Microchip Technology Inc

MIC23156

In Production

The MIC23156 is a high-efficiency 1.5A synchronous buck regulator with HyperLight Load® mode and dynamic voltage scaling control through I2C. HyperLight Load provides very high efficiency at light loads and ultra-fast transient response. The ability to dynamically change the output voltage and maintain high output voltage accuracy make the MIC23156 perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. Fast mode plus I2C provides output voltage and chip enable/disable control from standard I2C bus with I2C clock rates of 100kHz, 400kHz, and 1MHz.

The MIC23156 is designed for use with 1µH, and an output capacitor as small as 2.2µF that enables a total solution size, less than 1mm in height.

The MIC23156 is available in both 16-ball, 0.4mm Pitch, 1.81mm x 1.71mm wafer level chip scale (WLCSP), and 17-pin 2.8mm x 2.5mm MLF® packages with an operating junction temperature range of -40°C to +125°C.

 

    Features

        • Input voltage: 2.7V to 5.5V
        • Up to 1.5A output current
        • 1MHz I2C-controlled adjustable output: VOUT = 0.7 to 2.4V in 10mV steps
        • High output voltage accuracy (±1.5% over temperature)
        • Fast pin–selectable output voltage
        • Programmable soft-start using external capacitor
        • Ultra-low quiescent current of 30µA when not switching
        • Thermal-shutdown and current-limit protection
        • Safe startup in to pre-biased output
        • Stable with 1µH output inductor and 2.2µF ceramic capacitor
        • Up to 93% peak efficiency
        • Junction temperature range of -40°C to +125°C
    Parameter Name
    Value
    Regulator Type
    Step Down (Buck)
    # of Outputs
    1
    Input Voltage Range Min (V)
    2.7
    Input Voltage Range Max (V)
    5.5
    Output Voltage Range Min (V)
    0.7
    Output Voltage Range Max (V)
    2.4
    Output Current (A) max
    1500
    Quiescent Current (mA) typ
    0.03
    Switching Frequency (kHz)
    3000
    Synchronous Rectifier
    Yes
    Operating Temp Range
    -40 to 125
    Duty Cycle Max (%)
    0.8
    SHUTDOWN Current (µA) (Typ)
    0.1
    Light Load Efficiency Mode
    Yes
    Documentation
    Data Sheets
    11/05/2015
    1500KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC23156-0YCS-TR
    16
    WLCSP
    -40C to +125C
    T/R
    0.78
    0.65
    0.59
    0.57
    0.56
    MIC23156-0YML-TR
    17
    VQFN
    -40C to +125C
    T/R
    1.09
    0.91
    0.82
    0.80
    0.79
    MIC23156-2YCS-TR
    16
    WLCSP
    -40C to +125C
    T/R
    **
    **
    **
    **
    **
     
    MIC23156-2YML-TR
    17
    VQFN
    -40C to +125C
    T/R
    **
    **
    **
    **
    **
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • MIC23156-0YCS Evaluation Board ( MIC23156-0YCS-EV )

      MIC23156-0YCS

      The MIC23156 evaluation board allows the customer to evaluate a fully-integrated 1.5A, 3MHz synchronous buck regulator that features HyperLight Load® mode, a power good (PGOOD) output indicator, a programmable soft-start, and an output voltage scaling control through I2C. The MIC23156 is highly efficient throughout the output current range, drawing just 30μA of quiescent current during operation....

    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MIC23156-0YCS-TR
    0.031000
    16
    WLCSP
    1.8x1.7x0.67mm
    SAC
    e8
    MIC23156-2YCS-TR
    0.031000
    16
    WLCSP
    1.8x1.7x0.67mm
    SAC
    e8
    MIC23156-2YML-T5
    0.723350
    17
    VQFN
    2.5x2.8x0.9mm
    NiPdAu
    e4
    MIC23156-0YML-T5
    0.723350
    17
    VQFN
    2.5x2.8x0.9mm
    NiPdAu
    e4
    MIC23156-2YML-TR
    0.723350
    17
    VQFN
    2.5x2.8x0.9mm
    NiPdAu
    e4
    MIC23156-0YML-TR
    0.723350
    17
    VQFN
    2.5x2.8x0.9mm
    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.