Microchip Technology Inc

MIC2185

In Production

Micrel's MIC2185 is a high efficiency synchronous boost PWM control IC. With its wide input voltage range of 2.9V to 14V, the MIC2185 can be used to efficiently boost voltages in 1- or 2-cell Li-Ion battery powered applications, as well as fixed 3.3V and 5V systems. Its powerful 5 Ohm output drivers allow the MIC2185 to supply large output currents with the selection of the proper external MOSFETs.

With it's fixed frequency PWM architecture, and easily synchronized drive, the MIC2185 is ideal for noise-sensitive telecommunications applications. The nominal 400kHz operating frequency of the MIC2185 can be divided by two, allowing the device to be externally synchronized to frequencies below 400kHz.

The MIC2185 also features a low current shutdown mode and a programmable undervoltage lockout. A skipped pulse mode of operation can be manually set to achieve higher efficiencies at light load conditions.

The MIC2185 is available in a 16-pin SOIC package and 16-pin QSOP package with an ambient temperature operating range from -40°C to 85°C.

 

    Features

        • Input voltage range: 2.9V to 14V
        • 95% efficiency
        • Oscillator frequency of 200kHz/400kHz
        • Frequency sync to 600kHz
        • 0.5µA shutdown current
        • Two 5Ω output drivers
        • Front edge blanking
        • Input voltage range: 2.9V to 14V
        • 95% efficiency
        • Oscillator frequency of 200kHz/400kHz
        • Frequency sync to 600kHz
        • 0.5µA shutdown current
        • Two 5Ω output drivers
        • Front edge blanking
    Parameter Name
    Value
    Supported Topologies
    Boost, SEPIC, Cuk
    Supported Outputs
    1
    Minimum Input Voltage (V)
    2.9
    Maximum Input Voltage (V)
    14
    PFM, Discontinuous, Hyperlight load, or Skip Mode
    True
    Typical Tolerance (%)
    ±1
    Duty Cycle Max (%)
    0.85
    Operating Frequency (Hz)
    200K / 400K
    External Clock Sync
    True
    Soft Start
    True
    Internal Voltage Bias
    True
    Enable Pin
    True
    Current Limit / Short Circuit Protection
    True
    Operating Supply Current (mA)
    4.6
    Iq Off (µA)
    0.5
    Package
    16/SOIC, 16/QSOP
    Documentation
    Data Sheets
    11/05/2015
    384KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC2185YM
    16
    SOIC
    -40C to +125C
    TUBE
    3.32
    2.77
    2.52
    2.43
    2.40
     
    MIC2185YM-TR
    16
    SOIC
    -40C to +125C
    T/R
    3.32
    2.77
    2.52
    2.43
    2.40
    MIC2185YQS
    16
    QSOP
    -40C to +125C
    TUBE
    3.60
    3.00
    2.73
    2.64
    2.61
    MIC2185YQS-TR
    16
    QSOP
    -40C to +125C
    T/R
    3.60
    3.00
    2.73
    2.64
    2.61

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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
    MIC2185YM
    0.157400
    0.300000
    16
    SOIC
    .150in
    Matte Tin
    e3
    MIC2185YM-TR
    0.157400
    0.307692
    16
    SOIC
    .150in
    Matte Tin
    e3
    MIC2185YQS
    0.083600
    0.160000
    16
    QSOP
    3.90mm(.150in)
    Matte Tin
    e3
    MIC2185YQS-TR
    0.083600
    0.320000
    16
    QSOP
    3.90mm(.150in)
    Matte Tin
    e3
    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.