Microchip Technology Inc

MIC4690

In Production

The MIC4690 SuperSwitcher™ is an easy-to-use, 500kHz step-down PWM voltage regulator. The MIC4690 achieves over 1A of continuous output current over a wide input voltage range in an 8-lead SO (small outline) package.

The high switching frequency of the MIC4690 allows the smallest surface-mount inductors and capacitors to be used. Internal compensation ensures fast transient response and a minimum amount of external components.

The MIC4690 features a power SO-8 package with a special lead frame that allows over 1A of continuous current. The MIC4690, housed in an SO-8, can replace larger TO-220 and TO-263 packages in many applications.

The MIC4690 allows for a high degree of safety. It has a wide input voltage range of 4V to 34V, allowing for it to be used in applications where input voltage transients may be present. Built-in safety features include over-current protection, frequency foldback protection, and thermal shutdown.

The MIC4690 is available in an 8-lead SO package with a junction temperature range of -40°C to +125°C.

 

    Features

        • SO-8 package with over 1A output current
        • Fixed 500kHz operation
        • Wide 4V to 34Vinput voltage range
        • Output voltage adjustable to 1.23V
        • All surface mount solution
        • Internally compensated with fast transient response
        • Up to 85% efficiency
        • Overcurrent protection
        • Frequency foldback short-circuit protection
        • Thermal shutdown
    Parameter Name
    Value
    Regulator Type
    Step Down (Buck)
    # of Outputs
    1
    Input Voltage Range Min (V)
    4
    Input Voltage Range Max (V)
    34
    Output Voltage Range Min (V)
    1.23
    Output Current (A) max
    1300
    Quiescent Current (mA) typ
    7
    Switching Frequency (kHz)
    500
    Operating Temp Range
    -40 to 125
    Vfb (V)
    1.23
    Duty Cycle Max (%)
    0.93
    SHUTDOWN Current (µA) (Typ)
    50
    Documentation
    Data Sheets
    11/05/2015
    275KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC4690YM
    8
    SOIC
    -40C to +125C
    TUBE
    2.38
    1.98
    1.80
    1.74
    1.72
    MIC4690YM-TR
    8
    SOIC
    -40C to +125C
    T/R
    2.38
    1.98
    1.80
    1.74
    1.72

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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
    MIC4690YM-TR
    0.078000
    0.238400
    8
    SOIC
    3.9mm
    NiPdAu
    e4
    MIC4690YM
    0.078000
    0.180842
    8
    SOIC
    3.9mm
    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.