Microchip Technology Inc

MIC2176

In Production

The Micrel MIC2176-1/-2/-3 is a family of constant-frequency, synchronous buck controllers featuring a unique digitally modified adaptive ON-time control architecture. The MIC2176 family operates over an input supply range of 4.5V to 75V and can be used to supply up to 15A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%, and the device operates at a constant switching frequency of 100kHz, 200kHz, and 300kHz.

Micrel's Hyper Speed Control™ architecture allows for ultra-fast transient response while reducing the output capacitance and also makes (High VIN)/(Low VOUT) operation possible. This digitally modified adaptive tON ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device.

The MIC2176 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, fold-back current limit, "hiccup" mode short-circuit protection and thermal shutdown.

 

    Features

        • Hyper Speed Control™ architecture enables
          • High delta V operation (VIN = 75V and VOUT = 1.2V)
          • Small output capacitance
        • 4.5V to 75V input voltage
        • Output down to 0.8V with ±1% accuracy
        • Any Capacitor™ stable
          • Zero-ESR to high-ESR output capacitance
        • 100kHz/200kHz/300kHz switching frequency
        • Internal compensation
        • 6ms Internal soft-start
        • Foldback current limit and "hiccup" mode short-circuit protection
        • Thermal shutdown
        • Supports safe start-up into a pre-biased output
        • -40°C to +125°C junction temperature range
        • Available in 10-pin MSOP package
    Parameter Name
    Value
    Supported Topologies
    Sync. Buck
    Supported Outputs
    1
    Minimum Input Voltage (V)
    4.5
    Maximum Input Voltage (V)
    75
    Minimum Output Voltage (V)
    0.8
    Typical Tolerance (%)
    ±1
    Operating Frequency (Hz)
    100K, 200K, or 300k
    Soft Start
    True
    Internal Compensation
    True
    Internal Voltage Bias
    True
    Enable Pin
    True
    Current Limit / Short Circuit Protection
    True
    Input UVLO Typ (V)
    3.85
    Operating Supply Current (mA)
    1.4
    Iq Off (µA)
    700
    Package
    10/MSOP
    Documentation
    Data Sheets
    11/05/2015
    1117KB
      Software Library
     
     
     
     
    Software Library
    08/11/2016
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC2176-1YMM
    10
    MSOP
    -40C to +125C
    TUBE
    1.80
    1.50
    1.36
    1.32
    1.30
    MIC2176-1YMM-TR
    10
    MSOP
    -40C to +125C
    T/R
    1.80
    1.50
    1.36
    1.32
    1.30
    MIC2176-2YMM
    10
    MSOP
    -40C to +125C
    TUBE
    1.80
    1.50
    1.36
    1.32
    1.30
    MIC2176-2YMM-TR
    10
    MSOP
    -40C to +125C
    T/R
    1.80
    1.50
    1.36
    1.32
    1.30
    MIC2176-3YMM
    10
    MSOP
    -40C to +125C
    TUBE
    1.80
    1.50
    1.36
    1.32
    1.30
    MIC2176-3YMM-TR
    10
    MSOP
    -40C to +125C
    T/R
    1.80
    1.50
    1.36
    1.32
    1.30

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MIC2176-1YMM-TR
    0.024500
    0.431180
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MIC2176-1YMM
    0.024500
    0.135600
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MIC2176-2YMM
    0.024500
    0.135600
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MIC2176-2YMM-TR
    0.024500
    0.431180
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MIC2176-3YMM
    0.024500
    0.135600
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MIC2176-3YMM-TR
    0.024500
    0.431180
    10
    MSOP
    3x3x1.0mm
    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.