Micrel, Inc. Supplier Page
  • Description
  • Features
  • Applications
  • Specifications

Micrel Unveils First Ever 40V Wide Input Range Boost Regulator

Micrel ImageThe MIC2601/2 is a 1.2MHz/2MHz, PWM DC/DC boost switching regulator available in a 2mm x 2mm MLF® package. High power density is achieved with the MIC2601/2’s internal 40V/1.2A switch, allowing it to power large loads in a tiny footprint.

The MIC2601/2 implements constant frequency 1.2MHz/2MHz PWM current mode control. The MIC2601/2 offers internal compensation that provides excellent transient response and output regulation performance. The high frequency operation saves board space by allowing small, low-profile external components. The fixed frequency PWM scheme also reduces spurious switching noise and ripple to the input power source.

Soft start reduces in rush current and is programmable via external capacitor.

The MIC2601/2 is available in a 2mm x 2mm 8-pin MLF® leadless package. Both devices have an output over-voltage protection feature.

The MIC2601/2 has an operating junction temperature range of –40°C to +125°C.


  • Wide input voltage range: 4.5V to 20V
  • Output voltage adjustable to 40V
  • 1.2A switch current
  • MIC2601 operates at 1.2MHz
  • MIC2602 operates at 2MHz
  • Stable with small size ceramic capacitors
  • High efficiency
  • Programmable soft start
  • >10 µA shutdown current
  • UVLO
  • Output over-voltage protection
  • Over temperature shutdown
  • 8-pin 2mm x 2mm MLF® package
  • –40°C to +125°C junction temperature range


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    Click image to view pin configuration
    DatasheetRoHS Compliant


  • Multimedia STB/Antenna
  • Broadband communications
  • TFT-LCD bias supplies
  • Bias supply
  • Positive output regulators
  • SEPIC converters
  • DSL applications
  • Local boost regulators

  • Typical Application

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    Digi-Key P/N
    Micrel P/N
    Frequency
    Output Over
    Voltage Protection
    Temp. Range
    Lead Finish
    MIC2601YML
    1.2MHz
    40V
    –40°C to +125°C
    Pb-Free
    MIC2602YML
    2MHz
    40V
    –40°C to +125°C
    Pb-Free


    Absolute Maximum Ratings(1) Operating Ratings(2)
    Supply Voltage (VIN) ......................................... 22V Supply Voltage (VIN) ........................... 4.5V to 20V
    Switch Voltage (VSW) ....................... –0.3V to +40V Enable Voltage(VEN) .............................. 0V to 20V
    Enable Voltage (VEN) ........................... –0.3V to VIN Junction Temp. (TJ) ...................... –40°C to +125°C
    FB Voltage (VFB) ................................................. 6V Junction Thermal Resistance
    Ambient Storage Temp. (TS) .......... –65°C to +150°C      2mm x 2mm MLF-8 (θJC) ........................ 90°C/W
    ESD Rating ......................................................... 2kV
     
    Notes:
    1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(Max), the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
    2. The device is not guaranteed to function outside its operating rating.