Microchip Technology Inc

MIC2145

In Production

The MIC2145 is a small size boost switching regulator that can provide over 2.5W of output power. The input voltage range is between 2.4V to 16V, making the device suitable for one-cell Li-Ion and 3- to 4-cell alkaline/NiCad/NiMH applications. The output voltage of the MIC2145 can be adjusted up to 16V.

The MIC2145 is well suited for portable, space-sensitive applications. Its typical 450kHz operation allows small surface mount external components to be used. The MIC2145 has a low quiescent current of 200µA, and a typical shutdown current of 0.5µA. The MIC2145 is capable of high efficiencies in a small board area.

The MIC2145 features a low-on resistance internal switch that allows it to provide over 2.5W of output power. The peak switch current can be programmed through an external resistor. This allows the user to set the peak switch current at the level where maximum efficiency occurs. It also allows the user to further optimize for efficiency and inductor size by setting the peak current below the level of inductor saturation.

The MIC2145 is available in an MSOP-8 and 3mm x 3mm MLF®-10L package with an ambient operating temperature range from -40°C to +85°C.

 

    Features

        • 2.4V to 16V input voltage
        • Output adjustable to 16V
        • Programmable peak current limit
        • Soft start
        • Up to 450kHz switching frequency
        • 0.5µA shutdown current
        • 200µA quiescent current
        • Capable of 5V/500mA output with 3.3V input
        • Achieves over 85% efficiency
        • Implements low power boost, SEPIC, and flyback topologies
        • MSOP-8 and 3mm x 3mm MLF®-10L
    Parameter Name
    Value
    Regulator Type
    Step Up (Boost)
    Input Voltage Range Min (V)
    2.4
    Input Voltage Range Max (V)
    16
    Output Voltage Range Min (V)
    2.4
    Output Voltage Range Max (V)
    16
    Output Current (A) max
    2000
    Quiescent Current (mA) typ
    0.2
    Switching Frequency (kHz)
    450
    Operating Temp Range
    -40 to 85
    Vfb (V)
    1.08
    SHUTDOWN Current (µA) (Typ)
    0.5
    Switch current (A) typ
    0.9
    Alternative Topology
    SEPIC, Flyback
    Documentation
    Data Sheets
    11/05/2015
    477KB
      Application Notes
     
     
     
     
    AppNote
    10/02/2015
    37KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC2145YML
    10
    VDFN
    -40C to +85C
    TUBE
    2.02
    1.68
    1.53
    1.48
    1.46
     
    MIC2145YML-TR
    10
    VDFN
    -40C to +85C
    T/R
    2.02
    1.68
    1.53
    1.48
    1.46
    MIC2145YMM
    8
    MSOP
    -40C to +85C
    TUBE
    1.88
    1.57
    1.42
    1.38
    1.36
    MIC2145YMM-TR
    8
    MSOP
    -40C to +85C
    T/R
    1.88
    1.57
    1.42
    1.38
    1.36
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MIC2145YMM-TR
    0.025100
    0.334700
    8
    MSOP
    3x3mm
    NiPdAu
    e4
    MIC2145YMM
    0.025100
    0.124600
    8
    MSOP
    3x3mm
    NiPdAu
    e4
    MIC2145YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2145YML
    0.022700
    0.048000
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.