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MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package
MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package

MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package

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pMPS MP2341 — Step-Down LED Driver in SOT583 Package, 4.2-24V input, 2 A output, SOT583./p
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    MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package

    The MPS MP2341 is a Step-Down LED Driver in SOT583 Package. It operates from a 4.2 V to 24 V input, is rated for 2 A and switches at 1 MHz. It is supplied in a SOT583 package.

    The MP2341 is a 24V, monolithic, synchronous, rectified, step-down, switch-mode white LED driver with built-in internal power MOSFETs and a synchronous rectifier switch.

    Key Specifications

    Part NumberMP2341
    FunctionStep-Down LED Driver in SOT583 Package
    Input Voltage4.2 V to 24 V
    Current Rating2 A
    Switching Frequency1 MHz
    InterfacePWM
    PackageSOT583
    Ordering CodesMP2341

    Features

    • Wide 4.2V to 24V Operating Input Range
    • 125mΩ/75mΩ Low-RDS(ON) Internal Power MOSFETs
    • High-Efficiency Synchronous Mode Operation
    • Forced PWM Mode
    • Fast Load Transient Response
    • 1MHz Switching Frequency
    • Internal Soft Start (SS)
    • Analog Dimming by the DC Voltage through the EN/DIM Pin
    • Analog Dimming by the PWM Signal through the PDIM Pin
    • PWM Dimming by the PWM Signal through the EN/DIM Pin

    Typical Application Circuit

    MP2341 typical application circuit
    MP2341 typical application circuit, as published in the MPS datasheet.

    Applications

    • Infrared LED Drivers
    • General LED Drivers
    • Flashlights

    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 MP2341 support?
    4.2 V to 24 V. The rated output is 2 A.
    Which package and ordering codes apply to the MP2341?
    SOT583; order codes include MP2341.
    What are the defining features of the MP2341?
    Wide 4.2V to 24V Operating Input Range 125mΩ/75mΩ Low-RDS(ON) Internal Power MOSFETs

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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