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MIC2205

2MHz 600mA PWM Synchronous Buck Regulator -w/LowQ® Mode

Status: In Production

Features:

  • 2.7V to 5.5V supply voltage
  • 18µA quiescent current
  • Low noise, 75mVrms
  • Output current to 600mA
  • >95% efficiency
  • 100% maximum duty cycle
  • Fixed output voltage option available
  • Ultra-fast transient response
  • Stable with 1µF ceramic output capacitor
  • Fully integrated MOSFET switches
  • 40ºC to 125ºC junction temperature range
  • Thermal shutdown and current limit protection
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2205 is a high efficiency 2MHz PWM synchronous buck (step-down) regulator that features a LowQ® size, and high efficiency solution for portable power applications.

In PWM mode, the MIC2205 operates with a constant frequency 2MHz PWM control.  Under light load conditions, such as in system sleep or standby modes, the PWM switching operation can be disabled to reduce switching losses. In this light load LowQ® mode, the LDO maintains the output voltage and draws only 18µA of quiescent current. The LDO mode of operation saves battery life while not introducing spurious noise and high ripple as experienced with pulse skipping or bursting mode regulators.

The MIC2205 operates from 2.7V to 5.5V input and features internal power MOSFETs that can supply up to 600mA output current in PWM mode. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions.

Additional Features
    • 2.7V to 5.5V supply voltage
    • Light load LowQ® LDO mode
      • 18µA quiescent current
      • Low noise, 75mVrms
    • 2MHz PWM mode
      • Output current to 600mA
      • >95% efficiency
      • 100% maximum duty cycle
    • Adjustable output voltage option down to 1V
      • Fixed output voltage option available
    • Ultra-fast transient response
    • Stable with 1µF ceramic output capacitor
    • Fully integrated MOSFET switches
    • Micropower shutdown
      • 40ºC to 125ºC junction temperature range
    • Thermal shutdown and current limit protection
    Parametrics
    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)
    1
    Output Voltage Range Max (V)
    5.5
    Output Current (mA) max
    600
    Quiescent Current (mA) typ
    0.69
    Switching Frequency (kHz)
    2000
    Synchronous Rectifier
    Yes
    Operating Temp Range
    -40 to 125
    Vfb (V)
    1
    Duty Cycle Max (%)
    1
    SHUTDOWN Current (µA) (Typ)
    0.1

    Documents

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    Development Environment

    • Demo & Evaluation Boards
    Demo & Evaluation Boards
    MIC2205YML Evaluation Board
    MIC2205YML Evaluation Board ( MIC2205YML-EV )

    The MIC2205 is a high efficiency 2MHz PWM synchronous step-down switching regulator that features a LOWQ LDO standby mode that draws only 18μA of quiescent current. The MIC2205 features an ultra-low noise, small size, and high efficiency solution for portable power applications.

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    Add To Cart

    RoHS Information

    Part Number
    Device Weight (g)
    Shipping Weight (grams)
    Lead Count
    Package Type
    Package Width
    Solder Composition
    JEDEC Indicator
    RoHS
    China EFUP
    MIC2205-1.58YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2205-1.5YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2205-1.85YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2205-1.8YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2205-1.3YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2205YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    NiPdAu
    e4
    MIC2205-1.38YML-TR
    0.022700
    0.643702
    10
    VDFN
    3x3x0.9mm
    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.

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