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MIC2101

38V DC-DC Buck Controller with Hyper Light Load™

Status: In Production

Features:

  • Hyper Speed Control™ architecture enables
  • 4.5V to 38V input voltage
  • 0.8V Reference Voltage with ±1% accuracy
  • 200kHz to 600kHz, programmable switching frequency
  • Hyper Light Load Control (MIC2101 only)
  • Enable input, Power-Good output
  • Built-in 5V regulator for single-supply operation
  • Programmable current limit and fold-back "hiccup" mode short-circuit protection
  • 5ms internal soft-start, internal compensation, and thermal shutdown
  • Supports safe start-up into a pre-biased output
  • -40°C to +125°C junction temperature range
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2101/02 are constant-frequency, synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2101/02 operates over an input supply range from 4.5V to 38V 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%. The device operates with programmable switching frequency from 200kHz to 600kHz.

Hyper Light Load™ architecture provides the same high-efficiency and ultra-fast transient response as the Hyper Speed Control architecture under the medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous-mode operation.

The MIC2101/02 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include under voltage 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.

Additional Features
    • Hyper Speed Control™ architecture enables
    • 4.5V to 38V input voltage
    • 0.8V Reference Voltage with ±1% accuracy
    • 200kHz to 600kHz, programmable switching frequency
    • Hyper Light Load Control (MIC2101 only)
    • Enable input, Power-Good output
    • Built-in 5V regulator for single-supply operation
    • Programmable current limit and fold-back "hiccup" mode short-circuit protection
    • 5ms internal soft-start, internal compensation, and thermal shutdown
    • Supports safe start-up into a pre-biased output
    • -40°C to +125°C junction temperature range

 

    Parametrics
    Name
    Value
    Supported Topologies
    Sync. Buck
    Supported Outputs
    1
    Minimum Input Voltage (V)
    4.5
    Maximum Input Voltage (V)
    38
    Minimum Output Voltage (V)
    0.8
    Maximum Output Voltage (V)
    24
    PFM, Discontinuous, Hyperlight load, or Skip Mode
    True
    Typical Tolerance (%)
    ±1
    Duty Cycle Max (%)
    0.85
    Operating Frequency (Hz)
    200K to 600K
    Power Good Signal
    True
    Soft Start
    True
    Internal Compensation
    True
    Internal Voltage Bias
    True
    Enable Pin
    True
    Current Limit / Short Circuit Protection
    True
    Input UVLO Typ (V)
    4.2
    Operating Supply Current (mA)
    0.4
    Iq Off (µA)
    0.1
    Package
    3x3 QFN

    Documents

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    Software Library

    Development Environment

    • Demo & Evaluation Boards
    • Software Libraries
    Demo & Evaluation Boards
    MIC2101YML-12A Evaluation Board
    MIC2101YML-12A Evaluation Board ( MIC2101YML-12A-EV )

    MIC2101YML-12A Evaluation Board

    Learn More
    Add To Cart
    Software Libraries
    Analog Simulation - MIC2101

    The Micrel MIC2101/02 are constant-frequency, synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2101/02 operates over an input supply range from 4.5V to 38V...

    Learn More

    RoHS Information

    Part Number
    Device Weight (g)
    Shipping Weight (grams)
    Lead Count
    Package Type
    Package Width
    Solder Composition
    JEDEC Indicator
    RoHS
    China EFUP
    MIC2101YML-TR
    0.021300
    0.801700
    16
    VQFN
    3x3x1.00mm
    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.

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