370 is a Step-Down White LED Driver. It operates from a 4.5 V to 24 V input, is rated for 1.2 A and switches at 1.4 MHz. It is supplied in a TSOT23 package.

    The MP2370 is a monolithic step-down white LED driver with a built-in power MOSFET.

    Key Specifications

    Part NumberMP2370
    FunctionStep-Down White LED Driver
    Input Voltage4.5 V to 24 V
    Current Rating1.2 A
    Switching Frequency1.4 MHz
    Peak Efficiency87%
    PackageTSOT23
    Ordering CodesMP2370

    Features

    • 1.2A Peak Output Current
    • 0.35Ω Internal Power MOSFET Switch
    • Stable with Low ESR Output Ceramic Capacitors
    • Also Work with Cap-less Configuration
    • Up to 87% Efficiency
    • 0.1μA Shutdown Mode
    • Fixed 1.4MHz Frequency
    • Thermal Shutdown
    • Cycle-by-Cycle Over Current Protection
    • Wide 4.5V to 24V Operating Input Range

    Typical Application Circuit

    MP2370 typical application circuit
    MP2370 typical application circuit, as published in the MPS datasheet.

    Applications

    • WLED Drivers
    • Distributed Power Systems
    • Battery Charger

    Design Notes

    • Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
    • In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
    • Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
    • Size the inductor and output capacitor for the string current ripple, not the total LED current.

    Common Questions

    What input voltage does the MP2370 support?
    4.5 V to 24 V. The rated output is 1.2 A.
    Which package and ordering codes apply to the MP2370?
    TSOT23; order codes include MP2370.
    What are the defining features of the MP2370?
    1.2A Peak Output Current 0.35Ω Internal Power MOSFET Switch

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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