Microchip Technology Inc

MIC26400

In Production

The Micrel MIC26400 is a constant-frequency, synchronous buck regulator featuring a unique digitally modified adaptive ON-time control architecture. The MIC26400 operates over an input supply range of 4.5V to 26V and provides a regulated output at up to 5A of output current. The output voltage is adjustable down to 0.8V with a typical accuracy of ±1%, and the device operates at a switching frequency of 300kHz.

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 MIC26400 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, foldback current limit, "hiccup" mode short-circuit protection and thermal shutdown.

 

    Features

        • Hyper Speed Control™ architecture enables
          • High delta V operation (VIN = 26V and VOUT = 0.8V)
          • Small output capacitance
        • 4.5V to 26V input voltage
        • Adjustable output from 0.8V to 5.5V (±1% accuracy)
        • Any Capacitor™ Stable
          • Zero ESR to high-ESR output capacitance
        • 5A output current capability
        • 300kHz switching frequency
        • Internal compensation
        • Up to 95% efficiency
        • 6ms Internal soft-start
        • Foldback current limit and "hiccup" mode short-circuit protection
        • Thermal shutdown
        • Supports safe start-up into a pre-biased load
        • -40°C to +125°C junction temperature range
        • 28-pin 5mm X 6mm MLF® package
    Parameter Name
    Value
    Regulator Type
    Step Down (Buck)
    # of Outputs
    1
    Input Voltage Range Min (V)
    4.5
    Input Voltage Range Max (V)
    26
    Output Voltage Range Min (V)
    0.8
    Output Voltage Range Max (V)
    5.5
    Output Current (A) max
    5000
    Quiescent Current (mA) typ
    1.4
    Switching Frequency (kHz)
    300
    Synchronous Rectifier
    Yes
    Operating Temp Range
    -40 to 125
    Vfb (V)
    0.8
    Duty Cycle Max (%)
    0.87
    SHUTDOWN Current (µA) (Typ)
    700
    Documentation
    Data Sheets
    11/05/2015
    1080KB
      Software Library
     
     
     
     
    Software Library
    08/12/2016
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC26400YJL-TR
    28
    VQFN
    -40C to +125C
    T/R
    2.10
    1.75
    1.59
    1.53
    1.52

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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
    MIC26400YJL-TR
    0.081600
    0.227180
    28
    VQFN
    5x6x0.9mm
    NiPdAu
    e4
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    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.