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Datasheet Microchip MIC27600


The MIC27600 is a constant-frequency, synchronous buck regulator featuring a unique digitally modified adaptive on-time control architecture


  • Download » Datasheet PDF, 1.1 Mb, Revision: 11-05-2015
    MIC27600 - 36V, 7A Hyper Speed Control? Synchronous DC-DC Buck Regulator
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    36V, 7A Hyper Speed Controlв„ў
    Synchronous DC-DC Buck Regulator
    SuperSwitcher IIв„ў General Description Features The Micrel MIC27600 is a constant-frequency, synchronous
    buck regulator featuring a unique digitally-modified adaptive
    on-time control architecture. The MIC27600 operates over an
    input supply range of 4.5V to 36V and provides a regulated
    output of up to 7A of output current. The output voltage is
    adjustable down to 0.8V with a guaranteed accuracy of В±1%,
    and the device operates at a switching frequency of 300kHz. Micrel’s Hyper Speed Control™ architecture allows for ultrafast 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 MIC27600 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 shortcircuit protection and thermal shutdown.
    All support documentation can be found on Micrel’s web
    site at: Hyper Speed Controlв„ў architecture enables
    -High Delta V operation (VIN = 36V and VOUT = 0.8V)
    -Small output capacitance ...



Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)




# of Outputs1
Automotive RatedNo
Duty Cycle Max, %0.87
Input Voltage Range, V4.5 - 36
Light Load Efficiency ModeNo
Operating Temperature Range, °C-40 to +125
Output Current, mA) Max7000
Output Voltage Range, V0.8 - 5.5
Quiescent Current, mA) type1.4
Regulator TypeStep Down (Buck)
SHUTDOWN Current, µA700
Switching Frequency, kHz300
Synchronous RectifierYes
Vfb, V0.8

Eco Plan


Moldel Line

Series: MIC27600 (1)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 75V

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